1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT COMPILER COMPONENTS                         --
4--                                                                          --
5--                                E I N F O                                 --
6--                                                                          --
7--                                 S p e c                                  --
8--                                                                          --
9--          Copyright (C) 1992-2015, Free Software Foundation, Inc.         --
10--                                                                          --
11-- GNAT is free software;  you can  redistribute it  and/or modify it under --
12-- terms of the  GNU General Public License as published  by the Free Soft- --
13-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
14-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
15-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
16-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
17--                                                                          --
18-- As a special exception under Section 7 of GPL version 3, you are granted --
19-- additional permissions described in the GCC Runtime Library Exception,   --
20-- version 3.1, as published by the Free Software Foundation.               --
21--                                                                          --
22-- You should have received a copy of the GNU General Public License and    --
23-- a copy of the GCC Runtime Library Exception along with this program;     --
24-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
25-- <http://www.gnu.org/licenses/>.                                          --
26--                                                                          --
27-- GNAT was originally developed  by the GNAT team at  New York University. --
28-- Extensive contributions were provided by Ada Core Technologies Inc.      --
29--                                                                          --
30------------------------------------------------------------------------------
31
32with Snames; use Snames;
33with Types;  use Types;
34with Uintp;  use Uintp;
35with Urealp; use Urealp;
36
37package Einfo is
38
39--  This package defines the annotations to the abstract syntax tree that
40--  are needed to support semantic processing of an Ada compilation.
41
42--  Note that after editing this spec and the corresponding body it is
43--  required to run ceinfo to check the consistentcy of spec and body.
44--  See ceinfo.adb for more information about the checks made.
45
46--  These annotations are for the most part attributes of declared entities,
47--  and they correspond to conventional symbol table information. Other
48--  attributes include sets of meanings for overloaded names, possible
49--  types for overloaded expressions, flags to indicate deferred constants,
50--  incomplete types, etc. These attributes are stored in available fields in
51--  tree nodes (i.e. fields not used by the parser, as defined by the Sinfo
52--  package specification), and accessed by means of a set of subprograms
53--  which define an abstract interface.
54
55--  There are two kinds of semantic information
56
57--    First, the tree nodes with the following Nkind values:
58
59--      N_Defining_Identifier
60--      N_Defining_Character_Literal
61--      N_Defining_Operator_Symbol
62
63--    are called Entities, and constitute the information that would often
64--    be stored separately in a symbol table. These nodes are all extended
65--    to provide extra space, and contain fields which depend on the entity
66--    kind, as defined by the contents of the Ekind field. The use of the
67--    Ekind field, and the associated fields in the entity, are defined
68--    in this package, as are the access functions to these fields.
69
70--    Second, in some cases semantic information is stored directly in other
71--    kinds of nodes, e.g. the Etype field, used to indicate the type of an
72--    expression. The access functions to these fields are defined in the
73--    Sinfo package, but their full documentation is to be found in
74--    the Einfo package specification.
75
76--  Declaration processing places information in the nodes of their defining
77--  identifiers. Name resolution places in all other occurrences of an
78--  identifier a pointer to the corresponding defining occurrence.
79
80--------------------------------
81-- The XEINFO Utility Program --
82--------------------------------
83
84--  XEINFO is a utility program which automatically produces a C header file,
85--  einfo.h from the spec and body of package Einfo. It reads the input files
86--  einfo.ads and einfo.adb and produces the output file einfo.h. XEINFO is run
87--  automatically by the build scripts when you do a full bootstrap.
88
89--  In order for this utility program to operate correctly, the form of the
90--  einfo.ads and einfo.adb files must meet certain requirements and be laid
91--  out in a specific manner.
92
93--  The general form of einfo.ads is as follows:
94
95--     type declaration for type Entity_Kind
96--     subtype declarations declaring subranges of Entity_Kind
97--     subtype declarations declaring synonyms for some standard types
98--     function specs for attributes
99--     procedure specs
100--     pragma Inline declarations
101
102--  This order must be observed. There are no restrictions on the procedures,
103--  since the C header file only includes functions (The back end is not
104--  allowed to modify the generated tree). However, functions are required to
105--  have headers that fit on a single line.
106
107--  XEINFO reads and processes the function specs and the pragma Inlines. For
108--  functions that are declared as inlined, XEINFO reads the corresponding body
109--  from einfo.adb, and processes it into C code. This results in some strict
110--  restrictions on which functions can be inlined:
111
112--     The function spec must be on a single line
113
114--     There can only be a single statement, contained on a single line,
115--     not counting any pragma Assert statements.
116
117--     This single statement must either be a function call with simple,
118--     single token arguments, or it must be a membership test of the form
119--     a in b, where a and b are single tokens.
120
121--  For functions that are not inlined, there is no restriction on the body,
122--  and XEINFO generates a direct reference in the C header file which allows
123--  the C code in the backend to directly call the corresponding Ada body.
124
125----------------------------------
126-- Handling of Type'Size Values --
127----------------------------------
128
129--  The Ada 95 RM contains some rather peculiar (to us) rules on the value
130--  of type'Size (see RM 13.3(55)). We have found that attempting to use
131--  these RM Size values generally, and in particular for determining the
132--  default size of objects, creates chaos, and major incompatibilities in
133--  existing code.
134
135--  We proceed as follows, for discrete and fixed-point subtypes, we have
136--  two separate sizes for each subtype:
137
138--    The Object_Size, which is used for determining the default size of
139--    objects and components. This size value can be referred to using the
140--    Object_Size attribute. The phrase "is used" here means that it is
141--    the basis of the determination of the size. The backend is free to
142--    pad this up if necessary for efficiency, e.g. an 8-bit stand-alone
143--    character might be stored in 32 bits on a machine with no efficient
144--    byte access instructions such as the Alpha.
145
146--    The default rules for the value of Object_Size for fixed-point and
147--    discrete types are as follows:
148
149--       The Object_Size for base subtypes reflect the natural hardware
150--       size in bits (see Ttypes and Cstand for integer types). For
151--       enumeration and fixed-point base subtypes have 8, 16, 32, or 64
152--       bits for this size, depending on the range of values to be stored.
153
154--       The Object_Size of a subtype is the same as the Object_Size of
155--       the subtype from which it is obtained.
156
157--       The Object_Size of a derived base type is copied from the parent
158--       base type, and the Object_Size of a derived first subtype is copied
159--       from the parent first subtype.
160
161--    The Value_Size which is the number of bits required to store a value
162--    of the type. This size can be referred to using the Value_Size
163--    attribute. This value is used to determine how tightly to pack
164--    records or arrays with components of this type, and also affects
165--    the semantics of unchecked conversion (unchecked conversions where
166--    the Value_Size values differ generate a warning, and are potentially
167--    target dependent).
168
169--    The default rules for the value of Value_Size are as follows:
170
171--       The Value_Size for a base subtype is the minimum number of bits
172--       required to store all values of the type (including the sign bit
173--       only if negative values are possible).
174
175--       If a subtype statically matches the first subtype, then it has
176--       by default the same Value_Size as the first subtype. This is a
177--       consequence of RM 13.1(14) ("if two subtypes statically match,
178--       then their subtype-specific aspects are the same".)
179
180--       All other subtypes have a Value_Size corresponding to the minimum
181--       number of bits required to store all values of the subtype. For
182--       dynamic bounds, it is assumed that the value can range down or up
183--       to the corresponding bound of the ancestor.
184
185--    The RM defined attribute Size corresponds to the Value_Size attribute.
186
187--    The Size attribute may be defined for a first-named subtype. This sets
188--    the Value_Size of the first-named subtype to the given value, and the
189--    Object_Size of this first-named subtype to the given value padded up
190--    to an appropriate boundary. It is a consequence of the default rules
191--    above that this Object_Size will apply to all further subtypes. On the
192--    other hand, Value_Size is affected only for the first subtype, any
193--    dynamic subtypes obtained from it directly, and any statically matching
194--    subtypes. The Value_Size of any other static subtypes is not affected.
195
196--    Value_Size and Object_Size may be explicitly set for any subtype using
197--    an attribute definition clause. Note that the use of these attributes
198--    can cause the RM 13.1(14) rule to be violated. If two access types
199--    reference aliased objects whose subtypes have differing Object_Size
200--    values as a result of explicit attribute definition clauses, then it
201--    is erroneous to convert from one access subtype to the other.
202
203--    At the implementation level, Esize stores the Object_Size and the
204--    RM_Size field stores the Value_Size (and hence the value of the
205--    Size attribute, which, as noted above, is equivalent to Value_Size).
206
207--  To get a feel for the difference, consider the following examples (note
208--  that in each case the base is short_short_integer with a size of 8):
209
210--                                            Object_Size     Value_Size
211
212--     type x1 is range 0..5;                      8               3
213
214--     type x2 is range 0..5;
215--     for x2'size use 12;                        16              12
216
217--     subtype x3 is x2 range 0 .. 3;             16               2
218
219--     subtype x4 is x2'base range 0 .. 10;        8               4
220
221--     dynamic : x2'Base range -64 .. +63;
222
223--     subtype x5 is x2 range 0 .. dynamic;       16               3*
224
225--     subtype x6 is x2'base range 0 .. dynamic;   8               7*
226
227--  Note: the entries marked * are not actually specified by the Ada 95 RM,
228--  but it seems in the spirit of the RM rules to allocate the minimum number
229--  of bits known to be large enough to hold the given range of values.
230
231--  So far, so good, but GNAT has to obey the RM rules, so the question is
232--  under what conditions must the RM Size be used. The following is a list
233--  of the occasions on which the RM Size must be used:
234
235--    Component size for packed arrays or records
236--    Value of the attribute Size for a type
237--    Warning about sizes not matching for unchecked conversion
238
239--  The RM_Size field keeps track of the RM Size as needed in these
240--  three situations.
241
242--  For elementary types other than discrete and fixed-point types, the
243--  Object_Size and Value_Size are the same (and equivalent to the RM
244--  attribute Size). Only Size may be specified for such types.
245
246--  For composite types, Object_Size and Value_Size are computed from their
247--  respective value for the type of each element as well as the layout.
248
249--  All size attributes are stored as Uint values. Negative values are used to
250--  reference GCC expressions for the case of non-static sizes, as explained
251--  in Repinfo.
252
253--------------------------------------
254-- Delayed Freezing and Elaboration --
255--------------------------------------
256
257--  The flag Has_Delayed_Freeze indicates that an entity carries an explicit
258--  freeze node, which appears later in the expanded tree.
259
260--  a) The flag is used by the front-end to trigger expansion actions which
261--  include the generation of that freeze node. Typically this happens at the
262--  end of the current compilation unit, or before the first subprogram body is
263--  encountered in the current unit. See files freeze and exp_ch13 for details
264--  on the actions triggered by a freeze node, which include the construction
265--  of initialization procedures and dispatch tables.
266
267--  b) The presence of a freeze node on an entity is used by the backend to
268--  defer elaboration of the entity until its freeze node is seen. In the
269--  absence of an explicit freeze node, an entity is frozen (and elaborated)
270--  at the point of declaration.
271
272--  For object declarations, the flag is set when an address clause for the
273--  object is encountered. Legality checks on the address expression only take
274--  place at the freeze point of the object.
275
276--  Most types have an explicit freeze node, because they cannot be elaborated
277--  until all representation and operational items that apply to them have been
278--  analyzed. Private types and incomplete types have the flag set as well, as
279--  do task and protected types.
280
281--  Implicit base types created for type derivations, as well as classwide
282--  types created for all tagged types, have the flag set.
283
284--  If a subprogram has an access parameter whose designated type is incomplete
285--  the subprogram has the flag set.
286
287-----------------------
288-- Entity Attributes --
289-----------------------
290
291--  This section contains a complete list of the attributes that are defined
292--  on entities. Some attributes apply to all entities, others only to certain
293--  kinds of entities. In the latter case the attribute should only be set or
294--  accessed if the Ekind field indicates an appropriate entity.
295
296--  There are two kinds of attributes that apply to entities, stored and
297--  synthesized. Stored attributes correspond to a field or flag in the entity
298--  itself. Such attributes are identified in the table below by giving the
299--  field or flag in the attribute that is used to hold the attribute value.
300--  Synthesized attributes are not stored directly, but are rather computed as
301--  needed from other attributes, or from information in the tree. These are
302--  marked "synthesized" in the table below. The stored attributes have both
303--  access functions and set procedures to set the corresponding values, while
304--  synthesized attributes have only access functions.
305
306--  Note: in the case of Node, Uint, or Elist fields, there are cases where the
307--  same physical field is used for different purposes in different entities,
308--  so these access functions should only be referenced for the class of
309--  entities in which they are defined as being present. Flags are not
310--  overlapped in this way, but nevertheless as a matter of style and
311--  abstraction (which may or may not be checked by assertions in the
312--  body), this restriction should be observed for flag fields as well.
313
314--  Note: certain of the attributes on types apply only to base types, and
315--  are so noted by the notation [base type only]. These are cases where the
316--  attribute of any subtype is the same as the attribute of the base type.
317--  The attribute can be referenced on a subtype (and automatically retrieves
318--  the value from the base type). However, it is an error to try to set the
319--  attribute on other than the base type, and if assertions are enabled,
320--  an attempt to set the attribute on a subtype will raise an assert error.
321
322--  Other attributes are noted as applying to the [implementation base type
323--  only].  These are representation attributes which must always apply to a
324--  full non-private type, and where the attributes are always on the full
325--  type. The attribute can be referenced on a subtype (and automatically
326--  retries the value from the implementation base type). However, it is an
327--  error to try to set the attribute on other than the implementation base
328--  type, and if assertions are enabled, an attempt to set the attribute on a
329--  subtype will raise an assert error.
330
331--    Abstract_States (Elist25)
332--       Defined for E_Package entities. Contains a list of all the abstract
333--       states declared by the related package.
334
335--    Accept_Address (Elist21)
336--       Defined in entries. If an accept has a statement sequence, then an
337--       address variable is created, which is used to hold the address of the
338--       parameters, as passed by the runtime. Accept_Address holds an element
339--       list which represents a stack of entities for these address variables.
340--       The current entry is the top of the stack, which is the last element
341--       on the list. A stack is required to handle the case of nested select
342--       statements referencing the same entry.
343
344--    Access_Disp_Table (Elist16) [implementation base type only]
345--       Defined in E_Record_Type and E_Record_Subtype entities. Set in tagged
346--       types to point to their dispatch tables. The first two entities are
347--       associated with the primary dispatch table: 1) primary dispatch table
348--       with user-defined primitives 2) primary dispatch table with predefined
349--       primitives. For each interface type covered by the tagged type we also
350--       have: 3) secondary dispatch table with thunks of primitives covering
351--       user-defined interface primitives, 4) secondary dispatch table with
352--       thunks of predefined primitives, 5) secondary dispatch table with user
353--       defined primitives, and 6) secondary dispatch table with predefined
354--       primitives. The last entity of this list is an access type declaration
355--       used to expand dispatching calls through the primary dispatch table.
356--       For an untagged record, contains No_Elist.
357
358--    Activation_Record_Component (Node31)
359--       Defined in E_Variable, E_Constant, E_Loop_Parameter, E_In_Parameter,
360--       E_Out_Parameter, E_In_Out_Parameter nodes. Used only if we are in
361--       Opt.Unnest_Subprogram_Mode, in which case for the case of an uplevel
362--       referenced entity, this field contains the entity for the component
363--       in the generated ARECnT activation record (Exp_Unst for details).
364
365--    Actual_Subtype (Node17)
366--       Defined in variables, constants, and formal parameters. This is the
367--       subtype imposed by the value of the object, as opposed to its nominal
368--       subtype, which is imposed by the declaration. The actual subtype
369--       differs from the nominal one when the latter is indefinite (as in the
370--       case of an unconstrained formal parameter, or a variable declared
371--       with an unconstrained type and an initial value). The nominal subtype
372--       is the Etype entry for the entity. The Actual_Subtype field is set
373--       only if the actual subtype differs from the nominal subtype. If the
374--       actual and nominal subtypes are the same, then the Actual_Subtype
375--       field is Empty, and Etype indicates both types.
376--
377--       For objects, the Actual_Subtype is set only if this is a discriminated
378--       type. For arrays, the bounds of the expression are obtained and the
379--       Etype of the object is directly the constrained subtype. This is
380--       rather irregular, and the semantic checks that depend on the nominal
381--       subtype being unconstrained use flag Is_Constr_Subt_For_U_Nominal(qv).
382
383--    Address_Clause (synthesized)
384--       Applies to entries, objects and subprograms. Set if an address clause
385--       is present which references the object or subprogram and points to
386--       the N_Attribute_Definition_Clause node. Empty if no Address clause.
387--       The expression in the address clause is always a constant that is
388--       defined before the entity to which the address clause applies.
389--       Note: The backend references this field in E_Task_Type entities???
390
391--    Address_Taken (Flag104)
392--       Defined in all entities. Set if the Address or Unrestricted_Access
393--       attribute is applied directly to the entity, i.e. the entity is the
394--       entity of the prefix of the attribute reference. Also set if the
395--       entity is the second argument of an Asm_Input or Asm_Output attribute,
396--       as the construct may entail taking its address. Used by the backend to
397--       make sure that the address can be meaningfully taken, and also in the
398--       case of subprograms to control output of certain warnings.
399
400--    Aft_Value (synthesized)
401--       Applies to fixed and decimal types. Computes a universal integer that
402--       holds value of the Aft attribute for the type.
403
404--    Alias (Node18)
405--       Defined in overloadable entities (literals, subprograms, entries) and
406--       subprograms that cover a primitive operation of an abstract interface
407--       (that is, subprograms with the Interface_Alias attribute). In case of
408--       overloaded entities it points to the parent subprogram of a derived
409--       subprogram. In case of abstract interface subprograms it points to the
410--       subprogram that covers the abstract interface primitive. Also used for
411--       a subprogram renaming, where it points to the renamed subprogram. For
412--       an inherited operation (of a type extension) that is overridden in a
413--       private part, the Alias is the overriding operation. In this fashion a
414--       call from outside the package ends up executing the new body even if
415--       non-dispatching, and a call from inside calls the overriding operation
416--       because it hides the implicit one. Alias is always empty for entries.
417
418--    Alignment (Uint14)
419--       Defined in entities for types and also in constants, variables
420--       (including exceptions where it refers to the static data allocated for
421--       an exception), loop parameters, and formal parameters. This indicates
422--       the desired alignment for a type, or the actual alignment for an
423--       object. A value of zero (Uint_0) indicates that the alignment has not
424--       been set yet. The alignment can be set by an explicit alignment
425--       clause, or set by the front-end in package Layout, or set by the
426--       back-end as part of the back-end back-annotation process. The
427--       alignment field is also defined in E_Exception entities, but there it
428--       is used only by the back-end for back annotation.
429
430--    Alignment_Clause (synthesized)
431--       Applies to all entities for types and objects. If an alignment
432--       attribute definition clause is present for the entity, then this
433--       function returns the N_Attribute_Definition clause that specifies the
434--       alignment. If no alignment clause applies to the type, then the call
435--       to this function returns Empty. Note that the call can return a
436--       non-Empty value even if Has_Alignment_Clause is not set (happens with
437--       subtype and derived type declarations). Note also that a record
438--       definition clause with an (obsolescent) mod clause is converted
439--       into an attribute definition clause for this purpose.
440
441--    Anonymous_Master (Node36)
442--       Defined in the entities of non-generic packages, subprograms and their
443--       corresponding bodies. Contains the entity of a special heterogeneous
444--       finalization master that services most anonymous access-to-controlled
445--       allocations that occur within the unit.
446
447--    Anonymous_Object (Node30)
448--       Present in protected and task type entities. Contains the entity of
449--       the anonymous object created for a single protected or task type.
450
451--    Associated_Entity (Node37)
452--       Defined in all entities. This field is similar to Associated_Node, but
453--       applied to entities. The attribute links an entity from the generic
454--       template with its corresponding entity in the analyzed generic copy.
455--       The global references mechanism relies on the Associated_Entity to
456--       infer the context.
457
458--    Associated_Formal_Package (Node12)
459--       Defined in packages that are the actuals of formal_packages. Points
460--       to the entity in the declaration for the formal package.
461
462--    Associated_Node_For_Itype (Node8)
463--       Defined in all type and subtype entities. Set non-Empty only for
464--       Itypes. Set to point to the associated node for the Itype, i.e.
465--       the node whose elaboration generated the Itype. This is used for
466--       copying trees, to determine whether or not to copy an Itype, and
467--       also for accessibility checks on anonymous access types. This
468--       node is typically an object declaration, component declaration,
469--       type or subtype declaration.
470
471--       For an access discriminant in a type declaration, the associated_
472--       node_for_itype is the corresponding discriminant specification.
473
474--       For an access parameter it is the enclosing subprogram declaration.
475
476--       For an access_to_protected_subprogram parameter it is the declaration
477--       of the corresponding formal parameter.
478--
479--       Itypes have no explicit declaration, and therefore are not attached to
480--       the tree: their Parent field is always empty. The Associated_Node_For_
481--       Itype is the only way to determine the construct that leads to the
482--       creation of a given itype entity.
483
484--    Associated_Storage_Pool (Node22) [root type only]
485--       Defined in simple and general access type entities. References the
486--       storage pool to be used for the corresponding collection. A value of
487--       Empty means that the default pool is to be used. This is defined
488--       only in the root type, since derived types must have the same pool
489--       as the parent type.
490
491--    Barrier_Function (Node12)
492--       Defined in protected entries and entry families. This is the
493--       subprogram declaration for the body of the function that returns
494--       the value of the entry barrier.
495
496--    Base_Type (synthesized)
497--       Applies to all type and subtype entities. Returns the base type of a
498--       type or subtype. The base type of a type is the type itself. The base
499--       type of a subtype is the type that it constrains (which is always
500--       a type entity, not some other subtype). Note that in the case of a
501--       subtype of a private type, it is possible for the base type attribute
502--       to return a private type, even if the subtype to which it applies is
503--       non-private. See also Implementation_Base_Type. Note: it is allowed to
504--       apply Base_Type to other than a type, in which case it simply returns
505--       the entity unchanged.
506
507--    Block_Node (Node11)
508--       Defined in block entities. Points to the identifier in the
509--       Block_Statement itself. Used when retrieving the block construct
510--       for finalization purposes, The block entity has an implicit label
511--       declaration in the enclosing declarative part, and has otherwise
512--       no direct connection in the tree with the block statement. The
513--       link is to the identifier (which is an occurrence of the entity)
514--       and not to the block_statement itself, because the statement may
515--       be rewritten, e.g. in the process of removing dead code.
516
517--    Body_Entity (Node19)
518--       Defined in package and generic package entities, points to the
519--       corresponding package body entity if one is present.
520
521--    Body_Needed_For_SAL (Flag40)
522--       Defined in package and subprogram entities that are compilation
523--       units. Indicates that the source for the body must be included
524--       when the unit is part of a standalone library.
525
526--    Body_References (Elist16)
527--       Defined in abstract state entities. Contains an element list of
528--       references (identifiers) that appear in a package body whose spec
529--       defines the related state. If the body refines the said state, all
530--       references on this list are illegal due to the visible refinement.
531
532--    BIP_Initialization_Call (Node29)
533--       Defined in constants and variables whose corresponding declaration
534--       is wrapped in a transient block and the inital value is provided by
535--       a build-in-place function call. Contains the relocated build-in-place
536--       call after the expansion has decoupled the call from the object. This
537--       attribute is used by the finalization machinery to insert cleanup code
538--       for all additional transient variables found in the transient block.
539
540--    C_Pass_By_Copy (Flag125) [implementation base type only]
541--       Defined in record types. Set if a pragma Convention for the record
542--       type specifies convention C_Pass_By_Copy. This convention name is
543--       treated as identical in all respects to convention C, except that
544--       if it is specified for a record type, then the C_Pass_By_Copy flag
545--       is set, and if a foreign convention subprogram has a formal of the
546--       corresponding type, then the parameter passing mechanism will be
547--       set to By_Copy (unless specifically overridden by an Import or
548--       Export pragma).
549
550--    Can_Never_Be_Null (Flag38)
551--       This flag is defined in all entities. It is set in an object which can
552--       never have a null value. Set for constant access values initialized to
553--       a non-null value. This is also set for all access parameters in Ada 83
554--       and Ada 95 modes, and for access parameters that explicitly exclude
555--       exclude null in Ada 2005 mode.
556--
557--       This is used to avoid unnecessary resetting of the Is_Known_Non_Null
558--       flag for such entities. In Ada 2005 mode, this is also used when
559--       determining subtype conformance of subprogram profiles to ensure
560--       that two formals have the same null-exclusion status.
561--
562--       This is also set on some access types, e.g. the Etype of the anonymous
563--       access type of a controlling formal.
564
565--    Can_Use_Internal_Rep (Flag229) [base type only]
566--       Defined in Access_Subprogram_Kind nodes. This flag is set by the
567--       front end and used by the backend. False means that the backend
568--       must represent the type in the same way as Convention-C types (and
569--       other foreign-convention types). On many targets, this means that
570--       the backend will use dynamically generated trampolines for nested
571--       subprograms. True means that the backend can represent the type in
572--       some internal way. On the aforementioned targets, this means that the
573--       backend will not use dynamically generated trampolines. This flag
574--       must be False if Has_Foreign_Convention is True; otherwise, the front
575--       end is free to set the policy.
576--
577--       Setting this False in all cases corresponds to the traditional back
578--       end strategy, where all access-to-subprogram types are represented the
579--       same way, independent of the Convention. For further details, see also
580--       Always_Compatible_Rep in Targparm.
581--
582--       Efficiency note: On targets that use dynamically generated
583--       trampolines, False generally favors efficiency of top-level
584--       subprograms, whereas True generally favors efficiency of nested
585--       ones. On other targets, this flag has little or no effect on
586--       efficiency. The front end should take this into account. In
587--       particular, pragma Favor_Top_Level gives a hint that the flag
588--       should be False.
589--
590--       Note: We considered using Convention-C for this purpose, but we need
591--       this separate flag, because Convention-C implies that in the case of
592--       P'[Unrestricted_]Access, P also have convention C. Sometimes we want
593--       to have Can_Use_Internal_Rep False for an access type, but allow P to
594--       have convention Ada.
595
596--    Chars (Name1)
597--       Defined in all entities. This field contains an entry into the names
598--       table that has the character string of the identifier, character
599--       literal or operator symbol. See Namet for further details. Note that
600--       throughout the processing of the front end, this name is the simple
601--       unqualified name. However, just before the backend is called, a call
602--       is made to Qualify_All_Entity_Names. This causes entity names to be
603--       qualified using the encoding described in exp_dbug.ads, and from that
604--       point (including post backend steps, e.g. cross-reference generation),
605--       the entities will contain the encoded qualified names.
606
607--    Checks_May_Be_Suppressed (Flag31)
608--       Defined in all entities. Set if a pragma Suppress or Unsuppress
609--       mentions the entity specifically in the second argument. If this
610--       flag is set the Global_Entity_Suppress and Local_Entity_Suppress
611--       tables must be consulted to determine if there actually is an active
612--       Suppress or Unsuppress pragma that applies to the entity.
613
614--    Class_Wide_Preconds (List38)
615--       Defined on subprograms. Holds the list of class-wide precondition
616--       functions inherited from ancestors. Each such function is an
617--       instantiation of the generic function generated from an explicit
618--       aspect specification for a class-wide precondition. A type is an
619--       ancestor of itself, and therefore a root type has such an instance
620--       on its own list.
621
622--    Class_Wide_Postconds (List39)
623--       Ditto for class-wide postconditions.
624
625--    Class_Wide_Type (Node9)
626--       Defined in all type entities. For a tagged type or subtype, returns
627--       the corresponding implicitly declared class-wide type. For a
628--       class-wide type, returns itself. Set to Empty for untagged types.
629
630--    Cloned_Subtype (Node16)
631--       Defined in E_Record_Subtype and E_Class_Wide_Subtype entities.
632--       Each such entity can either have a Discriminant_Constraint, in
633--       which case it represents a distinct type from the base type (and
634--       will have a list of components and discrimants in the list headed by
635--       First_Entity) or else no such constraint, in which case it will be a
636--       copy of the base type.
637--
638--       o  Each element of the list in First_Entity is copied from the base
639--          type; in that case, this field is Empty.
640--
641--       o  The list in First_Entity is shared with the base type; in that
642--          case, this field points to that entity.
643--
644--       A record or classwide subtype may also be a copy of some other
645--       subtype and share the entities in the First_Entity with that subtype.
646--       In that case, this field points to that subtype.
647--
648--       For E_Class_Wide_Subtype, the presence of Equivalent_Type overrides
649--       this field. Note that this field ONLY appears in subtype entries, not
650--       in type entries, it is not defined, and it is an error to reference
651--       Cloned_Subtype in an E_Record_Type or E_Class_Wide_Type entity.
652
653--    Comes_From_Source
654--       This flag appears on all nodes, including entities, and indicates
655--       that the node was created by the scanner or parser from the original
656--       source. Thus for entities, it indicates that the entity is defined
657--       in the original source program.
658
659--    Component_Alignment (special field) [base type only]
660--       Defined in array and record entities. Contains a value of type
661--       Component_Alignment_Kind indicating the alignment of components.
662--       Set to Calign_Default normally, but can be overridden by use of
663--       the Component_Alignment pragma. Note: this field is currently
664--       stored in a non-standard way, see body for details.
665
666--    Component_Bit_Offset (Uint11)
667--       Defined in record components (E_Component, E_Discriminant) if a
668--       component clause applies to the component. First bit position of
669--       given component, computed from the first bit and position values
670--       given in the component clause. A value of No_Uint means that the
671--       value is not yet known. The value can be set by the appearance of
672--       an explicit component clause in a record representation clause,
673--       or it can be set by the front-end in package Layout, or it can be
674--       set by the backend. By the time backend processing is completed,
675--       this field is always set. A negative value is used to represent
676--       a value which is not known at compile time, and must be computed
677--       at run-time (this happens if fields of a record have variable
678--       lengths). See package Layout for details of these values.
679--
680--       Note: Component_Bit_Offset is redundant with respect to the fields
681--       Normalized_First_Bit and Normalized_Position, and could in principle
682--       be eliminated, but it is convenient in several situations, including
683--       use in the backend, to have this redundant field.
684
685--    Component_Clause (Node13)
686--       Defined in record components and discriminants. If a record
687--       representation clause is present for the corresponding record type a
688--       that specifies a position for the component, then the Component_Clause
689--       field of the E_Component entity points to the N_Component_Clause node.
690--       Set to Empty if no record representation clause was present, or if
691--       there was no specification for this component.
692
693--    Component_Size (Uint22) [implementation base type only]
694--       Defined in array types. It contains the component size value for
695--       the array. A value of No_Uint means that the value is not yet set.
696--       The value can be set by the use of a component size clause, or
697--       by the front end in package Layout, or by the backend. A negative
698--       value is used to represent a value which is not known at compile
699--       time, and must be computed at run-time (this happens if the type
700--       of the component has a variable length size). See package Layout
701--       for details of these values.
702
703--    Component_Type (Node20) [implementation base type only]
704--       Defined in array types and string types. References component type.
705
706--    Contains_Ignored_Ghost_Code (Flag279)
707--       Defined in blocks, packages and their bodies, subprograms and their
708--       bodies. Set if the entity contains any ignored Ghost code in the form
709--       of declaration, procedure call, assignment statement or pragma.
710
711--    Contract (Node34)
712--       Defined in constant, entry, entry family, operator, [generic] package,
713--       package body, protected type, [generic] subprogram, subprogram body,
714--       variable and task type entities. Points to the contract of the entity,
715--       holding various assertion items and data classifiers.
716
717--    Contract_Wrapper (Node25)
718--       Defined in entry and entry family entities. Set only when the entry
719--       [family] has contract cases, preconditions, and/or postconditions.
720--       Contains the entity of a wrapper procedure which encapsulates the
721--       original entry and implements precondition/postcondition semantics.
722
723--    Corresponding_Concurrent_Type (Node18)
724--       Defined in record types that are constructed by the expander to
725--       represent task and protected types (Is_Concurrent_Record_Type flag
726--       set). Points to the entity for the corresponding task type or the
727--       protected type.
728
729--    Corresponding_Discriminant (Node19)
730--       Defined in discriminants of a derived type, when the discriminant is
731--       used to constrain a discriminant of the parent type. Points to the
732--       corresponding discriminant in the parent type. Otherwise it is Empty.
733
734--    Corresponding_Equality (Node30)
735--       Defined in function entities for implicit inequality operators.
736--       Denotes the explicit or derived equality operation that creates
737--       the implicit inequality. Note that this field is not present in
738--       other function entities, only in implicit inequality routines,
739--       where Comes_From_Source is always False.
740
741--    Corresponding_Protected_Entry (Node18)
742--       Defined in subprogram bodies. Set for subprogram bodies that implement
743--       a protected type entry to point to the entity for the entry.
744
745--    Corresponding_Record_Type (Node18)
746--       Defined in protected and task types and subtypes. References the
747--       entity for the corresponding record type constructed by the expander
748--       (see Exp_Ch9). This type is used to represent values of the task type.
749
750--    Corresponding_Remote_Type (Node22)
751--       Defined in record types that describe the fat pointer structure for
752--       Remote_Access_To_Subprogram types. References the original access
753--       to subprogram type.
754
755--    CR_Discriminant (Node23)
756--       Defined in discriminants of concurrent types. Denotes the homologous
757--       discriminant of the corresponding record type. The CR_Discriminant is
758--       created at the same time as the discriminal, and used to replace
759--       occurrences of the discriminant within the type declaration.
760
761--    Current_Use_Clause (Node27)
762--       Defined in packages and in types. For packages, denotes the use
763--       package clause currently in scope that makes the package use_visible.
764--       For types, it denotes the use_type clause that makes the operators of
765--       the type visible. Used for more precise warning messages on redundant
766--       use clauses.
767
768--    Current_Value (Node9)
769--       Defined in all object entities. Set in E_Variable, E_Constant, formal
770--       parameters and E_Loop_Parameter entities if we have trackable current
771--       values. Set non-Empty if the (constant) current value of the variable
772--       is known, This value is valid only for references from the same
773--       sequential scope as the entity. The sequential scope of an entity
774--       includes the immediate scope and any contained scopes that are package
775--       specs, package bodies, blocks (at any nesting level) or statement
776--       sequences in IF or loop statements.
777--
778--       Another related use of this field is to record information about the
779--       value obtained from an IF or WHILE statement condition. If the IF or
780--       ELSIF or WHILE condition has the form "NOT {,NOT] OBJ RELOP VAL ",
781--       or OBJ [AND [THEN]] expr, where OBJ refers to an entity with a
782--       Current_Value field, RELOP is one of the six relational operators, and
783--       VAL is a compile-time known value then the Current_Value field of OBJ
784--       points to the N_If_Statement, N_Elsif_Part, or N_Iteration_Scheme node
785--       of the relevant construct, and the Condition field of this can be
786--       consulted to give information about the value of OBJ. For more details
787--       on this usage, see the procedure Exp_Util.Get_Current_Value_Condition.
788
789--    Debug_Info_Off (Flag166)
790--       Defined in all entities. Set if a pragma Suppress_Debug_Info applies
791--       to the entity, or if internal processing in the compiler determines
792--       that suppression of debug information is desirable. Note that this
793--       flag is only for use by the front end as part of the processing for
794--       determining if Needs_Debug_Info should be set. The backend should
795--       always test Needs_Debug_Info, it should never test Debug_Info_Off.
796
797--    Debug_Renaming_Link (Node25)
798--       Used to link the variable associated with a debug renaming declaration
799--       to the renamed entity. See Exp_Dbug.Debug_Renaming_Declaration for
800--       details of the use of this field.
801
802--    Declaration_Node (synthesized)
803--       Applies to all entities. Returns the tree node for the construct that
804--       declared the entity. Normally this is just the Parent of the entity.
805--       One exception arises with child units, where the parent of the entity
806--       is a selected component/defining program unit name. Another exception
807--       is that if the entity is an incomplete type that has been completed or
808--       a private type, then we obtain the declaration node denoted by the
809--       full type, i.e. the full type declaration node. Also note that for
810--       subprograms, this returns the {function,procedure}_specification, not
811--       the subprogram_declaration.
812
813--    Default_Aspect_Component_Value (Node19) [base type only]
814--       Defined in array types. Holds the static value specified in a
815--       Default_Component_Value aspect specification for the array type,
816--       or inherited on derivation.
817
818--    Default_Aspect_Value (Node19) [base type only]
819--       Defined in scalar types. Holds the static value specified in a
820--       Default_Value aspect specification for the type, or inherited
821--       on derivation.
822
823--    Default_Expr_Function (Node21)
824--       Defined in parameters. It holds the entity of the parameterless
825--       function that is built to evaluate the default expression if it is
826--       more complex than a simple identifier or literal. For the latter
827--       simple cases or if there is no default value, this field is Empty.
828
829--    Default_Expressions_Processed (Flag108)
830--       A flag in subprograms (functions, operators, procedures) and in
831--       entries and entry families used to indicate that default expressions
832--       have been processed and to avoid multiple calls to process the
833--       default expressions (see Freeze.Process_Default_Expressions), which
834--       would not only waste time, but also generate false error messages.
835
836--    Default_Init_Cond_Procedure (synthesized)
837--       Defined in all types. Set for private [sub]types subject to pragma
838--       Default_Initial_Condition, their corresponding full views and derived
839--       types with at least one parent subject to the pragma. Contains the
840--       entity of the procedure which takes a single argument of the given
841--       type and verifies the assumption of the pragma.
842--
843--       Note: the reason this is marked as a synthesized attribute is that the
844--       way this is stored is as an element of the Subprograms_For_Type field.
845
846--    Default_Value (Node20)
847--       Defined in formal parameters. Points to the node representing the
848--       expression for the default value for the parameter. Empty if the
849--       parameter has no default value (which is always the case for OUT
850--       and IN OUT parameters in the absence of errors).
851
852--    Delay_Cleanups (Flag114)
853--       Defined in entities that have finalization lists (subprograms
854--       blocks, and tasks). Set if there are pending generic body
855--       instantiations for the corresponding entity. If this flag is
856--       set, then generation of cleanup actions for the corresponding
857--       entity must be delayed, since the insertion of the generic body
858--       may affect cleanup generation (see Inline for further details).
859
860--    Delay_Subprogram_Descriptors (Flag50)
861--       Defined in entities for which exception subprogram descriptors
862--       are generated (subprograms, package declarations and package
863--       bodies). Defined if there are pending generic body instantiations
864--       for the corresponding entity. If this flag is set, then generation
865--       of the subprogram descriptor for the corresponding enities must
866--       be delayed, since the insertion of the generic body may add entries
867--       to the list of handlers.
868--
869--       Note: for subprograms, Delay_Subprogram_Descriptors is set if and
870--       only if Delay_Cleanups is set. But Delay_Cleanups can be set for a
871--       a block (in which case Delay_Subprogram_Descriptors is set for the
872--       containing subprogram). In addition Delay_Subprogram_Descriptors is
873--       set for a library level package declaration or body which contains
874--       delayed instantiations (in this case the descriptor refers to the
875--       enclosing elaboration procedure).
876
877--    Delta_Value (Ureal18)
878--       Defined in fixed and decimal types. Points to a universal real
879--       that holds value of delta for the type, as given in the declaration
880--       or as inherited by a subtype or derived type.
881
882--    Dependent_Instances (Elist8)
883--       Defined in packages that are instances. Holds list of instances
884--       of inner generics. Used to place freeze nodes for those instances
885--       after that of the current one, i.e. after the corresponding generic
886--       bodies.
887
888--    Depends_On_Private (Flag14)
889--       Defined in all type entities. Set if the type is private or if it
890--       depends on a private type.
891
892--    Derived_Type_Link (Node31)
893--       Defined in all type and subtype entries. Set in a base type if
894--       a derived type declaration is encountered which derives from
895--       this base type or one of its subtypes, and there are already
896--       primitive operations declared. In this case, it references the
897--       entity for the type declared by the derived type declaration.
898--       For example:
899--
900--          type R is ...
901--          subtype RS is R ...
902--          ...
903--          type G is new RS ...
904--
905--       In this case, if primitive operations have been declared for R, at
906--       the point of declaration of G, then the Derived_Type_Link of R is set
907--       to point to the entity for G. This is used to generate warnings for
908--       rep clauses that appear later on for R, which might result in an
909--       unexpected implicit conversion operation.
910--
911--       Note: if there is more than one such derived type, the link will point
912--       to the last one (this is only used in generating warning messages).
913
914--    Designated_Type (synthesized)
915--       Applies to access types. Returns the designated type. Differs from
916--       Directly_Designated_Type in that if the access type refers to an
917--       incomplete type, and the full type is available, then this full type
918--       is returned instead of the incomplete type.
919
920--    Digits_Value (Uint17)
921--       Defined in floating point types and subtypes and decimal types and
922--       subtypes. Contains the Digits value specified in the declaration.
923
924--    Direct_Primitive_Operations (Elist10)
925--       Defined in tagged types and subtypes (including synchronized types),
926--       in tagged private types and in tagged incomplete types. Element list
927--       of entities for primitive operations of the tagged type. Not defined
928--       in untagged types. In order to follow the C++ ABI, entities of
929--       primitives that come from source must be stored in this list in the
930--       order of their occurrence in the sources. For incomplete types the
931--       list is always empty.
932--       When expansion is disabled the corresponding record type of a
933--       synchronized type is not constructed. In that case, such types
934--       carry this attribute directly, for ASIS use.
935
936--    Directly_Designated_Type (Node20)
937--       Defined in access types. This field points to the type that is
938--       directly designated by the access type. In the case of an access
939--       type to an incomplete type, this field references the incomplete
940--       type. Directly_Designated_Type is typically used in implementing the
941--       static semantics of the language; in implementing dynamic semantics,
942--       we typically want the full view of the designated type. The function
943--       Designated_Type obtains this full type in the case of access to an
944--       incomplete type.
945
946--    Disable_Controlled (Flag253)
947--      Present in all entities. Set for a controlled type (Is_Controlled flag
948--      set) if the aspect Disable_Controlled is active for the type.
949
950--    Discard_Names (Flag88)
951--       Defined in types and exception entities. Set if pragma Discard_Names
952--       applies to the entity. It is also set for declarative regions and
953--       package specs for which a Discard_Names pragma with zero arguments
954--       has been encountered. The purpose of setting this flag is to be able
955--       to set the Discard_Names attribute on enumeration types declared
956--       after the pragma within the same declarative region. This flag is
957--       set to False if a Keep_Names pragma appears for an enumeration type.
958
959--    Discriminal (Node17)
960--       Defined in discriminants (Discriminant formal: GNAT's first
961--       coinage). The entity used as a formal parameter that corresponds
962--       to a discriminant. See section "Handling of Discriminants" for
963--       full details of the use of discriminals.
964
965--    Discriminal_Link (Node10)
966--       Defined in E_In_Parameter or E_Constant entities. For discriminals,
967--       points back to corresponding discriminant. For other entities, must
968--       remain Empty.
969
970--    Discriminant_Checking_Func (Node20)
971--       Defined in components. Points to the defining identifier of the
972--       function built by the expander returns a Boolean indicating whether
973--       the given record component exists for the current discriminant
974--       values.
975
976--    Discriminant_Constraint (Elist21)
977--       Defined in entities whose Has_Discriminants flag is set (concurrent
978--       types, subtypes, record types and subtypes, private types and
979--       subtypes, limited private types and subtypes and incomplete types).
980--       It is an error to reference the Discriminant_Constraint field if
981--       Has_Discriminants is False.
982--
983--       If the Is_Constrained flag is set, Discriminant_Constraint points
984--       to an element list containing the discriminant constraints in the
985--       same order in which the discriminants are declared.
986--
987--       If the Is_Constrained flag is not set but the discriminants of the
988--       unconstrained type have default initial values then this field
989--       points to an element list giving these default initial values in
990--       the same order in which the discriminants are declared. Note that
991--       in this case the entity cannot be a tagged record type, because
992--       discriminants in this case cannot have defaults.
993--
994--       If the entity is a tagged record implicit type, then this field is
995--       inherited from the first subtype (so that the itype is subtype
996--       conformant with its first subtype, which is needed when the first
997--       subtype overrides primitive operations inherited by the implicit
998--       base type).
999--
1000--       In all other cases Discriminant_Constraint contains the empty
1001--       Elist (ie it is initialized with a call to New_Elmt_List).
1002
1003--    Discriminant_Default_Value (Node20)
1004--       Defined in discriminants. Points to the node representing the
1005--       expression for the default value of the discriminant. Set to
1006--       Empty if the discriminant has no default value.
1007
1008--    Discriminant_Number (Uint15)
1009--       Defined in discriminants. Gives the ranking of a discriminant in
1010--       the list of discriminants of the type, i.e. a sequential integer
1011--       index starting at 1 and ranging up to number of discriminants.
1012
1013--    Dispatch_Table_Wrappers (Elist26) [implementation base type only]
1014--       Defined in E_Record_Type and E_Record_Subtype entities. Set in library
1015--       level tagged type entities if we are generating statically allocated
1016--       dispatch tables. Points to the list of dispatch table wrappers
1017--       associated with the tagged type. For an untagged record, contains
1018--       No_Elist.
1019
1020--    DTC_Entity (Node16)
1021--       Defined in function and procedure entities. Set to Empty unless
1022--       the subprogram is dispatching in which case it references the
1023--       Dispatch Table pointer Component. For regular Ada tagged this, this
1024--       is the _Tag component. For CPP_Class types and their descendants,
1025--       this points to the component entity in the record that holds the
1026--       Vtable pointer for the Vtable containing the entry referencing the
1027--       subprogram.
1028
1029--    DT_Entry_Count (Uint15)
1030--       Defined in E_Component entities. Only used for component marked
1031--       Is_Tag. Store the number of entries in the Vtable (or Dispatch Table)
1032
1033--    DT_Offset_To_Top_Func (Node25)
1034--       Defined in E_Component entities. Only used for component marked
1035--       Is_Tag. If present it stores the Offset_To_Top function used to
1036--       provide this value in tagged types whose ancestor has discriminants.
1037
1038--    DT_Position (Uint15)
1039--       Defined in function and procedure entities which are dispatching
1040--       (should not be referenced without first checking that flag
1041--       Is_Dispatching_Operation is True). Contains the offset into
1042--       the Vtable for the entry that references the subprogram.
1043
1044--    Ekind (Ekind)
1045--       Defined in all entities. Contains a value of the enumeration type
1046--       Entity_Kind declared in a subsequent section in this spec.
1047
1048--    Elaborate_Body_Desirable (Flag210)
1049--       Defined in package entities. Set if the elaboration circuitry detects
1050--       a case where there is a package body that modifies one or more visible
1051--       entities in the package spec and there is no explicit Elaborate_Body
1052--       pragma for the package. This information is passed on to the binder,
1053--       which attempts, but does not promise, to elaborate the body as close
1054--       to the spec as possible.
1055
1056--    Elaboration_Entity (Node13)
1057--       Defined in generic and non-generic package and subprogram entities.
1058--       This is a counter associated with the unit that is initially set to
1059--       zero, is incremented when an elaboration request for the unit is
1060--       made, and is decremented when a finalization request for the unit
1061--       is made. This is used for three purposes. First, it is used to
1062--       implement access before elaboration checks (the counter must be
1063--       non-zero to call a subprogram at elaboration time). Second, it is
1064--       used to guard against repeated execution of the elaboration code.
1065--       Third, it is used to ensure that the finalization code is executed
1066--       only after all clients have requested it.
1067--
1068--       Note that we always allocate this counter, and set this field, but
1069--       we do not always actually use it. It is only used if it is needed
1070--       for access before elaboration use (see Elaboration_Entity_Required
1071--       flag) or if either the spec or the body has elaboration code. If
1072--       neither of these two conditions holds, then the entity is still
1073--       allocated (since we don't know early enough whether or not there
1074--       is elaboration code), but is simply not used for any purpose.
1075
1076--    Elaboration_Entity_Required (Flag174)
1077--       Defined in generic and non-generic package and subprogram entities.
1078--       Set only if Elaboration_Entity is non-Empty to indicate that the
1079--       counter is required to be non-zero even if there is no other
1080--       elaboration code. This occurs when the Elaboration_Entity counter
1081--       is used for access before elaboration checks. If the counter is
1082--       only used to prevent multiple execution of the elaboration code,
1083--       then if there is no other elaboration code, obviously there is no
1084--       need to set the flag.
1085
1086--    Encapsulating_State (Node32)
1087--       Defined in abstract state, constant and variable entities. Contains
1088--       the entity of an ancestor state or a single concurrent type whose
1089--       refinement utilizes this item as a constituent.
1090
1091--    Enclosing_Scope (Node18)
1092--       Defined in labels. Denotes the innermost enclosing construct that
1093--       contains the label. Identical to the scope of the label, except for
1094--       labels declared in the body of an accept statement, in which case the
1095--       entry_name is the Enclosing_Scope. Used to validate goto's within
1096--       accept statements.
1097
1098--    Entry_Accepted (Flag152)
1099--       Defined in E_Entry and E_Entry_Family entities. Set if there is
1100--       at least one accept for this entry in the task body. Used to
1101--       generate warnings for missing accepts.
1102
1103--    Entry_Bodies_Array (Node19)
1104--       Defined in protected types for which Has_Entries is true.
1105--       This is the defining identifier for the array of entry body
1106--       action procedures and barrier functions used by the runtime to
1107--       execute the user code associated with each entry.
1108
1109--    Entry_Cancel_Parameter (Node23)
1110--       Defined in blocks. This only applies to a block statement for
1111--       which the Is_Asynchronous_Call_Block flag is set. It
1112--       contains the defining identifier of an object that must be
1113--       passed to the Cancel_Task_Entry_Call or Cancel_Protected_Entry_Call
1114--       call in the cleanup handler added to the block by
1115--       Exp_Ch7.Expand_Cleanup_Actions. This parameter is a Boolean
1116--       object for task entry calls and a Communications_Block object
1117--       in the case of protected entry calls. In both cases the objects
1118--       are declared in outer scopes to this block.
1119
1120--    Entry_Component (Node11)
1121--       Defined in formal parameters (in, in out and out parameters). Used
1122--       only for formals of entries. References the corresponding component
1123--       of the entry parameter record for the entry.
1124
1125--    Entry_Formal (Node16)
1126--       Defined in components of the record built to correspond to entry
1127--       parameters. This field points from the component to the formal. It
1128--       is the back pointer corresponding to Entry_Component.
1129
1130--    Entry_Index_Constant (Node18)
1131--       Defined in an entry index parameter. This is an identifier that
1132--       eventually becomes the name of a constant representing the index
1133--       of the entry family member whose entry body is being executed. Used
1134--       to expand references to the entry index specification identifier.
1135
1136--    Entry_Index_Type (synthesized)
1137--       Applies to an entry family. Denotes Etype of the subtype indication
1138--       in the entry declaration. Used to resolve the index expression in an
1139--       accept statement for a member of the family, and in the prefix of
1140--       'COUNT when it applies to a family member.
1141
1142--    Entry_Parameters_Type (Node15)
1143--       Defined in entries. Points to the access-to-record type that is
1144--       constructed by the expander to hold a reference to the parameter
1145--       values. This reference is manipulated (as an address) by the
1146--       tasking runtime. The designated record represents a packaging
1147--       up of the entry parameters (see Exp_Ch9.Expand_N_Entry_Declaration
1148--       for further details). Entry_Parameters_Type is Empty if the entry
1149--       has no parameters.
1150
1151--    Enumeration_Pos (Uint11)
1152--       Defined in enumeration literals. Contains the position number
1153--       corresponding to the value of the enumeration literal.
1154
1155--    Enumeration_Rep (Uint12)
1156--       Defined in enumeration literals. Contains the representation that
1157--       corresponds to the value of the enumeration literal. Note that
1158--       this is normally the same as Enumeration_Pos except in the presence
1159--       of representation clauses, where Pos will still represent the
1160--       position of the literal within the type and Rep will have be the
1161--       value given in the representation clause.
1162
1163--    Enumeration_Rep_Expr (Node22)
1164--       Defined in enumeration literals. Points to the expression in an
1165--       associated enumeration rep clause that provides the representation
1166--       value for this literal. Empty if no enumeration rep clause for this
1167--       literal (or if rep clause does not have an entry for this literal,
1168--       an error situation). This is also used to catch duplicate entries
1169--       for the same literal.
1170
1171--    Enum_Pos_To_Rep (Node23)
1172--       Defined in enumeration types (but not enumeration subtypes). Set to
1173--       Empty unless the enumeration type has a non-standard representation
1174--       (i.e. at least one literal has a representation value different from
1175--       its pos value). In this case, Enum_Pos_To_Rep is the entity for an
1176--       array constructed when the type is frozen that maps Pos values to
1177--       corresponding Rep values. The index type of this array is Natural,
1178--       and the component type is a suitable integer type that holds the
1179--       full range of representation values.
1180
1181--    Equivalent_Type (Node18)
1182--       Defined in class wide types and subtypes, access to protected
1183--       subprogram types, and in exception types. For a classwide type, it
1184--       is always Empty. For a class wide subtype, it points to an entity
1185--       created by the expander which gives the backend an understandable
1186--       equivalent of the class subtype with a known size (given by an
1187--       initial value). See Exp_Util.Expand_Class_Wide_Subtype for further
1188--       details. For E_Exception_Type, this points to the record containing
1189--       the data necessary to represent exceptions (for further details, see
1190--       System.Standard_Library. For access_to_protected subprograms, it
1191--       denotes a record that holds pointers to the operation and to the
1192--       protected object. For remote Access_To_Subprogram types, it denotes
1193--       the record that is the fat pointer representation of an RAST.
1194
1195--    Esize (Uint12)
1196--       Defined in all types and subtypes, and also for components, constants,
1197--       and variables, including exceptions where it refers to the static data
1198--       allocated for an exception. Contains the Object_Size of the type or of
1199--       the object. A value of zero indicates that the value is not yet known.
1200--
1201--       For the case of components where a component clause is present, the
1202--       value is the value from the component clause, which must be non-
1203--       negative (but may be zero, which is acceptable for the case of
1204--       a type with only one possible value). It is also possible for Esize
1205--       of a component to be set without a component clause defined, which
1206--       means that the component size is specified, but not the position.
1207--       See also RM_Size and the section on "Handling of Type'Size Values".
1208--       During backend processing, the value is back annotated for all zero
1209--       values, so that after the call to the backend, the value is set.
1210
1211--    Etype (Node5)
1212--       Defined in all entities. Represents the type of the entity, which
1213--       is itself another entity. For a type entity, points to the parent
1214--       type for a derived type, or if the type is not derived, points to
1215--       itself. For a subtype entity, Etype points to the base type. For
1216--       a class wide type, points to the corresponding specific type. For a
1217--       subprogram or subprogram type, Etype has the return type of a function
1218--       or is set to Standard_Void_Type to represent a procedure. The Etype
1219--       field of a package is also set to Standard_Void_Type.
1220--
1221--       Note one obscure case: for pragma Default_Storage_Pool (null), the
1222--       Etype of the N_Null node is Empty.
1223
1224--    Extra_Accessibility (Node13)
1225--       Defined in formal parameters in the non-generic case. Normally Empty,
1226--       but if expansion is active, and a parameter is one for which a
1227--       dynamic accessibility check is required, then an extra formal of type
1228--       Natural is created (see description of field Extra_Formal), and the
1229--       Extra_Accessibility field of the formal parameter points to the entity
1230--       for this extra formal. Also defined in variables when compiling
1231--       receiving stubs. In this case, a non Empty value means that this
1232--       variable's accessibility depth has been transmitted by the caller and
1233--       must be retrieved through the entity designed by this field instead of
1234--       being computed.
1235
1236--    Extra_Accessibility_Of_Result (Node19)
1237--       Defined in (non-generic) Function, Operator, and Subprogram_Type
1238--       entities. Normally Empty, but if expansion is active, and a function
1239--       is one for which "the accessibility level of the result ... determined
1240--       by the point of call" (AI05-0234) is needed, then an extra formal of
1241--       subtype Natural is created (see description of field Extra_Formal),
1242--       and the Extra_Accessibility_Of_Result field of the function points to
1243--       the entity for this extra formal.
1244
1245--    Extra_Constrained (Node23)
1246--       Defined in formal parameters in the non-generic case. Normally Empty,
1247--       but if expansion is active and a parameter is one for which a dynamic
1248--       indication of its constrained status is required, then an extra formal
1249--       of type Boolean is created (see description of field Extra_Formal),
1250--       and the Extra_Constrained field of the formal parameter points to the
1251--       entity for this extra formal. Also defined in variables when compiling
1252--       receiving stubs. In this case, a non empty value means that this
1253--       variable's constrained status has been transmitted by the caller and
1254--       must be retrieved through the entity designed by this field instead of
1255--       being computed.
1256
1257--    Extra_Formal (Node15)
1258--       Defined in formal parameters in the non-generic case. Certain
1259--       parameters require extra implicit information to be passed (e.g. the
1260--       flag indicating if an unconstrained variant record argument is
1261--       constrained, and the accessibility level for access parameters). See
1262--       description of Extra_Constrained, Extra_Accessibility fields for
1263--       further details. Extra formal parameters are constructed to represent
1264--       these values, and chained to the end of the list of formals using the
1265--       Extra_Formal field (i.e. the Extra_Formal field of the last "real"
1266--       formal points to the first extra formal, and the Extra_Formal field of
1267--       each extra formal points to the next one, with Empty indicating the
1268--       end of the list of extra formals). Another case of Extra_Formal arises
1269--       in connection with unnesting of subprograms, where the ARECnF formal
1270--       that represents an activation record pointer is an extra formal.
1271
1272--    Extra_Formals (Node28)
1273--       Applies to subprograms and subprogram types, and also to entries
1274--       and entry families. Returns first extra formal of the subprogram
1275--       or entry. Returns Empty if there are no extra formals.
1276
1277--    Finalization_Master (Node23) [root type only]
1278--       Defined in access-to-controlled or access-to-class-wide types. The
1279--       field contains the entity of the finalization master which handles
1280--       dynamically allocated controlled objects referenced by the access
1281--       type. Empty for access-to-subprogram types. Empty for access types
1282--       whose designated type does not need finalization actions.
1283
1284--    Finalize_Storage_Only (Flag158) [base type only]
1285--       Defined in all types. Set on direct controlled types to which a
1286--       valid Finalize_Storage_Only pragma applies. This flag is also set on
1287--       composite types when they have at least one controlled component and
1288--       all their controlled components are Finalize_Storage_Only. It is also
1289--       inherited by type derivation except for direct controlled types where
1290--       the Finalize_Storage_Only pragma is required at each level of
1291--       derivation.
1292
1293--    Finalizer (Node28)
1294--       Applies to package declarations and bodies. Contains the entity of the
1295--       library-level program which finalizes all package-level controlled
1296--       objects.
1297
1298--    First_Component (synthesized)
1299--       Applies to incomplete, private, protected, record and task types.
1300--       Returns the first component by following the chain of declared
1301--       entities for the type a component is found (one with an Ekind of
1302--       E_Component). The discriminants are skipped. If the record is null,
1303--       then Empty is returned.
1304
1305--    First_Component_Or_Discriminant (synthesized)
1306--       Similar to First_Component, but discriminants are not skipped, so will
1307--       find the first discriminant if discriminants are present.
1308
1309--    First_Entity (Node17)
1310--       Defined in all entities which act as scopes to which a list of
1311--       associated entities is attached (blocks, class subtypes and types,
1312--       entries, functions, loops, packages, procedures, protected objects,
1313--       record types and subtypes, private types, task types and subtypes).
1314--       Points to a list of associated entities using the Next_Entity field
1315--       as a chain pointer with Empty marking the end of the list.
1316
1317--    First_Exit_Statement (Node8)
1318--       Defined in E_Loop entity. The exit statements for a loop are chained
1319--       (in reverse order of appearance) using this field to point to the
1320--       first entry in the chain (last exit statement in the loop). The
1321--       entries are chained through the Next_Exit_Statement field of the
1322--       N_Exit_Statement node with Empty marking the end of the list.
1323
1324--    First_Formal (synthesized)
1325--       Applies to subprograms and subprogram types, and also to entries
1326--       and entry families. Returns first formal of the subprogram or entry.
1327--       The formals are the first entities declared in a subprogram or in
1328--       a subprogram type (the designated type of an Access_To_Subprogram
1329--       definition) or in an entry.
1330
1331--    First_Formal_With_Extras (synthesized)
1332--       Applies to subprograms and subprogram types, and also in entries
1333--       and entry families. Returns first formal of the subprogram or entry.
1334--       Returns Empty if there are no formals. The list returned includes
1335--       all the extra formals (see description of Extra_Formals field).
1336
1337--    First_Index (Node17)
1338--       Defined in array types and subtypes. By introducing implicit subtypes
1339--       for the index constraints, we have the same structure for constrained
1340--       and unconstrained arrays, subtype marks and discrete ranges are
1341--       both represented by a subtype. This function returns the tree node
1342--       corresponding to an occurrence of the first index (NOT the entity for
1343--       the type). Subsequent indices are obtained using Next_Index. Note that
1344--       this field is defined for the case of string literal subtypes, but is
1345--       always Empty.
1346
1347--    First_Literal (Node17)
1348--       Defined in all enumeration types, including character and boolean
1349--       types. This field points to the first enumeration literal entity
1350--       for the type (i.e. it is set to First (Literals (N)) where N is
1351--       the enumeration type definition node. A special case occurs with
1352--       standard character and wide character types, where this field is
1353--       Empty, since there are no enumeration literal lists in these cases.
1354--       Note that this field is set in enumeration subtypes, but it still
1355--       points to the first literal of the base type in this case.
1356
1357--    First_Private_Entity (Node16)
1358--       Defined in all entities containing private parts (packages, protected
1359--       types and subtypes, task types and subtypes). The entities on the
1360--       entity chain are in order of declaration, so the entries for private
1361--       entities are at the end of the chain. This field points to the first
1362--       entity for the private part. It is Empty if there are no entities
1363--       declared in the private part or if there is no private part.
1364
1365--    First_Rep_Item (Node6)
1366--       Defined in all entities. If non-empty, points to a linked list of
1367--       representation pragmas nodes and representation clause nodes that
1368--       apply to the entity, linked using Next_Rep_Item, with Empty marking
1369--       the end of the list. In the case of derived types and subtypes, the
1370--       new entity inherits the chain at the point of declaration. This means
1371--       that it is possible to have multiple instances of the same kind of rep
1372--       item on the chain, in which case it is the first one that applies to
1373--       the entity.
1374--
1375--       Note: pragmas that can apply to more than one overloadable entity,
1376--       (Convention, Interface, Inline, Inline_Always, Import, Export,
1377--       External) are never present on this chain when they apply to
1378--       overloadable entities, since it is impossible for a given pragma
1379--       to be on more than one chain at a time.
1380--
1381--       For most representation items, the representation information is
1382--       reflected in other fields and flags in the entity. For example if a
1383--       record representation clause is present, the component entities
1384--       reflect the specified information. However, there are some items that
1385--       are only reflected in the chain. These include:
1386--
1387--          Machine_Attribute pragma
1388--          Link_Alias pragma
1389--          Linker_Constructor pragma
1390--          Linker_Destructor pragma
1391--          Weak_External pragma
1392--          Thread_Local_Storage pragma
1393--
1394--       If any of these items are present, then the flag Has_Gigi_Rep_Item is
1395--       set, indicating that the backend should search the chain.
1396--
1397--       Other representation items are included in the chain so that error
1398--       messages can easily locate the relevant nodes for posting errors.
1399--       Note in particular that size clauses are defined only for this
1400--       purpose, and should only be accessed if Has_Size_Clause is set.
1401
1402--    Float_Rep (Uint10)
1403--       Defined in floating-point entities. Contains a value of type
1404--       Float_Rep_Kind. Together with the Digits_Value uniquely defines
1405--       the floating-point representation to be used.
1406
1407--    Freeze_Node (Node7)
1408--       Defined in all entities. If there is an associated freeze node for the
1409--       entity, this field references this freeze node. If no freeze node is
1410--       associated with the entity, then this field is Empty. See package
1411--       Freeze for further details.
1412
1413--    From_Limited_With (Flag159)
1414--       Defined in abtract states, package and type entities. Set to True when
1415--       the related entity is generated by the expansion of a limited with
1416--       clause. Such an entity is said to be a "shadow" - it acts as the
1417--       abstract view of a state or variable or as the incomplete view of a
1418--       type by inheriting relevant attributes from the said entity.
1419
1420--    Full_View (Node11)
1421--       Defined in all type and subtype entities and in deferred constants.
1422--       References the entity for the corresponding full type or constant
1423--       declaration. For all types other than private and incomplete types,
1424--       this field always contains Empty. If an incomplete type E1 is
1425--       completed by a private type E2 whose full type declaration entity is
1426--       E3 then the full view of E1 is E2, and the full view of E2 is E3. See
1427--       also Underlying_Type.
1428
1429--    Generic_Homonym (Node11)
1430--       Defined in generic packages. The generic homonym is the entity of
1431--       a renaming declaration inserted in every generic unit. It is used
1432--       to resolve the name of a local entity that is given by a qualified
1433--       name, when the generic entity itself is hidden by a local name.
1434
1435--    Generic_Renamings (Elist23)
1436--       Defined in package and subprogram instances. Holds mapping that
1437--       associates generic parameters with the corresponding instances, in
1438--       those cases where the instance is an entity.
1439
1440--    Handler_Records (List10)
1441--       Defined in subprogram and package entities. Points to a list of
1442--       identifiers referencing the handler record entities for the
1443--       corresponding unit.
1444
1445--    Has_Aliased_Components (Flag135) [implementation base type only]
1446--       Defined in array type entities. Indicates that the component type
1447--       of the array is aliased. Should this also be set for records to
1448--       indicate that at least one component is aliased (see processing in
1449--       Sem_Prag.Process_Atomic_Independent_Shared_Volatile???)
1450
1451--    Has_Alignment_Clause (Flag46)
1452--       Defined in all type entities and objects. Indicates if an alignment
1453--       clause has been given for the entity. If set, then Alignment_Clause
1454--       returns the N_Attribute_Definition node for the alignment attribute
1455--       definition clause. Note that it is possible for this flag to be False
1456--       even when Alignment_Clause returns non_Empty (this happens in the case
1457--       of derived type declarations).
1458
1459--    Has_All_Calls_Remote (Flag79)
1460--       Defined in all library unit entities. Set if the library unit has an
1461--       All_Calls_Remote pragma. Note that such entities must also be RCI
1462--       entities, so the flag Is_Remote_Call_Interface will always be set if
1463--       this flag is set.
1464
1465--    Has_Atomic_Components (Flag86) [implementation base type only]
1466--       Defined in all types and objects. Set only for an array type or
1467--       an array object if a valid pragma Atomic_Components applies to the
1468--       type or object. Note that in the case of an object, this flag is
1469--       only set on the object if there was an explicit pragma for the
1470--       object. In other words, the proper test for whether an object has
1471--       atomic components is to see if either the object or its base type
1472--       has this flag set. Note that in the case of a type, the pragma will
1473--       be chained to the rep item chain of the first subtype in the usual
1474--       manner.
1475
1476--    Has_Attach_Handler (synthesized)
1477--       Applies to record types that are constructed by the expander to
1478--       represent protected types. Returns True if there is at least one
1479--       Attach_Handler pragma in the corresponding specification.
1480
1481--    Has_Biased_Representation (Flag139)
1482--       Defined in discrete types (where it applies to the type'size value),
1483--       and to objects (both stand-alone and components), where it applies to
1484--       the size of the object from a size or record component clause. In
1485--       all cases it indicates that the size in question is smaller than
1486--       would normally be required, but that the size requirement can be
1487--       satisfied by using a biased representation, in which stored values
1488--       have the low bound (Expr_Value (Type_Low_Bound (T)) subtracted to
1489--       reduce the required size. For example, a type with a range of 1..2
1490--       takes one bit, using 0 to represent 1 and 1 to represent 2.
1491--
1492--       Note that in the object and component cases, the flag is only set if
1493--       the type is unbiased, but the object specifies a smaller size than the
1494--       size of the type, forcing biased representation for the object, but
1495--       the subtype is still an unbiased type.
1496
1497--    Has_Completion (Flag26)
1498--       Defined in all entities that require a completion (functions,
1499--       procedures, private types, limited private types, incomplete types,
1500--       constants and packages that require a body). The flag is set if the
1501--       completion has been encountered and analyzed.
1502
1503--    Has_Completion_In_Body (Flag71)
1504--       Defined in all entities for types and subtypes. Set only in "Taft
1505--       amendment types" (incomplete types whose full declaration appears in
1506--       the package body).
1507
1508--    Has_Complex_Representation (Flag140) [implementation base type only]
1509--       Defined in all type entities. Set only for a record base type to
1510--       which a valid pragma Complex_Representation applies.
1511
1512--    Has_Component_Size_Clause (Flag68) [implementation base type only]
1513--       Defined in all type entities. Set if a component size clause is
1514--       Defined for the given type. Note that this flag can be False even
1515--       if Component_Size is non-zero (happens in the case of derived types).
1516
1517--    Has_Constrained_Partial_View (Flag187)
1518--       Defined in private type and their completions, when the private
1519--       type has no discriminants and the full view has discriminants with
1520--       defaults. In Ada 2005 heap-allocated objects of such types are not
1521--       constrained, and can change their discriminants with full assignment.
1522--
1523--       Ada 2012 has an additional rule (3.3. (23/10.3)) concerning objects
1524--       declared in a generic package body. Objects whose type is an untagged
1525--       generic formal private type are considered to have a constrained
1526--       partial view. The predicate Object_Type_Has_Constrained_Partial_View
1527--       in sem_aux is used to test for this case.
1528
1529--    Has_Contiguous_Rep (Flag181)
1530--       Defined in enumeration types. Set if the type as a representation
1531--       clause whose entries are successive integers.
1532
1533--    Has_Controlled_Component (Flag43) [base type only]
1534--       Defined in all type and subtype entities. Set only for composite type
1535--       entities which contain a component that either is a controlled type,
1536--       or itself contains controlled component (i.e. either Is_Controlled or
1537--       Has_Controlled_Component is set for at least one component).
1538
1539--    Has_Controlling_Result (Flag98)
1540--       Defined in E_Function entities. Set if the function is a primitive
1541--       function of a tagged type which can dispatch on result.
1542
1543--    Has_Convention_Pragma (Flag119)
1544--       Defined in all entities. Set for an entity for which a valid pragma
1545--       Convention, Import, or Export has been given. Used to prevent more
1546--       than one such pragma appearing for a given entity (RM B.1(45)).
1547
1548--    Has_Default_Aspect (Flag39) [base type only]
1549--       Defined in entities for types and subtypes, set for scalar types with
1550--       a Default_Value aspect and array types with a Default_Component_Value
1551--       aspect. If this flag is set, then a corresponding aspect specification
1552--       node will be present on the rep item chain for the entity. For a
1553--       derived type that inherits a default from its ancestor, the default
1554--       value is set, but it may be overridden by an aspect declaration on
1555--       type derivation.
1556
1557--    Has_Default_Init_Cond (Flag3) [base type only]
1558--       Defined in all type entities. Set if pragma Default_Initial_Condition
1559--       applies to a private type and by extension to its full view. This flag
1560--       is mutually exclusive with flag Has_Inherited_Default_Init_Cond.
1561
1562--    Has_Delayed_Aspects (Flag200)
1563--      Defined in all entities. Set if the Rep_Item chain for the entity has
1564--      one or more N_Aspect_Definition nodes chained which are not to be
1565--      evaluated till the freeze point. The aspect definition expression
1566--      clause has been preanalyzed to get visibility at the point of use,
1567--      but no other action has been taken.
1568
1569--    Has_Delayed_Freeze (Flag18)
1570--       Defined in all entities. Set to indicate that an explicit freeze
1571--       node must be generated for the entity at its freezing point. See
1572--       separate section ("Delayed Freezing and Elaboration") for details.
1573
1574--    Has_Delayed_Rep_Aspects (Flag261)
1575--       Defined in all types and subtypes. This flag is set if there is at
1576--       least one aspect for a representation characteristic that has to be
1577--       delayed and is one of the characteristics that may be inherited by
1578--       types derived from this type if not overridden. If this flag is set,
1579--       then types derived from this type have May_Inherit_Delayed_Rep_Aspects
1580--       set, signalling that Freeze.Inherit_Delayed_Rep_Aspects must be called
1581--       at the freeze point of the derived type.
1582
1583--    Has_Discriminants (Flag5)
1584--       Defined in all types and subtypes. For types that are allowed to have
1585--       discriminants (record types and subtypes, task types and subtypes,
1586--       protected types and subtypes, private types, limited private types,
1587--       and incomplete types), indicates if the corresponding type or subtype
1588--       has a known discriminant part. Always false for all other types.
1589
1590--    Has_Dispatch_Table (Flag220)
1591--       Defined in E_Record_Types that are tagged. Set to indicate that the
1592--       corresponding dispatch table is already built. This flag is used to
1593--       avoid duplicate construction of library level dispatch tables (because
1594--       the declaration of library level objects cause premature construction
1595--       of the table); otherwise the code that builds the table is added at
1596--       the end of the list of declarations of the package.
1597
1598--    Has_Dynamic_Predicate_Aspect (Flag258)
1599--       Defined in all types and subtypes. Set if a Dynamic_Predicate aspect
1600--       was explicitly applied to the type. Generally we treat predicates as
1601--       static if possible, regardless of whether they are specified using
1602--       Predicate, Static_Predicate, or Dynamic_Predicate. And if a predicate
1603--       can be treated as static (i.e. its expression is predicate-static),
1604--       then the flag Has_Static_Predicate will be set True. But there are
1605--       cases where legality is affected by the presence of an explicit
1606--       Dynamic_Predicate aspect. For example, even if a predicate looks
1607--       static, you can't use it in a case statement if there is an explicit
1608--       Dynamic_Predicate aspect specified. So test Has_Static_Predicate if
1609--       you just want to know if the predicate can be evaluated statically,
1610--       but test Has_Dynamic_Predicate_Aspect to enforce legality rules about
1611--       the use of dynamic predicates.
1612
1613--    Has_Entries (synthesized)
1614--       Applies to concurrent types. True if any entries are declared
1615--       within the task or protected definition for the type.
1616
1617--    Has_Enumeration_Rep_Clause (Flag66)
1618--       Defined in enumeration types. Set if an enumeration representation
1619--       clause has been given for this enumeration type. Used to prevent more
1620--       than one enumeration representation clause for a given type. Note
1621--       that this does not imply a representation with holes, since the rep
1622--       clause may merely confirm the default 0..N representation.
1623
1624--    Has_Exit (Flag47)
1625--       Defined in loop entities. Set if the loop contains an exit statement.
1626
1627--    Has_Expanded_Contract (Flag240)
1628--       Defined in functions, procedures, entries, and entry families. Set
1629--       when a subprogram has a N_Contract node that has been expanded. The
1630--       flag prevents double expansion of a contract when a construct is
1631--       rewritten into something else and subsequently reanalyzed/expanded.
1632
1633--    Has_Foreign_Convention (synthesized)
1634--       Applies to all entities. Determines if the Convention for the
1635--       entity is a foreign convention (i.e. is other than Convention_Ada,
1636--       Convention_Intrinsic, Convention_Entry or Convention_Protected).
1637
1638--    Has_Forward_Instantiation (Flag175)
1639--       Defined in package entities. Set for packages that instantiate local
1640--       generic entities before the corresponding generic body has been seen.
1641--       If a package has a forward instantiation, we cannot inline subprograms
1642--       appearing in the same package because the placement requirements of
1643--       the instance will conflict with the linear elaboration of front-end
1644--       inlining.
1645
1646--    Has_Fully_Qualified_Name (Flag173)
1647--       Defined in all entities. Set if the name in the Chars field has been
1648--       replaced by the fully qualified name, as used for debug output. See
1649--       Exp_Dbug for a full description of the use of this flag and also the
1650--       related flag Has_Qualified_Name.
1651
1652--    Has_Gigi_Rep_Item (Flag82)
1653--       Defined in all entities. Set if the rep item chain (referenced by
1654--       First_Rep_Item and linked through the Next_Rep_Item chain) contains a
1655--       representation item that needs to be specially processed by the back
1656--       end, i.e. one of the following items:
1657--
1658--          Machine_Attribute pragma
1659--          Linker_Alias pragma
1660--          Linker_Constructor pragma
1661--          Linker_Destructor pragma
1662--          Weak_External pragma
1663--          Thread_Local_Storage pragma
1664--
1665--       If this flag is set, then the backend should scan the rep item chain
1666--       to process any of these items that appear. At least one such item will
1667--       be present.
1668--
1669--    Has_Homonym (Flag56)
1670--       Defined in all entities. Set if an entity has a homonym in the same
1671--       scope. Used by the backend to generate unique names for all entities.
1672
1673--    Has_Implicit_Dereference (Flag251)
1674--       Defined in types and discriminants. Set if the type has an aspect
1675--       Implicit_Dereference. Set also on the discriminant named in the aspect
1676--       clause, to simplify type resolution.
1677
1678--    Has_Independent_Components (Flag34) [implementation base type only]
1679--       Defined in all types and objects. Set only for a record type or an
1680--       array type or array object if a valid pragma Independent_Components
1681--       applies to the type or object. Note that in the case of an object,
1682--       this flag is only set on the object if there was an explicit pragma
1683--       for the object. In other words, the proper test for whether an object
1684--       has independent components is to see if either the object or its base
1685--       type has this flag set. Note that in the case of a type, the pragma
1686--       will be chained to the rep item chain of the first subtype in the
1687--       usual manner.
1688
1689--    Has_Inheritable_Invariants (Flag248)
1690--       Defined in all type entities. Set in private types from which one
1691--       or more Invariant'Class aspects will be inherited if a another type is
1692--       derived from the type (i.e. those types which have an Invariant'Class
1693--       aspect, or which inherit one or more Invariant'Class aspects). Also
1694--       set in the corresponding full types. Note that it might be the full
1695--       type which has inheritable invariants, and in this case the flag will
1696--       also be set in the private type.
1697
1698--    Has_Inherited_Default_Init_Cond (Flag133) [base type only]
1699--       Defined in all type entities. Set when a derived type inherits pragma
1700--       Default_Initial_Condition from its parent type. This flag is mutually
1701--       exclusive with flag Has_Default_Init_Cond.
1702
1703--    Has_Initial_Value (Flag219)
1704--       Defined in entities for variables and out parameters. Set if there
1705--       is an explicit initial value expression in the declaration of the
1706--       variable. Note that this is set only if this initial value is
1707--       explicit, it is not set for the case of implicit initialization
1708--       of access types or controlled types. Always set to False for out
1709--       parameters. Also defined in entities for in and in-out parameters,
1710--       but always false in these cases.
1711
1712--    Has_Interrupt_Handler (synthesized)
1713--       Applies to all protected type entities. Set if the protected type
1714--       definition contains at least one procedure to which a pragma
1715--       Interrupt_Handler applies.
1716
1717--    Has_Invariants (Flag232)
1718--       Defined in all type entities and in subprogram entities. Set in
1719--       private types if an Invariant or Invariant'Class aspect applies to the
1720--       type, or if the type inherits one or more Invariant'Class aspects.
1721--       Also set in the corresponding full type. Note: if this flag is set
1722--       True, then usually the Invariant_Procedure attribute is set once the
1723--       type is frozen, however this may not be true in some error situations.
1724--       Note that it might be the full type which has inheritable invariants,
1725--       and then the flag will also be set in the private type.
1726
1727--    Has_Loop_Entry_Attributes (Flag260)
1728--       Defined in E_Loop entities. Set when the loop is subject to at least
1729--       one attribute 'Loop_Entry. The flag also implies that the loop has
1730--       already been transformed. See Expand_Loop_Entry_Attribute for details.
1731
1732--    Has_Machine_Radix_Clause (Flag83)
1733--       Defined in decimal types and subtypes, set if a Machine_Radix
1734--       representation clause is present. This flag is used to detect
1735--       the error of multiple machine radix clauses for a single type.
1736
1737--    Has_Master_Entity (Flag21)
1738--       Defined in entities that can appear in the scope stack (see spec
1739--       of Sem). It is set if a task master entity (_master) has been
1740--       declared and initialized in the corresponding scope.
1741
1742--    Has_Missing_Return (Flag142)
1743--       Defined in functions and generic functions. Set if there is one or
1744--       more missing return statements in the function. This is used to
1745--       control wrapping of the body in Exp_Ch6 to ensure that the program
1746--       error exception is correctly raised in this case at runtime.
1747
1748--    Has_Nested_Block_With_Handler (Flag101)
1749--       Defined in scope entities. Set if there is a nested block within the
1750--       scope that has an exception handler and the two scopes are in the
1751--       same procedure. This is used by the backend for controlling certain
1752--       optimizations to ensure that they are consistent with exceptions.
1753--       See documentation in backend for further details.
1754
1755--    Has_Nested_Subprogram (Flag282)
1756--      Defined in subprogram entities. Set for a subprogram which contains at
1757--      least one nested subprogram.
1758
1759--    Has_Non_Limited_View (synth)
1760--       Defined in E_Incomplete_Type, E_Incomplete_Subtype, E_Class_Wide_Type,
1761--       E_Abstract_State entities. True if their Non_Limited_View attribute
1762--       is present.
1763
1764--    Has_Non_Null_Visible_Refinement (synth)
1765--       Defined in E_Abstract_State entities. True if the state has a visible
1766--       refinement of at least one variable or state constituent as expressed
1767--       in aspect/pragma Refined_State.
1768
1769--    Has_Non_Standard_Rep (Flag75) [implementation base type only]
1770--       Defined in all type entities. Set when some representation clause
1771--       or pragma causes the representation of the item to be significantly
1772--       modified. In this category are changes of small or radix for a
1773--       fixed-point type, change of component size for an array, and record
1774--       or enumeration representation clauses, as well as packed pragmas.
1775--       All other representation clauses (e.g. Size and Alignment clauses)
1776--       are not considered to be significant since they do not affect
1777--       stored bit patterns.
1778
1779--    Has_Null_Abstract_State (synth)
1780--       Defined in package entities. True if the package is subject to a null
1781--       Abstract_State aspect/pragma.
1782
1783--    Has_Null_Visible_Refinement (synth)
1784--       Defined in E_Abstract_State entities. True if the state has a visible
1785--       null refinement as expressed in aspect/pragma Refined_State.
1786
1787--    Has_Object_Size_Clause (Flag172)
1788--       Defined in entities for types and subtypes. Set if an Object_Size
1789--       clause has been processed for the type Used to prevent multiple
1790--       Object_Size clauses for a given entity.
1791
1792--    Has_Out_Or_In_Out_Parameter (Flag110)
1793--       Present in subprograms, generic subprograms, entries, and entry
1794--       families. Set if they have at least one OUT or IN OUT parameter
1795--       (allowed for functions only in Ada 2012).
1796
1797--    Has_Per_Object_Constraint (Flag154)
1798--       Defined in E_Component entities. Set if the subtype of the component
1799--       has a per object constraint. Per object constraints result from the
1800--       following situations :
1801--
1802--       1. N_Attribute_Reference - when the prefix is the enclosing type and
1803--          the attribute is Access.
1804--       2. N_Discriminant_Association - when the expression uses the
1805--          discriminant of the enclosing type.
1806--       3. N_Index_Or_Discriminant_Constraint - when at least one of the
1807--          individual constraints is a per object constraint.
1808--       4. N_Range - when the lower or upper bound uses the discriminant of
1809--          the enclosing type.
1810--       5. N_Range_Constraint - when the range expression uses the
1811--          discriminant of the enclosing type.
1812
1813--    Has_Pragma_Controlled (Flag27) [implementation base type only]
1814--       Defined in access type entities. It is set if a pragma Controlled
1815--       applies to the access type.
1816
1817--    Has_Pragma_Elaborate_Body (Flag150)
1818--       Defined in all entities. Set in compilation unit entities if a
1819--       pragma Elaborate_Body applies to the compilation unit.
1820
1821--    Has_Pragma_Inline (Flag157)
1822--       Defined in all entities. Set for functions and procedures for which a
1823--       pragma Inline or Inline_Always applies to the subprogram. Note that
1824--       this flag can be set even if Is_Inlined is not set. This happens for
1825--       pragma Inline (if Inline_Active is False). In other words, the flag
1826--       Has_Pragma_Inline represents the formal semantic status, and is used
1827--       for checking semantic correctness. The flag Is_Inlined indicates
1828--       whether inlining is actually active for the entity.
1829
1830--    Has_Pragma_Inline_Always (Flag230)
1831--       Defined in all entities. Set for functions and procedures for which a
1832--       pragma Inline_Always applies. Note that if this flag is set, the flag
1833--       Has_Pragma_Inline is also set.
1834
1835--    Has_Pragma_No_Inline (Flag201)
1836--       Defined in all entities. Set for functions and procedures for which a
1837--       pragma No_Inline applies. Note that if this flag is set, the flag
1838--       Has_Pragma_Inline_Always cannot be set.
1839
1840--    Has_Pragma_Ordered (Flag198) [implementation base type only]
1841--       Defined in entities for enumeration types. If set indicates that a
1842--       valid pragma Ordered was given for the type. This flag is inherited
1843--       by derived enumeration types. We don't need to distinguish the derived
1844--       case since we allow multiple occurrences of this pragma anyway.
1845
1846--    Has_Pragma_Pack (Flag121) [implementation base type only]
1847--       Defined in array and record type entities. If set, indicates that a
1848--       valid pragma Pack was given for the type. Note that this flag is not
1849--       inherited by derived type. See also the Is_Packed flag.
1850
1851--    Has_Pragma_Preelab_Init (Flag221)
1852--       Defined in type and subtype entities. If set indicates that a valid
1853--       pragma Preelaborable_Initialization applies to the type.
1854
1855--    Has_Pragma_Pure (Flag203)
1856--       Defined in all entities. If set, indicates that a valid pragma Pure
1857--       was given for the entity. In some cases, we need to test whether
1858--       Is_Pure was explicitly set using this pragma.
1859
1860--    Has_Pragma_Pure_Function (Flag179)
1861--       Defined in all entities. If set, indicates that a valid pragma
1862--       Pure_Function was given for the entity. In some cases, we need to test
1863--       whether Is_Pure was explicitly set using this pragma. We also set
1864--       this flag for some internal entities that we know should be treated
1865--       as pure for optimization purposes.
1866
1867--    Has_Pragma_Thread_Local_Storage (Flag169)
1868--       Defined in all entities. If set, indicates that a valid pragma
1869--       Thread_Local_Storage was given for the entity.
1870
1871--    Has_Pragma_Unmodified (Flag233)
1872--       Defined in all entities. Can only be set for variables (E_Variable,
1873--       E_Out_Parameter, E_In_Out_Parameter). Set if a valid pragma Unmodified
1874--       applies to the variable, indicating that no warning should be given
1875--       if the entity is never modified. Note that clients should generally
1876--       not test this flag directly, but instead use function Has_Unmodified.
1877
1878--    Has_Pragma_Unreferenced (Flag180)
1879--       Defined in all entities. Set if a valid pragma Unreferenced applies
1880--       to the entity, indicating that no warning should be given if the
1881--       entity has no references, but a warning should be given if it is
1882--       in fact referenced. For private types, this flag is set in both the
1883--       private entity and full entity if the pragma applies to either. Note
1884--       that clients should generally not test this flag directly, but instead
1885--       use function Has_Unreferenced.
1886
1887--    Has_Pragma_Unreferenced_Objects (Flag212)
1888--       Defined in type and subtype entities. Set if a valid pragma
1889--       Unreferenced_Objects applies to the type, indicating that no warning
1890--       should be given for objects of such a type for being unreferenced
1891--       (but unlike the case with pragma Unreferenced, it is ok to reference
1892--       such an object and no warning is generated.
1893
1894--    Has_Predicates (Flag250)
1895--       Defined in type and subtype entities. Set if a pragma Predicate or
1896--       Predicate aspect applies to the type or subtype, or if it inherits a
1897--       Predicate aspect from its parent or progenitor types.
1898
1899--    Has_Primitive_Operations (Flag120) [base type only]
1900--       Defined in all type entities. Set if at least one primitive operation
1901--       is defined for the type.
1902
1903--    Has_Private_Ancestor (Flag151)
1904--       Applies to type extensions. True if some ancestor is derived from a
1905--       private type, making some components invisible and aggregates illegal.
1906--       This flag is set at the point of derivation. The legality of the
1907--       aggregate must be rechecked because it also depends on the visibility
1908--       at the point the aggregate is resolved. See sem_aggr.adb. This is part
1909--       of AI05-0115.
1910
1911--    Has_Private_Declaration (Flag155)
1912--       Defined in all entities. Set if it is the defining entity of a private
1913--       type declaration or its corresponding full declaration. This flag is
1914--       thus preserved when the full and the partial views are exchanged, to
1915--       indicate if a full type declaration is a completion. Used for semantic
1916--       checks in E.4(18) and elsewhere.
1917
1918--    Has_Protected (Flag271) [base type only]
1919--       Defined in all type entities. Set on protected types themselves, and
1920--       also (recursively) on any composite type which has a component for
1921--       which Has_Protected is set. The meaning is that an allocator for
1922--       or declaration of such an object must create the required protected
1923--       objects. Note: the flag is not set on access types, even if they
1924--       designate an object that Has_Protected.
1925
1926--    Has_Qualified_Name (Flag161)
1927--       Defined in all entities. Set if the name in the Chars field has
1928--       been replaced by its qualified name, as used for debug output. See
1929--       Exp_Dbug for a full description of qualification requirements. For
1930--       some entities, the name is the fully qualified name, but there are
1931--       exceptions. In particular, for local variables in procedures, we
1932--       do not include the procedure itself or higher scopes. See also the
1933--       flag Has_Fully_Qualified_Name, which is set if the name does indeed
1934--       include the fully qualified name.
1935
1936--    Has_RACW (Flag214)
1937--       Defined in package spec entities. Set if the spec contains the
1938--       declaration of a remote access-to-classwide type.
1939
1940--    Has_Record_Rep_Clause (Flag65) [implementation base type only]
1941--       Defined in record types. Set if a record representation clause has
1942--       been given for this record type. Used to prevent more than one such
1943--       clause for a given record type. Note that this is initially cleared
1944--       for a derived type, even though the representation is inherited. See
1945--       also the flag Has_Specified_Layout.
1946
1947--    Has_Recursive_Call (Flag143)
1948--       Defined in procedures. Set if a direct parameterless recursive call
1949--       is detected while analyzing the body. Used to activate some error
1950--       checks for infinite recursion.
1951
1952--    Has_Shift_Operator (Flag267) [base type only]
1953--       Defined in integer types. Set in the base type of an integer type for
1954--       which at least one of the shift operators is defined.
1955
1956--    Has_Size_Clause (Flag29)
1957--       Defined in entities for types and objects. Set if a size clause is
1958--       defined for the entity. Used to prevent multiple Size clauses for a
1959--       given entity. Note that it is always initially cleared for a derived
1960--       type, even though the Size for such a type is inherited from a Size
1961--       clause given for the parent type.
1962
1963--    Has_Small_Clause (Flag67)
1964--       Defined in ordinary fixed point types (but not subtypes). Indicates
1965--       that a small clause has been given for the entity. Used to prevent
1966--       multiple Small clauses for a given entity. Note that it is always
1967--       initially cleared for a derived type, even though the Small for such
1968--       a type is inherited from a Small clause given for the parent type.
1969
1970--    Has_Specified_Layout (Flag100) [implementation base type only]
1971--       Defined in all type entities. Set for a record type or subtype if
1972--       the record layout has been specified by a record representation
1973--       clause. Note that this differs from the flag Has_Record_Rep_Clause
1974--       in that it is inherited by a derived type. Has_Record_Rep_Clause is
1975--       used to indicate that the type is mentioned explicitly in a record
1976--       representation clause, and thus is not inherited by a derived type.
1977--       This flag is always False for non-record types.
1978
1979--    Has_Specified_Stream_Input (Flag190)
1980--    Has_Specified_Stream_Output (Flag191)
1981--    Has_Specified_Stream_Read (Flag192)
1982--    Has_Specified_Stream_Write (Flag193)
1983--       Defined in all type and subtype entities. Set for a given view if the
1984--       corresponding stream-oriented attribute has been defined by an
1985--       attribute definition clause. When such a clause occurs, a TSS is set
1986--       on the underlying full view; the flags are used to track visibility of
1987--       the attribute definition clause for partial or incomplete views.
1988
1989--    Has_Static_Discriminants (Flag211)
1990--       Defined in record subtypes constrained by discriminant values. Set if
1991--       all the discriminant values have static values, meaning that in the
1992--       case of a variant record, the component list can be trimmed down to
1993--       include only the components corresponding to these discriminants.
1994
1995--    Has_Static_Predicate (Flag269)
1996--       Defined in all types and subtypes. Set if the type (which must be a
1997--       scalar type) has a predicate whose expression is predicate-static.
1998--       This can result from the use of any Predicate, Static_Predicate, or
1999--       Dynamic_Predicate aspect. We can distinguish these cases by testing
2000--       Has_Static_Predicate_Aspect and Has_Dynamic_Predicate_Aspect. See
2001--       description of the latter flag for further information on dynamic
2002--       predicates which are also static.
2003
2004--    Has_Static_Predicate_Aspect (Flag259)
2005--       Defined in all types and subtypes. Set if a Static_Predicate aspect
2006--       applies to the type. Note that we can tell if a static predicate is
2007--       present by looking at Has_Static_Predicate, but this could have come
2008--       from a Predicate aspect or pragma or even from a Dynamic_Predicate
2009--       aspect. When we need to know the difference (e.g. to know what set of
2010--       check policies apply, use this flag and Has_Dynamic_Predicate_Aspect
2011--       to determine which case we have).
2012
2013--    Has_Storage_Size_Clause (Flag23) [implementation base type only]
2014--       Defined in task types and access types. It is set if a Storage_Size
2015--       clause is present for the type. Used to prevent multiple clauses for
2016--       one type. Note that this flag is initially cleared for a derived type
2017--       even though the Storage_Size for such a type is inherited from a
2018--       Storage_Size clause given for the parent type. Note that in the case
2019--       of access types, this flag is defined only in the root type, since a
2020--       storage size clause cannot be given to a derived type.
2021
2022--    Has_Stream_Size_Clause (Flag184)
2023--       Defined in all entities. It is set for types which have a Stream_Size
2024--       clause attribute. Used to prevent multiple Stream_Size clauses for a
2025--       given entity, and also whether it is necessary to check for a stream
2026--       size clause.
2027
2028--    Has_Task (Flag30) [base type only]
2029--       Defined in all type entities. Set on task types themselves, and also
2030--       (recursively) on any composite type which has a component for which
2031--       Has_Task is set. The meaning is that an allocator or declaration of
2032--       such an object must create the required tasks. Note: the flag is not
2033--       set on access types, even if they designate an object that Has_Task.
2034
2035--    Has_Thunks (Flag228)
2036--       Applies to E_Constant entities marked Is_Tag. True for secondary tag
2037--       referencing a dispatch table whose contents are pointers to thunks.
2038
2039--    Has_Unchecked_Union (Flag123) [base type only]
2040--       Defined in all type entities. Set on unchecked unions themselves
2041--       and (recursively) on any composite type which has a component for
2042--       which Has_Unchecked_Union is set. The meaning is that a comparison
2043--       operation or 'Valid_Scalars reference for the type is not permitted.
2044--       Note that the flag is not set on access types, even if they designate
2045--       an object that has the flag Has_Unchecked_Union set.
2046
2047--    Has_Unknown_Discriminants (Flag72)
2048--       Defined in all entities. Set for types with unknown discriminants.
2049--       Types can have unknown discriminants either from their declaration or
2050--       through type derivation. The use of this flag exactly meets the spec
2051--       in RM 3.7(26). Note that all class-wide types are considered to have
2052--       unknown discriminants. Note that both flags Has_Discriminants and
2053--       Has_Unknown_Discriminants may be true for a type. Class-wide types and
2054--       their subtypes have unknown discriminants and can have declared ones
2055--       as well. Private types declared with unknown discriminants may have a
2056--       full view that has explicit discriminants, and both flag will be set
2057--       on the partial view, to ensure that discriminants are properly
2058--       inherited in certain contexts.
2059
2060--    Has_Visible_Refinement (Flag263)
2061--       Defined in E_Abstract_State entities. Set when a state has at least
2062--       one refinement constituent and analysis is in the region between
2063--       pragma Refined_State and the end of the package body declarations.
2064
2065--    Has_Volatile_Components (Flag87) [implementation base type only]
2066--       Defined in all types and objects. Set only for an array type or array
2067--       object if a valid pragma Volatile_Components or a valid pragma
2068--       Atomic_Components applies to the type or object. Note that in the case
2069--       of an object, this flag is only set on the object if there was an
2070--       explicit pragma for the object. In other words, the proper test for
2071--       whether an object has volatile components is to see if either the
2072--       object or its base type has this flag set. Note that in the case of a
2073--       type the pragma will be chained to the rep item chain of the first
2074--       subtype in the usual manner.
2075
2076--    Has_Xref_Entry (Flag182)
2077--       Defined in all entities. Set if an entity has an entry in the Xref
2078--       information generated in ali files. This is true for all source
2079--       entities in the extended main source file. It is also true of entities
2080--       in other packages that are referenced directly or indirectly from the
2081--       main source file (indirect reference occurs when the main source file
2082--       references an entity with a type reference. See package Lib.Xref for
2083--       further details).
2084
2085--    Hiding_Loop_Variable (Node8)
2086--       Defined in variables. Set only if a variable of a discrete type is
2087--       hidden by a loop variable in the same local scope, in which case
2088--       the Hiding_Loop_Variable field of the hidden variable points to
2089--       the E_Loop_Parameter entity doing the hiding. Used in processing
2090--       warning messages if the hidden variable turns out to be unused
2091--       or is referenced without being set.
2092
2093--    Homonym (Node4)
2094--       Defined in all entities. Link for list of entities that have the
2095--       same source name and that are declared in the same or enclosing
2096--       scopes. Homonyms in the same scope are overloaded. Used for name
2097--       resolution and for the generation of debugging information.
2098
2099--    Implementation_Base_Type (synthesized)
2100--       Applies to all entities. For types, similar to Base_Type, but never
2101--       returns a private type when applied to a non-private type. Instead in
2102--       this case, it always returns the Underlying_Type of the base type, so
2103--       that we still have a concrete type. For entities other than types,
2104--       returns the entity unchanged.
2105
2106--    Import_Pragma (Node35)
2107--       Defined in subprogram entities. Set if a valid pragma Import or pragma
2108--       Import_Function or pragma Import_Procedure applies to the subprogram,
2109--       in which case this field points to the pragma (we can't use the normal
2110--       Rep_Item chain mechanism, because a single pragma Import can apply
2111--       to multiple subprogram entities).
2112
2113--    Incomplete_Actuals (Elist24)
2114--       Defined on package entities that are instances. Indicates the actuals
2115--       types in the instantiation that are limited views. If this list is
2116--       not empty, the instantiation, which appears in a package declaration,
2117--       is relocated to the corresponding package body, which must have a
2118--       corresponding nonlimited with_clause.
2119
2120--    In_Package_Body (Flag48)
2121--       Defined in package entities. Set on the entity that denotes the
2122--       package (the defining occurrence of the package declaration) while
2123--       analyzing and expanding the package body. Reset on completion of
2124--       analysis/expansion.
2125
2126--    In_Private_Part (Flag45)
2127--       Defined in all entities. Can be set only in package entities and
2128--       objects. For package entities, this flag is set to indicate that the
2129--       private part of the package is being analyzed. The flag is reset at
2130--       the end of the package declaration. For objects it indicates that the
2131--       declaration of the object occurs in the private part of a package.
2132
2133--    Initialization_Statements (Node28)
2134--       Defined in constants and variables. For a composite object initialized
2135--       initialized with an aggregate that has been converted to a sequence
2136--       of assignments, points to a block statement containing the
2137--       assignments.
2138
2139--    Inner_Instances (Elist23)
2140--       Defined in generic units. Contains element list of units that are
2141--       instantiated within the given generic. Used to diagnose circular
2142--       instantiations.
2143
2144--    Interface_Alias (Node25)
2145--       Defined in subprograms that cover a primitive operation of an abstract
2146--       interface type. Can be set only if the Is_Hidden flag is also set,
2147--       since such entities are always hidden. Points to its associated
2148--       interface subprogram. It is used to register the subprogram in
2149--       secondary dispatch table of the interface (Ada 2005: AI-251).
2150
2151--    Interface_Name (Node21)
2152--       Defined in constants, variables, exceptions, functions, procedures,
2153--       and packages. Set to Empty unless an export, import, or interface name
2154--       pragma has explicitly specified an external name, in which case it
2155--       references an N_String_Literal node for the specified external name.
2156--       Note that if this field is Empty, and Is_Imported or Is_Exported is
2157--       set, then the default interface name is the name of the entity, cased
2158--       in a manner that is appropriate to the system in use. Note that
2159--       Interface_Name is ignored if an address clause is present (since it
2160--       is meaningless in this case).
2161
2162--    Interfaces (Elist25)
2163--       Defined in record types and subtypes. List of abstract interfaces
2164--       implemented by a tagged type that are not already implemented by the
2165--       ancestors (Ada 2005: AI-251).
2166
2167--    Invariant_Procedure (synthesized)
2168--       Defined in types and subtypes. Set for private types if one or more
2169--       Invariant, or Invariant'Class, or inherited Invariant'Class aspects
2170--       apply to the type. Points to the entity for a procedure which checks
2171--       the invariant. This invariant procedure takes a single argument of the
2172--       given type, and returns if the invariant holds, or raises exception
2173--       Assertion_Error with an appropriate message if it does not hold. This
2174--       attribute is defined but always empty for private subtypes. This
2175--       attribute is also set for the corresponding full type.
2176--
2177--       Note: the reason this is marked as a synthesized attribute is that the
2178--       way this is stored is as an element of the Subprograms_For_Type field.
2179
2180--    In_Use (Flag8)
2181--       Defined in packages and types. Set when analyzing a use clause for
2182--       the corresponding entity. Reset at end of corresponding declarative
2183--       part. The flag on a type is also used to determine the visibility of
2184--       the primitive operators of the type.
2185
2186--    Is_Abstract_Subprogram (Flag19)
2187--       Defined in all subprograms and entries. Set for abstract subprograms.
2188--       Always False for enumeration literals and entries. See also
2189--       Requires_Overriding.
2190
2191--    Is_Abstract_Type (Flag146)
2192--       Defined in all types. Set for abstract types.
2193
2194--    Is_Access_Constant (Flag69)
2195--       Defined in access types and subtypes. Indicates that the keyword
2196--       constant was present in the access type definition.
2197
2198--    Is_Access_Protected_Subprogram_Type (synthesized)
2199--       Applies to all types, true for named and anonymous access to
2200--       protected subprograms.
2201
2202--    Is_Access_Type (synthesized)
2203--       Applies to all entities, true for access types and subtypes
2204
2205--    Is_Ada_2005_Only (Flag185)
2206--       Defined in all entities, true if a valid pragma Ada_05 or Ada_2005
2207--       applies to the entity which specifically names the entity, indicating
2208--       that the entity is Ada 2005 only. Note that this flag is not set if
2209--       the entity is part of a unit compiled with the normal no-argument form
2210--       of pragma Ada_05 or Ada_2005.
2211
2212--    Is_Ada_2012_Only (Flag199)
2213--       Defined in all entities, true if a valid pragma Ada_12 or Ada_2012
2214--       applies to the entity which specifically names the entity, indicating
2215--       that the entity is Ada 2012 only. Note that this flag is not set if
2216--       the entity is part of a unit compiled with the normal no-argument form
2217--       of pragma Ada_12 or Ada_2012.
2218
2219--    Is_Aliased (Flag15)
2220--       Defined in all entities. Set for objects and types whose declarations
2221--       carry the keyword aliased, and on record components that have the
2222--       keyword. For Ada 2012, also applies to formal parameters.
2223
2224--    Is_Array_Type (synthesized)
2225--       Applies to all entities, true for array types and subtypes
2226
2227--    Is_Asynchronous (Flag81)
2228--       Defined in all type entities and in procedure entities. Set
2229--       if a pragma Asynchronous applies to the entity.
2230
2231--    Is_Atomic (Flag85)
2232--       Defined in all type entities, and also in constants, components, and
2233--       variables. Set if a pragma Atomic or Shared applies to the entity.
2234--       In the case of private and incomplete types, this flag is set in
2235--       both the partial view and the full view.
2236
2237--    Is_Atomic_Or_VFA (synth)
2238--       Defined in all type entities, and also in constants, components and
2239--       variables. Set if a pragma Atomic or Shared or Volatile_Full_Access
2240--       applies to the entity. For many purposes VFA objects should be treated
2241--       the same as Atomic objects, and this predicate is intended for that
2242--       usage. In the case of private and incomplete types, the predicate
2243--       applies to both the partial view and the full view.
2244
2245--    Is_Base_Type (synthesized)
2246--       Applies to type and subtype entities. True if entity is a base type
2247
2248--    Is_Bit_Packed_Array (Flag122) [implementation base type only]
2249--       Defined in all entities. This flag is set for a packed array type that
2250--       is bit packed (i.e. the component size is known by the front end and
2251--       is in the range 1-7, 9-15, 17-31, or 33-63). Is_Packed is always set
2252--       if Is_Bit_Packed_Array is set, but it is possible for Is_Packed to be
2253--       set without Is_Bit_Packed_Array for the case of an array having one or
2254--       more index types that are enumeration types with non-standard
2255--       enumeration representations.
2256
2257--    Is_Boolean_Type (synthesized)
2258--       Applies to all entities, true for boolean types and subtypes,
2259--       i.e. Standard.Boolean and all types ultimately derived from it.
2260
2261--    Is_Called (Flag102)
2262--       Defined in subprograms. Returns true if the subprogram is called
2263--       in the unit being compiled or in a unit in the context. Used for
2264--       inlining.
2265
2266--    Is_Character_Type (Flag63)
2267--       Defined in all entities. Set for character types and subtypes,
2268--       i.e. enumeration types that have at least one character literal.
2269
2270--    Is_Checked_Ghost_Entity (Flag277)
2271--       Applies to all entities. Set for abstract states, [generic] packages,
2272--       [generic] subprograms, components, discriminants, formal parameters,
2273--       objects, package bodies, subprogram bodies, and [sub]types subject to
2274--       pragma Ghost or inherit "ghostness" from an enclosing construct, and
2275--       subject to Assertion_Policy Ghost => Check.
2276
2277--    Is_Child_Unit (Flag73)
2278--       Defined in all entities. Set only for defining entities of program
2279--       units that are child units (but False for subunits).
2280
2281--    Is_Class_Wide_Equivalent_Type (Flag35)
2282--       Defined in record types and subtypes. Set to True, if the type acts
2283--       as a class-wide equivalent type, i.e. the Equivalent_Type field of
2284--       some class-wide subtype entity references this record type.
2285
2286--    Is_Class_Wide_Type (synthesized)
2287--       Applies to all entities, true for class wide types and subtypes
2288
2289--    Is_Compilation_Unit (Flag149)
2290--       Defined in all entities. Set if the entity is a package or subprogram
2291--       entity for a compilation unit other than a subunit (since we treat
2292--       subunits as part of the same compilation operation as the ultimate
2293--       parent, we do not consider them to be separate units for this flag).
2294
2295--    Is_Completely_Hidden (Flag103)
2296--       Defined on discriminants. Only set on girder discriminants of
2297--       untagged types. When set, the entity is a girder discriminant of a
2298--       derived untagged type which is not directly visible in the derived
2299--       type because the derived type or one of its ancestors have renamed the
2300--       discriminants in the root type. Note: there are girder discriminants
2301--       which are not Completely_Hidden (e.g. discriminants of a root type).
2302
2303--    Is_Composite_Type (synthesized)
2304--       Applies to all entities, true for all composite types and
2305--       subtypes. Either Is_Composite_Type or Is_Elementary_Type (but
2306--       not both) is true of any type.
2307
2308--    Is_Concurrent_Record_Type (Flag20)
2309--       Defined in record types and subtypes. Set if the type was created
2310--       by the expander to represent a task or protected type. For every
2311--       concurrent type, such as record type is constructed, and task and
2312--       protected objects are instances of this record type at runtime
2313--       (The backend will replace declarations of the concurrent type using
2314--       the declarations of the corresponding record type). See Exp_Ch9 for
2315--       further details.
2316
2317--    Is_Concurrent_Type (synthesized)
2318--       Applies to all entities, true for task types and subtypes and for
2319--       protected types and subtypes.
2320
2321--    Is_Constant_Object (synthesized)
2322--       Applies to all entities, true for E_Constant, E_Loop_Parameter, and
2323--       E_In_Parameter entities.
2324
2325--    Is_Constrained (Flag12)
2326--       Defined in types or subtypes which may have index, discriminant
2327--       or range constraint (i.e. array types and subtypes, record types
2328--       and subtypes, string types and subtypes, and all numeric types).
2329--       Set if the type or subtype is constrained.
2330
2331--    Is_Constr_Subt_For_U_Nominal (Flag80)
2332--       Defined in all types and subtypes. Set only for the constructed
2333--       subtype of an object whose nominal subtype is unconstrained. Note
2334--       that the constructed subtype itself will be constrained.
2335
2336--    Is_Constr_Subt_For_UN_Aliased (Flag141)
2337--       Defined in all types and subtypes. This flag can be set only if
2338--       Is_Constr_Subt_For_U_Nominal is also set. It indicates that in
2339--       addition the object concerned is aliased. This flag is used by
2340--       the backend to determine whether a template must be constructed.
2341
2342--    Is_Constructor (Flag76)
2343--       Defined in function and procedure entities. Set if a pragma
2344--       CPP_Constructor applies to the subprogram.
2345
2346--    Is_Controlled (Flag42) [base type only]
2347--       Defined in all type entities. Indicates that the type is controlled,
2348--       i.e. is either a descendant of Ada.Finalization.Controlled or of
2349--       Ada.Finalization.Limited_Controlled.
2350
2351--    Is_Controlled_Active (synth) [base type only]
2352--       Defined in all type entities. Set if Is_Controlled is set for the
2353--       type, and Disable_Controlled is not set.
2354
2355--    Is_Controlling_Formal (Flag97)
2356--       Defined in all Formal_Kind entities. Marks the controlling parameters
2357--       of dispatching operations.
2358
2359--    Is_CPP_Class (Flag74)
2360--       Defined in all type entities, set only for tagged types to which a
2361--       valid pragma Import (CPP, ...) or pragma CPP_Class has been applied.
2362
2363--    Is_Decimal_Fixed_Point_Type (synthesized)
2364--       Applies to all type entities, true for decimal fixed point
2365--       types and subtypes.
2366
2367--    Is_Default_Init_Cond_Procedure (Flag132)
2368--       Defined in functions and procedures. Set for a generated procedure
2369--       which verifies the assumption of pragma Default_Initial_Condition.
2370
2371--    Is_Descendent_Of_Address (Flag223)
2372--       Defined in all entities. True if the entity is type System.Address,
2373--       or (recursively) a subtype or derived type of System.Address.
2374
2375--    Is_Discrete_Or_Fixed_Point_Type (synthesized)
2376--       Applies to all entities, true for all discrete types and subtypes
2377--       and all fixed-point types and subtypes.
2378
2379--    Is_Discrete_Type (synthesized)
2380--       Applies to all entities, true for all discrete types and subtypes
2381
2382--    Is_Discrim_SO_Function (Flag176)
2383--       Defined in all entities. Set only in E_Function entities that Layout
2384--       creates to compute discriminant-dependent dynamic size/offset values.
2385
2386--    Is_Discriminant_Check_Function (Flag264)
2387--       Defined in all entities. Set only in E_Function entities for functions
2388--       created to do discriminant checks.
2389
2390--    Is_Discriminal (synthesized)
2391--       Applies to all entities, true for renamings of discriminants. Such
2392--       entities appear as constants or IN parameters.
2393
2394--    Is_Dispatch_Table_Entity (Flag234)
2395--       Applies to all entities. Set to indicate to the backend that this
2396--       entity is associated with a dispatch table.
2397
2398--    Is_Dispatching_Operation (Flag6)
2399--       Defined in all entities. Set for procedures, functions, generic
2400--       procedures, and generic functions if the corresponding operation
2401--       is dispatching.
2402
2403--    Is_Dynamic_Scope (synthesized)
2404--       Applies to all Entities. Returns True if the entity is a dynamic
2405--       scope (i.e. a block, subprogram, task_type, entry
2406--       or extended return statement).
2407
2408--    Is_Elementary_Type (synthesized)
2409--       Applies to all entities, true for all elementary types and
2410--       subtypes. Either Is_Composite_Type or Is_Elementary_Type (but
2411--       not both) is true of any type.
2412
2413--    Is_Eliminated (Flag124)
2414--       Defined in type entities, subprogram entities, and object entities.
2415--       Indicates that the corresponding entity has been eliminated by use
2416--       of pragma Eliminate. Also used to mark subprogram entities whose
2417--       declaration and body are within unreachable code that is removed.
2418
2419--    Is_Entry (synthesized)
2420--       Applies to all entities, True only for entry and entry family
2421--       entities and False for all other entity kinds.
2422
2423--    Is_Entry_Formal (Flag52)
2424--       Defined in all entities. Set only for entry formals (which can only
2425--       be in, in-out or out parameters). This flag is used to speed up the
2426--       test for the need to replace references in Exp_Ch2.
2427
2428--    Is_Enumeration_Type (synthesized)
2429--       Defined in all entities, true for enumeration types and subtypes
2430
2431--    Is_Exported (Flag99)
2432--       Defined in all entities. Set if the entity is exported. For now we
2433--       only allow the export of constants, exceptions, functions, procedures
2434--       and variables, but that may well change later on. Exceptions can only
2435--       be exported in the Java VM implementation of GNAT, which is retired.
2436
2437--    Is_External_State (synthesized)
2438--       Applies to all entities, true for abstract states that are subject to
2439--       option External.
2440
2441--    Is_Finalizer (synthesized)
2442--       Applies to all entities, true for procedures containing finalization
2443--       code to process local or library level objects.
2444
2445--    Is_First_Subtype (Flag70)
2446--       Defined in all entities. True for first subtypes (RM 3.2.1(6)),
2447--       i.e. the entity in the type declaration that introduced the type.
2448--       This may be the base type itself (e.g. for record declarations and
2449--       enumeration type declarations), or it may be the first subtype of
2450--       an anonymous base type (e.g. for integer type declarations or
2451--       constrained array declarations).
2452
2453--    Is_Fixed_Point_Type (synthesized)
2454--       Applies to all entities, true for decimal and ordinary fixed
2455--       point types and subtypes.
2456
2457--    Is_Floating_Point_Type (synthesized)
2458--       Applies to all entities, true for float types and subtypes
2459
2460--    Is_Formal (synthesized)
2461--       Applies to all entities, true for IN, IN OUT and OUT parameters
2462
2463--    Is_Formal_Object (synthesized)
2464--       Applies to all entities, true for generic IN and IN OUT parameters
2465
2466--    Is_Formal_Subprogram (Flag111)
2467--       Defined in all entities. Set for generic formal subprograms.
2468
2469--    Is_For_Access_Subtype (Flag118)
2470--       Defined in E_Private_Subtype and E_Record_Subtype entities. Means the
2471--       sole purpose of the type is to be designated by an Access_Subtype and
2472--       hence should not be expanded into components because the type may not
2473--       have been found or frozen yet.
2474
2475--    Is_Frozen (Flag4)
2476--       Defined in all type and subtype entities. Set if type or subtype has
2477--       been frozen.
2478
2479--    Is_Generic_Actual_Subprogram (Flag274)
2480--       Defined on functions and procedures. Set on the entity of the renaming
2481--       declaration created within an instance for an actual subprogram.
2482--       Used to generate constraint checks on calls to these subprograms, even
2483--       within an instance of a predefined run-time unit, in which checks
2484--       are otherwise suppressed.
2485--
2486--       The flag is also set on the entity of the expression function created
2487--       within an instance, for a function that has external axiomatization,
2488--       for use in GNATprove mode.
2489
2490--    Is_Generic_Actual_Type (Flag94)
2491--       Defined in all type and subtype entities. Set in the subtype
2492--       declaration that renames the generic formal as a subtype of the
2493--       actual. Guarantees that the subtype is not static within the instance.
2494--       Also used during analysis of an instance, to simplify resolution of
2495--       accidental overloading that occurs when different formal types get the
2496--       same actual.
2497
2498--    Is_Generic_Instance (Flag130)
2499--       Defined in all entities. Set to indicate that the entity is an
2500--       instance of a generic unit, or a formal package (which is an instance
2501--       of the template).
2502
2503--    Is_Generic_Subprogram (synthesized)
2504--       Applies to all entities. Yields True for a generic subprogram
2505--       (generic function, generic subprogram), False for all other entities.
2506
2507--    Is_Generic_Type (Flag13)
2508--       Defined in all entities. Set for types which are generic formal types.
2509--       Such types have an Ekind that corresponds to their classification, so
2510--       the Ekind cannot be used to identify generic formal types.
2511
2512--    Is_Generic_Unit (synthesized)
2513--       Applies to all entities. Yields True for a generic unit (generic
2514--       package, generic function, generic procedure), and False for all
2515--       other entities.
2516
2517--    Is_Ghost_Entity (synthesized)
2518--       Applies to all entities. Yields True for abstract states, [generic]
2519--       packages, [generic] subprograms, components, discriminants, formal
2520--       parameters, objects, package bodies, subprogram bodies, and [sub]types
2521--       subject to pragma Ghost or those that inherit the Ghost propery from
2522--       an enclosing construct.
2523
2524--    Is_Hidden (Flag57)
2525--       Defined in all entities. Set for all entities declared in the
2526--       private part or body of a package. Also marks generic formals of a
2527--       formal package declared without a box. For library level entities,
2528--       this flag is set if the entity is not publicly visible. This flag
2529--       is reset when compiling the body of the package where the entity
2530--       is declared, when compiling the private part or body of a public
2531--       child unit, and when compiling a private child unit (see Install_
2532--       Private_Declaration in sem_ch7).
2533
2534--    Is_Hidden_Non_Overridden_Subpgm (Flag2)
2535--       Defined in all entities. Set for implicitly declared subprograms
2536--       that require overriding or are null procedures, and are hidden by
2537--       a non-fully conformant homograph with the same characteristics
2538--       (Ada RM 8.3 12.3/2).
2539
2540--    Is_Hidden_Open_Scope (Flag171)
2541--       Defined in all entities. Set for a scope that contains the
2542--       instantiation of a child unit, and whose entities are not visible
2543--       during analysis of the instance.
2544
2545--    Is_Ignored_Ghost_Entity (Flag278)
2546--       Applies to all entities. Set for abstract states, [generic] packages,
2547--       [generic] subprograms, components, discriminants, formal parameters,
2548--       objects, package bodies, subprogram bodies, and [sub]types subject to
2549--       pragma Ghost or inherit "ghostness" from an enclosing construct, and
2550--       subject to Assertion_Policy Ghost => Ignore.
2551
2552--    Is_Immediately_Visible (Flag7)
2553--       Defined in all entities. Set if entity is immediately visible, i.e.
2554--       is defined in some currently open scope (RM 8.3(4)).
2555
2556--    Is_Implementation_Defined (Flag254)
2557--       Defined in all entities. Set if a pragma Implementation_Defined is
2558--       applied to the pragma. Used to mark all implementation defined
2559--       identifiers in standard library packages, and to implement the
2560--       restriction No_Implementation_Identifiers.
2561
2562--    Is_Imported (Flag24)
2563--       Defined in all entities. Set if the entity is imported. For now we
2564--       only allow the import of exceptions, functions, procedures, packages.
2565--       and variables. Exceptions, packages and types can only be imported in
2566--       the Java VM implementation, which is retired.
2567
2568--    Is_Incomplete_Or_Private_Type (synthesized)
2569--       Applies to all entities, true for private and incomplete types
2570
2571--    Is_Incomplete_Type (synthesized)
2572--       Applies to all entities, true for incomplete types and subtypes
2573
2574--    Is_Independent (Flag268)
2575--       Defined in all type entities, and also in constants, components and
2576--       variables. Set if a valid pragma or aspect Independent applies to the
2577--       entity, or if a valid pragma or aspect Independent_Components applies
2578--       to the enclosing record type for a component. Also set if a pragma
2579--       Shared or pragma Atomic applies to the entity. In the case of private
2580--       and incomplete types, this flag is set in both the partial view and
2581--       the full view.
2582
2583--    Is_Inlined (Flag11)
2584--       Defined in all entities. Set for functions and procedures which are
2585--       to be inlined. For subprograms created during expansion, this flag
2586--       may be set directly by the expander to request inlining. Also set
2587--       for packages that contain inlined subprograms, whose bodies must be
2588--       be compiled. Is_Inlined is also set on generic subprograms and is
2589--       inherited by their instances. It is also set on the body entities
2590--       of inlined subprograms. See also Has_Pragma_Inline.
2591
2592--    Is_Inlined_Always (Flag1)
2593--       Defined in subprograms. Set for functions and procedures which are
2594--       always inlined in GNATprove mode. GNATprove uses this flag to know
2595--       when a body does not need to be analyzed. The value of this flag is
2596--       only meaningful if Body_To_Inline is not Empty for the subprogram.
2597
2598--    Is_Instantiated (Flag126)
2599--       Defined in generic packages and generic subprograms. Set if the unit
2600--       is instantiated from somewhere in the extended main source unit. This
2601--       flag is used to control warnings about the unit being uninstantiated.
2602--       Also set in a package that is used as an actual for a generic package
2603--       formal in an instantiation. Also set on a parent instance, in the
2604--       instantiation of a child, which is implicitly declared in the parent.
2605
2606--    Is_Integer_Type (synthesized)
2607--       Applies to all entities, true for integer types and subtypes
2608
2609--    Is_Interface (Flag186)
2610--       Defined in record types and subtypes. Set to indicate that the current
2611--       entity corresponds with an abstract interface. Because abstract
2612--       interfaces are conceptually a special kind of abstract tagged types
2613--       we represent them by means of tagged record types and subtypes
2614--       marked with this attribute. This allows us to reuse most of the
2615--       compiler support for abstract tagged types to implement interfaces
2616--       (Ada 2005: AI-251).
2617
2618--    Is_Internal (Flag17)
2619--       Defined in all entities. Set to indicate an entity created during
2620--       semantic processing (e.g. an implicit type, or a temporary). The
2621--       current uses of this flag are:
2622--
2623--         1) Internal entities (such as temporaries generated for the result
2624--         of an inlined function call or dummy variables generated for the
2625--         debugger). Set to indicate that they need not be initialized, even
2626--         when scalars are initialized or normalized;
2627--
2628--         2) Predefined primitives of tagged types. Set to mark that they
2629--         have specific properties: first they are primitives even if they
2630--         are not defined in the type scope (the freezing point is not
2631--         necessarily in the same scope), and second the predefined equality
2632--         can be overridden by a user-defined equality, no body will be
2633--         generated in this case.
2634--
2635--         3) Object declarations generated by the expander that are implicitly
2636--         imported or exported so that they can be marked in Sprint output.
2637--
2638--         4) Internal entities in the list of primitives of tagged types that
2639--         are used to handle secondary dispatch tables. These entities have
2640--         also the attribute Interface_Alias.
2641
2642--    Is_Interrupt_Handler (Flag89)
2643--       Defined in procedures. Set if a pragma Interrupt_Handler applies
2644--       to the procedure. The procedure must be parameterless, and on all
2645--       targets except AAMP it must be a protected procedure.
2646
2647--    Is_Intrinsic_Subprogram (Flag64)
2648--       Defined in functions and procedures. It is set if a valid pragma
2649--       Interface or Import is present for this subprogram specifying pragma
2650--       Intrinsic. Valid means that the name and profile of the subprogram
2651--       match the requirements of one of the recognized intrinsic subprograms
2652--       (see package Sem_Intr for details). Note: the value of Convention for
2653--       such an entity will be set to Convention_Intrinsic, but it is the
2654--       setting of Is_Intrinsic_Subprogram, NOT simply having convention set
2655--       to intrinsic, which causes intrinsic code to be generated.
2656
2657--    Is_Invariant_Procedure (Flag257)
2658--       Defined in functions and procedures. Set for a generated invariant
2659--       procedure to identify it easily.
2660
2661--    Is_Itype (Flag91)
2662--       Defined in all entities. Set to indicate that a type is an Itype,
2663--       which means that the declaration for the type does not appear
2664--       explicitly in the tree. Instead the backend will elaborate the type
2665--       when it is first used. Has_Delayed_Freeze can be set for Itypes, and
2666--       the meaning is that the first use (the one which causes the type to be
2667--       defined) will be the freeze node. Note that an important restriction
2668--       on Itypes is that the first use of such a type (the one that causes it
2669--       to be defined) must be in the same scope as the type.
2670
2671--    Is_Known_Non_Null (Flag37)
2672--       Defined in all entities. Relevant (and can be set) only for
2673--       objects of an access type. It is set if the object is currently
2674--       known to have a non-null value (meaning that no access checks
2675--       are needed). The indication can for example come from assignment
2676--       of an access parameter or an allocator whose value is known non-null.
2677--
2678--       Note: this flag is set according to the sequential flow of the
2679--       program, watching the current value of the variable. However, this
2680--       processing can miss cases of changing the value of an aliased or
2681--       constant object, so even if this flag is set, it should not be
2682--       believed if the variable is aliased or volatile. It would be a
2683--       little neater to avoid the flag being set in the first place in
2684--       such cases, but that's trickier, and there is only one place that
2685--       tests the value anyway.
2686--
2687--       The flag is dynamically set and reset as semantic analysis and
2688--       expansion proceeds. Its value is meaningless once the tree is
2689--       fully constructed, since it simply indicates the last state.
2690--       Thus this flag has no meaning to the backend.
2691
2692--    Is_Known_Null (Flag204)
2693--       Defined in all entities. Relevant (and can be set ) only for
2694--       objects of an access type. It is set if the object is currently known
2695--       to have a null value (meaning that a dereference will surely raise
2696--       constraint error exception). The indication can come from an
2697--       assignment or object declaration.
2698--
2699--       The comments above about sequential flow and aliased and volatile for
2700--       the Is_Known_Non_Null flag apply equally to the Is_Known_Null flag.
2701
2702--    Is_Known_Valid (Flag170)
2703--       Defined in all entities. Relevant for types (and subtype) and
2704--       for objects (and enumeration literals) of a discrete type.
2705--
2706--       The purpose of this flag is to implement the requirement stated
2707--       in (RM 13.9.1(9-11)) which require that the use of possibly invalid
2708--       values may not cause programs to become erroneous. See the function
2709--       Checks.Expr_Known_Valid for further details. Note that the setting
2710--       is conservative, in the sense that if the flag is set, it must be
2711--       right. If the flag is not set, nothing is known about the validity.
2712--
2713--       For enumeration literals, the flag is always set, since clearly
2714--       an enumeration literal represents a valid value. Range checks
2715--       where necessary will ensure that this valid value is appropriate.
2716--
2717--       For objects, the flag indicates the state of knowledge about the
2718--       current value of the object. This may be modified during expansion,
2719--       and thus the final value is not relevant to the backend.
2720--
2721--       For types and subtypes, the flag is set if all possible bit patterns
2722--       of length Object_Size (i.e. Esize of the type) represent valid values
2723--       of the type. In general for such tytpes, all values are valid, the
2724--       only exception being the case where an object of the type has an
2725--       explicit size that is greater than Object_Size.
2726--
2727--       For non-discrete objects, the setting of the Is_Known_Valid flag is
2728--       not defined, and is not relevant, since the considerations of the
2729--       requirement in (RM 13.9.1(9-11)) do not apply.
2730--
2731--       The flag is dynamically set and reset as semantic analysis and
2732--       expansion proceeds. Its value is meaningless once the tree is
2733--       fully constructed, since it simply indicates the last state.
2734--       Thus this flag has no meaning to the backend.
2735
2736--    Is_Limited_Composite (Flag106)
2737--       Defined in all entities. Set for composite types that have a limited
2738--       component. Used to enforce the rule that operations on the composite
2739--       type that depend on the full view of the component do not become
2740--       visible until the immediate scope of the composite type itself
2741--       (RM 7.3.1 (5)).
2742
2743--    Is_Limited_Interface (Flag197)
2744--       Defined in record types and subtypes. True for interface types, if
2745--       interface is declared limited, task, protected, or synchronized, or
2746--       is derived from a limited interface.
2747
2748--    Is_Limited_Record (Flag25)
2749--       Defined in all entities. Set to true for record (sub)types if the
2750--       record is declared to be limited. Note that this flag is not set
2751--       simply because some components of the record are limited.
2752
2753--    Is_Local_Anonymous_Access (Flag194)
2754--       Defined in access types. Set for an anonymous access type to indicate
2755--       that the type is created for a record component with an access
2756--       definition, an array component, or (pre-Ada 2012) a standalone object.
2757--       Such anonymous types have an accessibility level equal to that of the
2758--       declaration in which they appear, unlike the anonymous access types
2759--       that are created for access parameters, access discriminants, and
2760--       (as of Ada 2012) stand-alone objects.
2761
2762--    Is_Machine_Code_Subprogram (Flag137)
2763--       Defined in subprogram entities. Set to indicate that the subprogram
2764--       is a machine code subprogram (i.e. its body includes at least one
2765--       code statement). Also indicates that all necessary semantic checks
2766--       as required by RM 13.8(3) have been performed.
2767
2768--    Is_Modular_Integer_Type (synthesized)
2769--       Applies to all entities. True if entity is a modular integer type
2770
2771--    Is_Non_Static_Subtype (Flag109)
2772--       Defined in all type and subtype entities. It is set in some (but not
2773--       all) cases in which a subtype is known to be non-static. Before this
2774--       flag was added, the computation of whether a subtype was static was
2775--       entirely synthesized, by looking at the bounds, and the immediate
2776--       subtype parent. However, this method does not work for some Itypes
2777--       that have no parent set (and the only way to find the immediate
2778--       subtype parent is to go through the tree). For now, this flag is set
2779--       conservatively, i.e. if it is set then for sure the subtype is non-
2780--       static, but if it is not set, then the type may or may not be static.
2781--       Thus the test for a static subtype is that this flag is clear AND that
2782--       the bounds are static AND that the parent subtype (if available to be
2783--       tested) is static. Eventually we should make sure this flag is always
2784--       set right, at which point, these comments can be removed, and the
2785--       tests for static subtypes greatly simplified.
2786
2787--    Is_Null_Init_Proc (Flag178)
2788--       Defined in procedure entities. Set for generated init proc procedures
2789--       (used to initialize composite types), if the code for the procedure
2790--       is null (i.e. is a return and nothing else). Such null initialization
2791--       procedures are generated in case some client is compiled using the
2792--       Initialize_Scalars pragma, generating a call to this null procedure,
2793--       but there is no need to call such procedures within a compilation
2794--       unit, and this flag is used to suppress such calls.
2795
2796--    Is_Null_State (synthesized)
2797--       Applies to all entities, true for an abstract state declared with
2798--       keyword null.
2799
2800--    Is_Numeric_Type (synthesized)
2801--       Applies to all entities, true for all numeric types and subtypes
2802--       (integer, fixed, float).
2803
2804--    Is_Object (synthesized)
2805--       Applies to all entities, true for entities representing objects,
2806--       including generic formal parameters.
2807
2808--    Is_Obsolescent (Flag153)
2809--       Defined in all entities. Set for any entity to which a valid pragma
2810--       or aspect Obsolescent applies.
2811
2812--    Is_Only_Out_Parameter (Flag226)
2813--       Defined in formal parameter entities. Set if this parameter is the
2814--       only OUT parameter for this formal part. If there is more than one
2815--       out parameter, or if there is some other IN OUT parameter then this
2816--       flag is not set in any of them. Used in generation of warnings.
2817
2818--    Is_Ordinary_Fixed_Point_Type (synthesized)
2819--       Applies to all entities, true for ordinary fixed point types and
2820--       subtypes.
2821
2822--    Is_Package_Body_Entity (Flag160)
2823--       Defined in all entities. Set for entities defined at the top level
2824--       of a package body. Used to control externally generated names.
2825
2826--    Is_Package_Or_Generic_Package (synthesized)
2827--       Applies to all entities. True for packages and generic packages.
2828--       False for all other entities.
2829
2830--    Is_Packed (Flag51) [implementation base type only]
2831--       Defined in all type entities. This flag is set only for record and
2832--       array types which have a packed representation. There are three
2833--       cases which cause packing:
2834--
2835--         1. Explicit use of pragma Pack for an array of package components
2836--         2. Explicit use of pragma Pack to pack a record
2837--         4. Setting Component_Size of an array to a bit-packable value
2838--         3. Indexing an array with a non-standard enumeration type.
2839--
2840--       For records, Is_Packed is always set if Has_Pragma_Pack is set,
2841--       and can also be set on its own in a derived type which inherited
2842--       its packed status.
2843--
2844--       For arrays, Is_Packed is set if an array is bit packed (i.e. the
2845--       component size is known at compile time and is 1-7, 9-15 or 17-31),
2846--       or if the array has one or more index types that are enumeration
2847--       types with non-standard representations (in GNAT, we store such
2848--       arrays compactly, using the Pos of the enumeration type value).
2849--
2850--       As for the case of records, Is_Packed can be set on its own for a
2851--       derived type, with the same dual before/after freeze meaning.
2852--       Is_Packed can also be set as the result of an explicit component
2853--       size clause that specifies an appropriate component size.
2854--
2855--       In the bit packed array case, Is_Bit_Packed_Array will be set in
2856--       the bit packed case once the array type is frozen.
2857--
2858--       Before an array type is frozen, Is_Packed will always be set if
2859--       Has_Pragma_Pack is set. Before the freeze point, it is not possible
2860--       to know the component size, since the component type is not frozen
2861--       until the array type is frozen. Thus Is_Packed for an array type
2862--       before it is frozen means that packed is required. Then if it turns
2863--       out that the component size is not suitable for bit packing, the
2864--       Is_Packed flag gets turned off.
2865
2866--    Is_Packed_Array (synth)
2867--       Applies to all entities, true if entity is for a packed array.
2868
2869--    Is_Packed_Array_Impl_Type (Flag138)
2870--       Defined in all entities. This flag is set on the entity for the type
2871--       used to implement a packed array (either a modular type, or a subtype
2872--       of Packed_Bytes{1,2,4} as appropriate). The flag is set if and only
2873--       if the type appears in the Packed_Array_Impl_Type field of some other
2874--       entity. It is used by the backend to activate the special processing
2875--       for such types (unchecked conversions that would not otherwise be
2876--       allowed are allowed for such types). If Is_Packed_Array_Impl_Type is
2877--       set in an entity, then the Original_Array_Type field of this entity
2878--       points to the array type for which this is the Packed_Array_Impl_Type.
2879
2880--    Is_Param_Block_Component_Type (Flag215) [base type only]
2881--       Defined in access types. Set to indicate that a type is the type of a
2882--       component of the parameter block record type generated by the compiler
2883--       for an entry or a select statement. Read by CodePeer.
2884
2885--    Is_Potentially_Use_Visible (Flag9)
2886--       Defined in all entities. Set if entity is potentially use visible,
2887--       i.e. it is defined in a package that appears in a currently active
2888--       use clause (RM 8.4(8)). Note that potentially use visible entities
2889--       are not necessarily use visible (RM 8.4(9-11)).
2890
2891--    Is_Predicate_Function (Flag255)
2892--       Present in functions and procedures. Set for generated predicate
2893--       functions.
2894
2895--    Is_Predicate_Function_M (Flag256)
2896--       Present in functions and procedures. Set for special version of
2897--       predicate function generated for use in membership tests, where
2898--       raise expressions are transformed to return False.
2899
2900--    Is_Preelaborated (Flag59)
2901--       Defined in all entities, set in E_Package and E_Generic_Package
2902--       entities to which a pragma Preelaborate is applied, and also in
2903--       all entities within such packages. Note that the fact that this
2904--       flag is set does not necesarily mean that no elaboration code is
2905--       generated for the package.
2906
2907--    Is_Primitive (Flag218)
2908--       Defined in overloadable entities and in generic subprograms. Set to
2909--       indicate that this is a primitive operation of some type, which may
2910--       be a tagged type or an untagged type. Used to verify overriding
2911--       indicators in bodies.
2912
2913--    Is_Primitive_Wrapper (Flag195)
2914--       Defined in functions and procedures created by the expander to serve
2915--       as an indirection mechanism to overriding primitives of concurrent
2916--       types, entries and protected procedures.
2917
2918--    Is_Prival (synthesized)
2919--       Applies to all entities, true for renamings of private protected
2920--       components. Such entities appear as constants or variables.
2921
2922--    Is_Private_Composite (Flag107)
2923--       Defined in composite types that have a private component. Used to
2924--       enforce the rule that operations on the composite type that depend
2925--       on the full view of the component, do not become visible until the
2926--       immediate scope of the composite type itself (7.3.1 (5)). Both this
2927--       flag and Is_Limited_Composite are needed.
2928
2929--    Is_Private_Descendant (Flag53)
2930--       Defined in entities that can represent library units (packages,
2931--       functions, procedures). Set if the library unit is itself a private
2932--       child unit, or if it is the descendent of a private child unit.
2933
2934--    Is_Private_Primitive (Flag245)
2935--       Defined in subprograms. Set if the operation is a primitive of a
2936--       tagged type (procedure or function dispatching on result) whose
2937--       full view has not been seen. Used in particular for primitive
2938--       subprograms of a synchronized type declared between the two views
2939--       of the type, so that the wrapper built for such a subprogram can
2940--       be given the proper signature.
2941
2942--    Is_Private_Type (synthesized)
2943--       Applies to all entities, true for private types and subtypes,
2944--       as well as for record with private types as subtypes.
2945
2946--    Is_Processed_Transient (Flag252)
2947--       Defined in variables, loop parameters, and constants, including the
2948--       loop parameters of generalized iterators. Set when a transient object
2949--       needs to be finalized and has already been processed by the transient
2950--       scope machinery. This flag signals the general finalization mechanism
2951--       to ignore the transient object.
2952
2953--    Is_Protected_Component (synthesized)
2954--       Applicable to all entities, true if the entity denotes a private
2955--       component of a protected type.
2956
2957--    Is_Protected_Interface (synthesized)
2958--       Defined in types that are interfaces. True if interface is declared
2959--       protected, or is derived from protected interfaces.
2960
2961--    Is_Protected_Record_Type (synthesized)
2962--       Applies to all entities, true if Is_Concurrent_Record_Type is true and
2963--       Corresponding_Concurrent_Type is a protected type.
2964
2965--    Is_Protected_Type (synthesized)
2966--       Applies to all entities, true for protected types and subtypes
2967
2968--    Is_Public (Flag10)
2969--       Defined in all entities. Set to indicate that an entity defined in
2970--       one compilation unit can be referenced from other compilation units.
2971--       If this reference causes a reference in the generated code, for
2972--       example in the case of a variable name, then the backend will generate
2973--       an appropriate external name for use by the linker.
2974
2975--    Is_Pure (Flag44)
2976--       Defined in all entities. Set in all entities of a unit to which a
2977--       pragma Pure is applied except for non-intrinsic imported subprograms,
2978--       and also set for the entity of the unit itself. In addition, this
2979--       flag may be set for any other functions or procedures that are known
2980--       to be side effect free, so in the case of subprograms, the Is_Pure
2981--       flag may be used by the optimizer to imply that it can assume freedom
2982--       from side effects (other than those resulting from assignment to out
2983--       parameters, or to objects designated by access parameters).
2984
2985--    Is_Pure_Unit_Access_Type (Flag189)
2986--       Defined in access type and subtype entities. Set if the type or
2987--       subtype appears in a pure unit. Used to give an error message at
2988--       freeze time if the access type has a storage pool.
2989
2990--    Is_RACW_Stub_Type (Flag244)
2991--       Defined in all types, true for the stub types generated for remote
2992--       access-to-class-wide types.
2993
2994--    Is_Raised (Flag224)
2995--       Defined in exception entities. Set if the entity is referenced by a
2996--       a raise statement.
2997
2998--    Is_Real_Type (synthesized)
2999--       Applies to all entities, true for real types and subtypes
3000
3001--    Is_Record_Type (synthesized)
3002--       Applies to all entities, true for record types and subtypes,
3003--       includes class-wide types and subtypes (which are also records).
3004
3005--    Is_Remote_Call_Interface (Flag62)
3006--       Defined in all entities. Set in E_Package and E_Generic_Package
3007--       entities to which a pragma Remote_Call_Interface is applied, and
3008--       also on entities declared in the visible part of such a package.
3009
3010--    Is_Remote_Types (Flag61)
3011--       Defined in all entities. Set in E_Package and E_Generic_Package
3012--       entities to which a pragma Remote_Types is applied, and also on
3013--       entities declared in the visible part of the spec of such a package.
3014--       Also set for types which are generic formal types to which the
3015--       pragma Remote_Access_Type applies.
3016
3017--    Is_Renaming_Of_Object (Flag112)
3018--       Defined in all entities, set only for a variable or constant for
3019--       which the Renamed_Object field is non-empty and for which the
3020--       renaming is handled by the front end, by macro substitution of
3021--       a copy of the (evaluated) name tree whereever the variable is used.
3022
3023--    Is_Return_Object (Flag209)
3024--       Defined in all object entities. True if the object is the return
3025--       object of an extended_return_statement; False otherwise.
3026
3027--    Is_Safe_To_Reevaluate (Flag249)
3028--       Defined in all entities. Set in variables that are initialized by
3029--       means of an assignment statement. When initialized their contents
3030--       never change and hence they can be seen by the backend as constants.
3031--       See also Is_True_Constant.
3032
3033--    Is_Scalar_Type (synthesized)
3034--       Applies to all entities, true for scalar types and subtypes
3035
3036--    Is_Shared_Passive (Flag60)
3037--       Defined in all entities. Set in E_Package and E_Generic_Package
3038--       entities to which a pragma Shared_Passive is applied, and also in
3039--       all entities within such packages.
3040
3041--    Is_Standard_Character_Type (synthesized)
3042--       Applies to all entities, true for types and subtypes whose root type
3043--       is one of the standard character types (Character, Wide_Character, or
3044--       Wide_Wide_Character).
3045
3046--    Is_Standard_String_Type (synthesized)
3047--       Applies to all entities, true for types and subtypes whose root
3048--       type is one of the standard string types (String, Wide_String, or
3049--       Wide_Wide_String).
3050
3051--    Is_Static_Type (Flag281)
3052--       Defined in entities. Only set for (sub)types. If set, indicates that
3053--       the type is known to be a static type (defined as a discrete type with
3054--       static bounds, a record all of whose component types are static types,
3055--       or an array, all of whose bounds are of a static type, and also have
3056--       a component type that is a static type). See Set_Uplevel_Type for more
3057--       information on how this flag is used.
3058
3059--    Is_Statically_Allocated (Flag28)
3060--       Defined in all entities. This can only be set for exception,
3061--       variable, constant, and type/subtype entities. If the flag is set,
3062--       then the variable or constant must be allocated statically rather
3063--       than on the local stack frame. For exceptions, the meaning is that
3064--       the exception data should be allocated statically (and indeed this
3065--       flag is always set for exceptions, since exceptions do not have
3066--       local scope). For a type, the meaning is that the type must be
3067--       elaborated at the global level rather than locally. No type marked
3068--       with this flag may depend on a local variable, or on any other type
3069--       which does not also have this flag set to True. For a variable or
3070--       or constant, if the flag is set, then the type of the object must
3071--       either be declared at the library level, or it must also have the
3072--       flag set (since to allocate the object statically, its type must
3073--       also be elaborated globally).
3074
3075--    Is_String_Type (synthesized)
3076--       Applies to all type entities. Determines if the given type is a
3077--       string type, i.e. it is directly a string type or string subtype,
3078--       or a string slice type, or an array type with one dimension and a
3079--       component type that is a character type.
3080
3081--    Is_Subprogram (synthesized)
3082--       Applies to all entities, true for function, procedure and operator
3083--       entities.
3084
3085--    Is_Subprogram_Or_Generic_Subprogram
3086--       Applies to all entities, true for function procedure and operator
3087--       entities, and also for the corresponding generic entities.
3088
3089--    Is_Synchronized_Interface (synthesized)
3090--       Defined in types that are interfaces. True if interface is declared
3091--       synchronized, task, or protected, or is derived from a synchronized
3092--       interface.
3093
3094--    Is_Synchronized_State (synthesized)
3095--       Applies to all entities, true for abstract states that are subject to
3096--       option Synchronous.
3097
3098--    Is_Tag (Flag78)
3099--       Defined in E_Component and E_Constant entities. For regular tagged
3100--       type this flag is set on the tag component (whose name is Name_uTag).
3101--       For CPP_Class tagged types, this flag marks the pointer to the main
3102--       vtable (i.e. the one to be extended by derivation).
3103
3104--    Is_Tagged_Type (Flag55)
3105--       Defined in all entities, set for an entity that is a tagged type
3106
3107--    Is_Task_Interface (synthesized)
3108--       Defined in types that are interfaces. True if interface is declared as
3109--       a task interface, or if it is derived from task interfaces.
3110
3111--    Is_Task_Record_Type (synthesized)
3112--       Applies to all entities. True if Is_Concurrent_Record_Type
3113--       Corresponding_Concurrent_Type is a task type.
3114
3115--    Is_Task_Type (synthesized)
3116--       Applies to all entities. True for task types and subtypes
3117
3118--    Is_Thunk (Flag225)
3119--       Defined in all entities. True for subprograms that are thunks: that is
3120--       small subprograms built by the expander for tagged types that cover
3121--       interface types. As part of the runtime call to an interface, thunks
3122--       displace the pointer to the object (pointer named "this" in the C++
3123--       terminology) from a secondary dispatch table to the primary dispatch
3124--       table associated with a given tagged type; if the thunk is a function
3125--       that returns an object which covers an interface type then the thunk
3126--       displaces the pointer to the object from the primary dispatch table to
3127--       the secondary dispatch table associated with the interface type. Set
3128--       by Expand_Interface_Thunk and used by Expand_Call to handle extra
3129--       actuals associated with accessibility level.
3130
3131--    Is_Trivial_Subprogram (Flag235)
3132--       Defined in all entities. Set in subprograms where either the body
3133--       consists of a single null statement, or the first or only statement
3134--       of the body raises an exception. This is used for suppressing certain
3135--       warnings, see Sem_Ch6.Analyze_Subprogram_Body discussion for details.
3136
3137--    Is_True_Constant (Flag163)
3138--       Defined in all entities for constants and variables. Set in constants
3139--       and variables which have an initial value specified but which are
3140--       never assigned, partially or in the whole. For variables, it means
3141--       that the variable was initialized but never modified, and hence can be
3142--       treated as a constant by the code generator. For a constant, it means
3143--       that the constant was not modified by generated code (e.g. to set a
3144--       discriminant in an init proc). Assignments by user or generated code
3145--       will reset this flag. See also Is_Safe_To_Reevaluate.
3146
3147--    Is_Type (synthesized)
3148--       Applies to all entities, true for a type entity
3149
3150--    Is_Unchecked_Union (Flag117) [implementation base type only]
3151--       Defined in all entities. Set only in record types to which the
3152--       pragma Unchecked_Union has been validly applied.
3153
3154--    Is_Underlying_Record_View (Flag246) [base type only]
3155--       Defined in all entities. Set only in record types that represent the
3156--       underlying record view. This view is built for derivations of types
3157--       with unknown discriminants; it is a record with the same structure
3158--       as its corresponding record type, but whose parent is the full view
3159--       of the parent in the original type extension.
3160
3161--    Is_Unimplemented (Flag284)
3162--       Defined in all entities. Set for any entity to which a valid pragma
3163--       or aspect Unimplemented applies.
3164
3165--    Is_Unsigned_Type (Flag144)
3166--       Defined in all types, but can be set only for discrete and fixed-point
3167--       type and subtype entities. This flag is only valid if the entity is
3168--       frozen. If set it indicates that the representation is known to be
3169--       unsigned (i.e. that no negative values appear in the range). This is
3170--       normally just a reflection of the lower bound of the subtype or base
3171--       type, but there is one case in which the setting is non-obvious,
3172--       namely the case of an unsigned subtype of a signed type from which
3173--       a further subtype is obtained using variable bounds. This further
3174--       subtype is still unsigned, but this cannot be determined by looking
3175--       at its bounds or the bounds of the corresponding base type.
3176
3177--    Is_Uplevel_Referenced_Entity (Flag283)
3178--       Defined in all entities. Used when unnesting subprograms to indicate
3179--       that an entity is locally defined within a subprogram P, and there is
3180--       a reference to the entity within a subprogram nested within P (at any
3181--       depth). Set for uplevel referenced objects (variables, constants and
3182--       loop parameters), and also for upreferenced dynamic types, including
3183--       the cases where the reference is implicit (e.g. the type of an array
3184--       used for computing the location of an element in an array. This is
3185--       used internally in Exp_Unst, see this package for further details.
3186
3187--    Is_Valued_Procedure (Flag127)
3188--       Defined in procedure entities. Set if an Import_Valued_Procedure
3189--       or Export_Valued_Procedure pragma applies to the procedure entity.
3190
3191--    Is_Visible_Formal (Flag206)
3192--       Defined in all entities. Set for instances of the formals of a
3193--       formal package. Indicates that the entity must be made visible in the
3194--       body of the instance, to reproduce the visibility of the generic.
3195--       This simplifies visibility settings in instance bodies.
3196
3197--    Is_Visible_Lib_Unit (Flag116)
3198--       Defined in all (root or child) library unit entities. Once compiled,
3199--       library units remain chained to the entities in the parent scope, and
3200--       a separate flag must be used to indicate whether the names are visible
3201--       by selected notation, or not.
3202
3203--    Is_Volatile (Flag16)
3204--       Defined in all type entities, and also in constants, components and
3205--       variables. Set if a pragma Volatile applies to the entity. Also set
3206--       if pragma Shared or pragma Atomic applies to entity. In the case of
3207--       private or incomplete types, this flag is set in both the private
3208--       and full view. The flag is not set reliably on private subtypes,
3209--       and is always retrieved from the base type (but this is not a base-
3210--       type-only attribute because it applies to other entities). Note that
3211--       the backend should use Treat_As_Volatile, rather than Is_Volatile
3212--       to indicate code generation requirements for volatile variables.
3213--       Similarly, any front end test which is concerned with suppressing
3214--       optimizations on volatile objects should test Treat_As_Volatile
3215--       rather than testing this flag.
3216
3217--    Is_Volatile_Full_Access (Flag285)
3218--       Defined in all type entities, and also in constants, components, and
3219--       variables. Set if a pragma Volatile_Full_Access applies to the entity.
3220--       In the case of private and incomplete types, this flag is set in
3221--       both the partial view and the full view.
3222
3223--    Is_Wrapper_Package (synthesized)
3224--       Defined in package entities. Indicates that the package has been
3225--       created as a wrapper for a subprogram instantiation.
3226
3227--    Itype_Printed (Flag202)
3228--       Defined in all type and subtype entities. Set in Itypes if the Itype
3229--       has been printed by Sprint. This is used to avoid printing an Itype
3230--       more than once.
3231
3232--    Kill_Elaboration_Checks (Flag32)
3233--       Defined in all entities. Set by the expander to kill elaboration
3234--       checks which are known not to be needed. Equivalent in effect to
3235--       the use of pragma Suppress (Elaboration_Checks) for that entity
3236--       except that the effect is permanent and cannot be undone by a
3237--       subsequent pragma Unsuppress.
3238
3239--    Kill_Range_Checks (Flag33)
3240--       Defined in all entities. Equivalent in effect to the use of pragma
3241--       Suppress (Range_Checks) for that entity except that the result is
3242--       permanent and cannot be undone by a subsequent pragma Unsuppress.
3243--       This is currently only used in one odd situation in Sem_Ch3 for
3244--       record types, and it would be good to get rid of it???
3245
3246--    Known_To_Have_Preelab_Init (Flag207)
3247--       Defined in all type and subtype entities. If set, then the type is
3248--       known to have preelaborable initialization. In the case of a partial
3249--       view of a private type, it is only possible for this to be set if a
3250--       pragma Preelaborable_Initialization is given for the type. For other
3251--       types, it is never set if the type does not have preelaborable
3252--       initialization, it may or may not be set if the type does have
3253--       preelaborable initialization.
3254
3255--    Last_Aggregate_Assignment (Node30)
3256--       Applies to controlled constants and variables initialized by an
3257--       aggregate. Points to the last statement associated with the expansion
3258--       of the aggregate. The attribute is used by the finalization machinery
3259--       when marking an object as successfully initialized.
3260
3261--    Last_Assignment (Node26)
3262--       Defined in entities for variables, and OUT or IN OUT formals. Set for
3263--       a local variable or formal to point to the left side of an assignment
3264--       statement assigning a value to the variable. Cleared if the value of
3265--       the entity is referenced. Used to warn about dubious assignment
3266--       statements whose value is not used.
3267
3268--    Last_Entity (Node20)
3269--       Defined in all entities which act as scopes to which a list of
3270--       associated entities is attached (blocks, class subtypes and types,
3271--       entries, functions, loops, packages, procedures, protected objects,
3272--       record types and subtypes, private types, task types and subtypes).
3273--       Points to the last entry in the list of associated entities chained
3274--       through the Next_Entity field. Empty if no entities are chained.
3275
3276--    Last_Formal (synthesized)
3277--       Applies to subprograms and subprogram types, and also in entries
3278--       and entry families. Returns last formal of the subprogram or entry.
3279--       The formals are the first entities declared in a subprogram or in
3280--       a subprogram type (the designated type of an Access_To_Subprogram
3281--       definition) or in an entry.
3282
3283--    Limited_View (Node23)
3284--       Defined in non-generic package entities that are not instances. Bona
3285--       fide package with the limited-view list through the first_entity and
3286--       first_private attributes. The elements of this list are the shadow
3287--       entities created for the types and local packages that are declared
3288--       in a package appearing in a limited_with clause (Ada 2005: AI-50217).
3289
3290--    Linker_Section_Pragma (Node33)
3291--       Present in constant, variable, type and subprogram entities. Points
3292--       to a linker section pragma that applies to the entity, or is Empty if
3293--       no such pragma applies. Note that for constants and variables, this
3294--       field may be set as a result of a linker section pragma applied to the
3295--       type of the object.
3296
3297--    Lit_Indexes (Node18)
3298--       Defined in enumeration types and subtypes. Non-empty only for the
3299--       case of an enumeration root type, where it contains the entity for
3300--       the generated indexes entity. See unit Exp_Imgv for full details of
3301--       the nature and use of this entity for implementing the Image and
3302--       Value attributes for the enumeration type in question.
3303
3304--    Lit_Strings (Node16)
3305--       Defined in enumeration types and subtypes. Non-empty only for the
3306--       case of an enumeration root type, where it contains the entity for
3307--       the literals string entity. See unit Exp_Imgv for full details of
3308--       the nature and use of this entity for implementing the Image and
3309--       Value attributes for the enumeration type in question.
3310
3311--    Low_Bound_Tested (Flag205)
3312--       Defined in all entities. Currently this can only be set for formal
3313--       parameter entries of a standard unconstrained one-dimensional array
3314--       or string type. Indicates that an explicit test of the low bound of
3315--       the formal appeared in the code, e.g. in a pragma Assert. If this
3316--       flag is set, warnings about assuming the index low bound to be one
3317--       are suppressed.
3318
3319--    Machine_Radix_10 (Flag84)
3320--       Defined in decimal types and subtypes, set if the Machine_Radix is 10,
3321--       as the result of the specification of a machine radix representation
3322--       clause. Note that it is possible for this flag to be set without
3323--       having Has_Machine_Radix_Clause True. This happens when a type is
3324--       derived from a type with a clause present.
3325
3326--    Master_Id (Node17)
3327--       Defined in access types and subtypes. Empty unless Has_Task is set for
3328--       the designated type, in which case it points to the entity for the
3329--       Master_Id for the access type master. Also set for access-to-limited-
3330--       class-wide types whose root may be extended with task components, and
3331--       for access-to-limited-interfaces because they can be used to reference
3332--       tasks implementing such interface.
3333
3334--    Materialize_Entity (Flag168)
3335--       Defined in all entities. Set only for renamed obects which should be
3336--       materialized for debugging purposes. This means that a memory location
3337--       containing the renamed address should be allocated. This is needed so
3338--       that the debugger can find the entity.
3339
3340--    May_Inherit_Delayed_Rep_Aspects (Flag262)
3341--       Defined in all entities for types and subtypes. Set if the type is
3342--       derived from a type which has delayed rep aspects (marked by the flag
3343--       Has_Delayed_Rep_Aspects being set). In this case, at the freeze point
3344--       for the derived type we know that the parent type is frozen, and if
3345--       a given attribute has not been set for the derived type, we copy the
3346--       value from the parent type. See Freeze.Inherit_Delayed_Rep_Aspects.
3347
3348--    Mechanism (Uint8) (returned as Mechanism_Type)
3349--       Defined in functions and non-generic formal parameters. Indicates
3350--       the mechanism to be used for the function return or for the formal
3351--       parameter. See full description in the spec of Sem_Mech. This field
3352--       is also set (to the default value of zero = Default_Mechanism) in a
3353--       subprogram body entity but not used in this context.
3354
3355--    Modulus (Uint17) [base type only]
3356--       Defined in modular types. Contains the modulus. For the binary case,
3357--       this will be a power of 2, but if Non_Binary_Modulus is set, then it
3358--       will not be a power of 2.
3359
3360--    Must_Be_On_Byte_Boundary (Flag183)
3361--       Defined in entities for types and subtypes. Set if objects of the type
3362--       must always be allocated on a byte boundary (more accurately a storage
3363--       unit boundary). The front end checks that component clauses respect
3364--       this rule, and the backend ensures that record packing does not
3365--       violate this rule. Currently the flag is set only for packed arrays
3366--       longer than 64 bits where the component size is not a power of 2.
3367
3368--    Must_Have_Preelab_Init (Flag208)
3369--       Defined in entities for types and subtypes. Set in the full type of a
3370--       private type or subtype if a pragma Has_Preelaborable_Initialization
3371--       is present for the private type. Used to check that the full type has
3372--       preelaborable initialization at freeze time (this has to be deferred
3373--       to the freeze point because of the rule about overriding Initialize).
3374
3375--    Needs_Debug_Info (Flag147)
3376--       Defined in all entities. Set if the entity requires normal debugging
3377--       information to be generated. This is true of all entities that have
3378--       Comes_From_Source set, and also transitively for entities associated
3379--       with such components (e.g. their types). It is true for all entities
3380--       in Debug_Generated_Code mode (-gnatD switch). This is the flag that
3381--       the backend should check to determine whether or not to generate
3382--       debugging information for an entity. Note that callers should always
3383--       use Sem_Util.Set_Debug_Info_Needed, rather than Set_Needs_Debug_Info,
3384--       so that the flag is set properly on subsidiary entities.
3385
3386--    Needs_No_Actuals (Flag22)
3387--       Defined in callable entities (subprograms, entries, access to
3388--       subprograms)  which can be called without actuals because all of
3389--       their formals (if any) have default values. This flag simplifies the
3390--       resolution of the syntactic ambiguity involving a call to these
3391--       entities when the return type is an array type, and a call can be
3392--       interpreted as an indexing of the result of the call. It is also
3393--       used to resolve various cases of entry calls.
3394
3395--    Never_Set_In_Source (Flag115)
3396--       Defined in all entities, but can be set only for variables and
3397--       parameters. This flag is set if the object is never assigned a value
3398--       in user source code, either by assignment or by being used as an out
3399--       or in out parameter. Note that this flag is not reset from using an
3400--       initial value, so if you want to test for this case as well, test the
3401--       Has_Initial_Value flag also.
3402--
3403--       This flag is only for the purposes of issuing warnings, it must not
3404--       be used by the code generator to indicate that the variable is in
3405--       fact a constant, since some assignments in generated code do not
3406--       count (for example, the call to an init proc to assign some but
3407--       not all of the fields in a partially initialized record). The code
3408--       generator should instead use the flag Is_True_Constant.
3409--
3410--       For the purposes of this warning, the default assignment of access
3411--       variables to null is not considered the assignment of a value (so
3412--       the warning can be given for code that relies on this initial null
3413--       value when no other value is ever set).
3414--
3415--       In variables and out parameters, if this flag is set after full
3416--       processing of the corresponding declarative unit, it indicates that
3417--       the variable or parameter was never set, and a warning message can
3418--       be issued.
3419--
3420--       Note: this flag is initially set, and then cleared on encountering
3421--       any construct that might conceivably legitimately set the value.
3422--       Thus during the analysis of a declarative region and its associated
3423--       statement sequence, the meaning of the flag is "not set yet", and
3424--       once this analysis is complete the flag means "never assigned".
3425
3426--       Note: for variables appearing in package declarations, this flag is
3427--       never set. That is because there is no way to tell if some client
3428--       modifies the variable (or, in the case of variables in the private
3429--       part, if some child unit modifies the variables).
3430
3431--       Note: in the case of renamed objects, the flag must be set in the
3432--       ultimate renamed object. Clients noting a possible modification
3433--       should use the Note_Possible_Modification procedure in Sem_Util
3434--       rather than Set_Never_Set_In_Source precisely to deal properly with
3435--       the renaming possibility.
3436
3437--    Next_Component (synthesized)
3438--       Applies to record components. Returns the next component by following
3439--       the chain of declared entities until one is found which corresponds to
3440--       a component (Ekind is E_Component). Any internal types generated from
3441--       the subtype indications of the record components are skipped. Returns
3442--       Empty if no more components.
3443
3444--    Next_Component_Or_Discriminant (synthesized)
3445--      Similar to Next_Component, but includes components and discriminants
3446--      so the input can have either E_Component or E_Discriminant, and the
3447--      same is true for the result. Returns Empty if no more components or
3448--      discriminants in the record.
3449
3450--    Next_Discriminant (synthesized)
3451--       Applies to discriminants returned by First/Next_Discriminant. Returns
3452--       the next language-defined (ie: perhaps non-girder) discriminant by
3453--       following the chain of declared entities as long as the kind of the
3454--       entity corresponds to a discriminant. Note that the discriminants
3455--       might be the only components of the record. Returns Empty if there
3456--       are no more discriminants.
3457
3458--    Next_Entity (Node2)
3459--       Defined in all entities. The entities of a scope are chained, with
3460--       the head of the list being in the First_Entity field of the scope
3461--       entity. All entities use the Next_Entity field as a forward pointer
3462--       for this list, with Empty indicating the end of the list. Since this
3463--       field is in the base part of the entity, the access routines for this
3464--       field are in Sinfo.
3465
3466--    Next_Formal (synthesized)
3467--       Applies to the entity for a formal parameter. Returns the next formal
3468--       parameter of the subprogram or subprogram type. Returns Empty if there
3469--       are no more formals.
3470
3471--    Next_Formal_With_Extras (synthesized)
3472--       Applies to the entity for a formal parameter. Returns the next
3473--       formal parameter of the subprogram or subprogram type. Returns
3474--       Empty if there are no more formals. The list returned includes
3475--       all the extra formals (see description of Extra_Formal field)
3476
3477--    Next_Index (synthesized)
3478--       Applies to array types and subtypes and to string types and
3479--       subtypes. Yields the next index. The first index is obtained by
3480--       using the First_Index attribute, and then subsequent indexes are
3481--       obtained by applying Next_Index to the previous index. Empty is
3482--       returned to indicate that there are no more indexes. Note that
3483--       unlike most attributes in this package, Next_Index applies to
3484--       nodes for the indexes, not to entities.
3485
3486--    Next_Inlined_Subprogram (Node12)
3487--       Defined in subprograms. Used to chain inlined subprograms used in
3488--       the current compilation, in the order in which they must be compiled
3489--       by the backend to ensure that all inlinings are performed.
3490
3491--    Next_Literal (synthesized)
3492--       Applies to enumeration literals, returns the next literal, or
3493--       Empty if applied to the last literal. This is actually a synonym
3494--       for Next, but its use is preferred in this context.
3495
3496--    No_Dynamic_Predicate_On_Actual (Flag276)
3497--       Defined in discrete types. Set for generic formal types that are used
3498--       in loops and quantified expressions. The corresponing actual cannot
3499--       have dynamic predicates.
3500
3501--    No_Pool_Assigned (Flag131) [root type only]
3502--       Defined in access types. Set if a storage size clause applies to the
3503--       variable with a static expression value of zero. This flag is used to
3504--       generate errors if any attempt is made to allocate or free an instance
3505--       of such an access type. This is set only in the root type, since
3506--       derived types must have the same pool.
3507
3508--    No_Predicate_On_Actual (Flag275)
3509--       Defined in discrete types. Set for generic formal types that are used
3510--       in the spec of a generic package, in constructs that forbid discrete
3511--       types with predicates.
3512
3513--    No_Return (Flag113)
3514--       Defined in all entities. Always false except in the case of procedures
3515--       and generic procedures for which a pragma No_Return is given.
3516
3517--    No_Strict_Aliasing (Flag136) [base type only]
3518--       Defined in access types. Set to direct the backend to avoid any
3519--       optimizations based on an assumption about the aliasing status of
3520--       objects designated by the access type. For the case of the gcc
3521--       backend, the effect is as though all references to objects of
3522--       the type were compiled with -fno-strict-aliasing. This flag is
3523--       set if an unchecked conversion with the access type as a target
3524--       type occurs in the same source unit as the declaration of the
3525--       access type, or if an explicit pragma No_Strict_Aliasing applies.
3526
3527--    No_Tagged_Streams_Pragma (Node32)
3528--       Present in all subtype and type entities. Set for tagged types and
3529--       subtypes (i.e. entities with Is_Tagged_Type set True) if a valid
3530--       pragma/aspect applies to the type.
3531
3532--    Non_Binary_Modulus (Flag58) [base type only]
3533--       Defined in all subtype and type entities. Set for modular integer
3534--       types if the modulus value is other than a power of 2.
3535
3536--    Non_Limited_View (Node19)
3537--       Defined in abstract states and incomplete types that act as shadow
3538--       entities created when analysing a limited with clause (Ada 2005:
3539--       AI-50217). Points to the defining entity of the original declaration.
3540
3541--    Nonzero_Is_True (Flag162) [base type only]
3542--       Defined in enumeration types. Set if any non-zero value is to be
3543--       interpreted as true. Currently this is set for derived Boolean
3544--       types which have a convention of C, C++ or Fortran.
3545
3546--    Normalized_First_Bit (Uint8)
3547--       Defined in components and discriminants. Indicates the normalized
3548--       value of First_Bit for the component, i.e. the offset within the
3549--       lowest addressed storage unit containing part or all of the field.
3550--       Set to No_Uint if no first bit position is assigned yet.
3551
3552--    Normalized_Position (Uint14)
3553--       Defined in components and discriminants. Indicates the normalized
3554--       value of Position for the component, i.e. the offset in storage
3555--       units from the start of the record to the lowest addressed storage
3556--       unit containing part or all of the field.
3557
3558--    Normalized_Position_Max (Uint10)
3559--       Defined in components and discriminants. For almost all cases, this
3560--       is the same as Normalized_Position. The one exception is for the case
3561--       of a discriminated record containing one or more arrays whose length
3562--       depends on discriminants. In this case, the Normalized_Position_Max
3563--       field represents the maximum possible value of Normalized_Position
3564--       assuming min/max values for discriminant subscripts in all fields.
3565--       This is used by Layout in front end layout mode to properly computed
3566--       the maximum size such records (needed for allocation purposes when
3567--       there are default discriminants, and also for the 'Size value).
3568
3569--    Number_Dimensions (synthesized)
3570--       Applies to array types and subtypes. Returns the number of dimensions
3571--       of the array type or subtype as a value of type Pos.
3572
3573--    Number_Entries (synthesized)
3574--       Applies to concurrent types. Returns the number of entries that are
3575--       declared within the task or protected definition for the type.
3576
3577--    Number_Formals (synthesized)
3578--       Applies to subprograms and subprogram types. Yields the number of
3579--       formals as a value of type Pos.
3580
3581--    OK_To_Rename (Flag247)
3582--       Defined only in entities for variables. If this flag is set, it
3583--       means that if the entity is used as the initial value of an object
3584--       declaration, the object declaration can be safely converted into a
3585--       renaming to avoid an extra copy. This is set for variables which are
3586--       generated by the expander to hold the result of evaluating some
3587--       expression. Most notably, the local variables used to store the result
3588--       of concatenations are so marked (see Exp_Ch4.Expand_Concatenate). It
3589--       is only worth setting this flag for composites, since for primitive
3590--       types, it is cheaper to do the copy.
3591
3592--    OK_To_Reorder_Components (Flag239) [base type only]
3593--       Defined in record types. Set if the backend is permitted to reorder
3594--       the components. If not set, the record must be layed out in the order
3595--       in which the components are declared textually. Currently this flag
3596--       can only be set by debug switches.
3597
3598--    Optimize_Alignment_Space (Flag241)
3599--       Defined in type, subtype, variable, and constant entities. This
3600--       flag records that the type or object is to be layed out in a manner
3601--       consistent with Optimize_Alignment (Space) mode. The compiler and
3602--       binder ensure a consistent view of any given type or object. If pragma
3603--       Optimize_Alignment (Off) mode applies to the type/object, then neither
3604--       of the flags Optimize_Alignment_Space/Optimize_Alignment_Time is set.
3605
3606--    Optimize_Alignment_Time (Flag242)
3607--       Defined in type, subtype, variable, and constant entities. This
3608--       flag records that the type or object is to be layed out in a manner
3609--       consistent with Optimize_Alignment (Time) mode. The compiler and
3610--       binder ensure a consistent view of any given type or object. If pragma
3611--       Optimize_Alignment (Off) mode applies to the type/object, then neither
3612--       of the flags Optimize_Alignment_Space/Optimize_Alignment_Time is set.
3613
3614--    Original_Access_Type (Node28)
3615--       Defined in E_Access_Subprogram_Type entities. Set only if the access
3616--       type was generated by the expander as part of processing an access
3617--       to protected subprogram type. Points to the access to protected
3618--       subprogram type.
3619
3620--    Original_Array_Type (Node21)
3621--       Defined in modular types and array types and subtypes. Set only if
3622--       the Is_Packed_Array_Impl_Type flag is set, indicating that the type
3623--       is the implementation type for a packed array, and in this case it
3624--       points to the original array type for which this is the packed
3625--       array implementation type.
3626
3627--    Original_Record_Component (Node22)
3628--       Defined in components, including discriminants. The usage depends
3629--       on whether the record is a base type and whether it is tagged.
3630--
3631--       In base tagged types:
3632--         When the component is inherited in a record extension, it points
3633--         to the original component (the entity of the ancestor component
3634--         which is not itself inherited) otherwise it points to itself. The
3635--         backend uses this attribute to implement the automatic dereference
3636--         in the extension and to apply the transformation:
3637--
3638--            Rec_Ext.Comp -> Rec_Ext.Parent. ... .Parent.Comp
3639--
3640--       In base untagged types:
3641--         Always points to itself except for non-girder discriminants, where
3642--         it points to the girder discriminant it renames.
3643--
3644--       In subtypes (tagged and untagged):
3645--         Points to the component in the base type.
3646
3647--    Overlays_Constant (Flag243)
3648--       Defined in all entities. Set only for E_Constant or E_Variable for
3649--       which there is an address clause that causes the entity to overlay
3650--       a constant object.
3651
3652--    Overridden_Operation (Node26)
3653--       Defined in subprograms. For overriding operations, points to the
3654--       user-defined parent subprogram that is being overridden. Note: this
3655--       attribute uses the same field as Static_Initialization. The latter
3656--       is only defined for internal initialization procedures, for which
3657--       Overridden_Operation is irrelevant. Thus this attribute must not be
3658--       set for init_procs.
3659
3660--    Package_Instantiation (Node26)
3661--       Defined in packages and generic packages. When defined, this field
3662--       references an N_Generic_Instantiation node associated with an
3663--       instantiated package. In the case where the referenced node has
3664--       been rewritten to an N_Package_Specification, the instantiation
3665--       node is available from the Original_Node field of the package spec
3666--       node. This is currently not guaranteed to be set in all cases, but
3667--       when set, the field is used in Get_Package_Instantiation_Node as
3668--       one of the means of obtaining the instantiation node. Eventually
3669--       it should be set in all cases, including package entities associated
3670--       with formal packages. ???
3671
3672--    Packed_Array_Impl_Type (Node23)
3673--       Defined in array types and subtypes, including the string literal
3674--       subtype case, if the corresponding type is packed (either bit packed
3675--       or packed to eliminate holes in non-contiguous enumeration type index
3676--       types). References the type used to represent the packed array, which
3677--       is either a modular type for short static arrays, or an array of
3678--       System.Unsigned. Note that in some situations (internal types, and
3679--       references to fields of variant records), it is not always possible
3680--       to construct this type in advance of its use. If this field is empty,
3681--       then the necessary type is declared on the fly for each reference to
3682--       the array.
3683
3684--    Parameter_Mode (synthesized)
3685--       Applies to formal parameter entities. This is a synonym for Ekind,
3686--       used when obtaining the formal kind of a formal parameter (the result
3687--       is one of E_[In/Out/In_Out]_Parameter).
3688
3689--    Parent_Subtype (Node19) [base type only]
3690--       Defined in E_Record_Type. Set only for derived tagged types, in which
3691--       case it points to the subtype of the parent type. This is the type
3692--       that is used as the Etype of the _parent field.
3693
3694--    Part_Of_Constituents (Elist10)
3695--       Present in abstract state and variable entities. Contains all
3696--       constituents that are subject to indicator Part_Of (both aspect and
3697--       option variants).
3698
3699--    Part_Of_References (Elist11)
3700--       Present in variable entities. Contains all references to the variable
3701--       when it is subject to pragma Part_Of. If the variable is a constituent
3702--       of a single protected/task type, the references are examined as they
3703--       must appear only within the type defintion and the corresponding body.
3704
3705--    Partial_View_Has_Unknown_Discr (Flag280)
3706--       Present in all types. Set to Indicate that the partial view of a type
3707--       has unknown discriminants. A default initialization of an object of
3708--       the type does not require an invariant check (AI12-0133).
3709
3710--    Pending_Access_Types (Elist15)
3711--       Defined in all types. Set for incomplete, private, Taft-amendment
3712--       types, and their corresponding full views. This list contains all
3713--       access types, both named and anonymous, declared between the partial
3714--       and the full view. The list is used by the finalization machinery to
3715--       ensure that the finalization masters of all pending access types are
3716--       fully initialized when the full view is frozen.
3717
3718--    Postconditions_Proc (Node14)
3719--       Defined in functions, procedures, entries, and entry families. Refers
3720--       to the entity of the _Postconditions procedure used to check contract
3721--       assertions on exit from a subprogram.
3722
3723--    Predicate_Function (synthesized)
3724--       Defined in all types. Set for types for which (Has_Predicates is True)
3725--       and for which a predicate procedure has been built that tests that the
3726--       specified predicates are True. Contains the entity for the function
3727--       which takes a single argument of the given type, and returns True if
3728--       the predicate holds and False if it does not.
3729--
3730--       Note: the reason this is marked as a synthesized attribute is that the
3731--       way this is stored is as an element of the Subprograms_For_Type field.
3732
3733--    Predicate_Function_M (synthesized)
3734--       Defined in all types. Present only if Predicate_Function is present,
3735--       and only if the predicate function has Raise_Expression nodes. It
3736--       is the special version created for membership tests, where if one of
3737--       these raise expressions is executed, the result is to return False.
3738
3739--    Primitive_Operations (synthesized)
3740--       Defined in concurrent types, tagged record types and subtypes, tagged
3741--       private types and tagged incomplete types. For concurrent types whose
3742--       Corresponding_Record_Type (CRT) is available, returns the list of
3743--       Direct_Primitive_Operations of its CRT; otherwise returns No_Elist.
3744--       For all the other types returns the Direct_Primitive_Operations.
3745
3746--    Prival (Node17)
3747--       Defined in private components of protected types. Refers to the entity
3748--       of the component renaming declaration generated inside protected
3749--       subprograms, entries or barrier functions.
3750
3751--    Prival_Link (Node20)
3752--       Defined in constants and variables which rename private components of
3753--       protected types. Set to the original private component.
3754
3755--    Private_Dependents (Elist18)
3756--       Defined in private (sub)types. Records the subtypes of the private
3757--       type, derivations from it, and records and arrays with components
3758--       dependent on the type.
3759--
3760--       The subtypes are traversed when installing and deinstalling (the full
3761--       view of) a private type in order to ensure correct view of the
3762--       subtypes.
3763--
3764--       Used in similar fashion for incomplete types: holds list of subtypes
3765--       of these incomplete types that have discriminant constraints. The
3766--       full views of these subtypes are constructed when the full view of
3767--       the incomplete type is processed.
3768
3769--       In addition, if the incomplete type is the designated type in an
3770--       access definition for an access parameter, the operation may be
3771--       a dispatching primitive operation, which is only known when the full
3772--       declaration of the type is seen. Subprograms that have such an
3773--       access parameter are also placed in the list of private_dependents.
3774
3775--    Private_View (Node22)
3776--       For each private type, three entities are allocated, the private view,
3777--       the full view, and the shadow entity. The shadow entity contains a
3778--       copy of the private view and is used for restoring the proper private
3779--       view after a region in which the full view is visible (and is copied
3780--       into the entity normally used for the private view during this period
3781--       of visibility). The Private_View field is self-referential when the
3782--       private view lives in its normal entity, but in the copy that is made
3783--       in the shadow entity, it points to the proper location in which to
3784--       restore the private view saved in the shadow.
3785
3786--    Protected_Body_Subprogram (Node11)
3787--       Defined in protected operations. References the entity for the
3788--       subprogram which implements the body of the operation.
3789
3790--    Protected_Formal (Node22)
3791--       Defined in formal parameters (in, in out and out parameters). Used
3792--       only for formals of protected operations. References corresponding
3793--       formal parameter in the unprotected version of the operation that
3794--       is created during expansion.
3795
3796--    Protection_Object (Node23)
3797--       Applies to protected entries, entry families and subprograms. Denotes
3798--       the entity which is used to rename the _object component of protected
3799--       types.
3800
3801--    Reachable (Flag49)
3802--       Defined in labels. The flag is set over the range of statements in
3803--       which a goto to that label is legal.
3804
3805--    Referenced (Flag156)
3806--       Defined in all entities. Set if the entity is referenced, except for
3807--       the case of an appearance of a simple variable that is not a renaming
3808--       as the left side of an assignment in which case Referenced_As_LHS is
3809--       set instead, or a similar appearance as an out parameter actual, in
3810--       which case Referenced_As_Out_Parameter is set.
3811
3812--    Referenced_As_LHS (Flag36):
3813--       Defined in all entities. This flag is set instead of Referenced if a
3814--       simple variable that is not a renaming appears as the left side of an
3815--       assignment. The reason we distinguish this kind of reference is that
3816--       we have a separate warning for variables that are only assigned and
3817--       never read.
3818
3819--    Referenced_As_Out_Parameter (Flag227):
3820--       Defined in all entities. This flag is set instead of Referenced if a
3821--       simple variable that is not a renaming appears as an actual for an out
3822--       formal. The reason we distinguish this kind of reference is that
3823--       we have a separate warning for variables that are only assigned and
3824--       never read, and out parameters are a special case.
3825
3826--    Refinement_Constituents (Elist8)
3827--       Present in abstract state entities. Contains all the constituents that
3828--       refine the state, in other words, all the hidden states that appear in
3829--       the constituent_list of aspect/pragma Refined_State.
3830
3831--    Register_Exception_Call (Node20)
3832--       Defined in exception entities. When an exception is declared,
3833--       a call is expanded to Register_Exception. This field points to
3834--       the expanded N_Procedure_Call_Statement node for this call. It
3835--       is used for Import/Export_Exception processing to modify the
3836--       register call to make appropriate entries in the special tables
3837--       used for handling these pragmas at runtime.
3838
3839--    Related_Array_Object (Node25)
3840--       Defined in array types and subtypes. Used only for the base type
3841--       and subtype created for an anonymous array object. Set to point
3842--       to the entity of the corresponding array object. Currently used
3843--       only for type-related error messages.
3844
3845--    Related_Expression (Node24)
3846--       Defined in variables and types. When Set for internally generated
3847--       entities, it may be used to denote the source expression whose
3848--       elaboration created the variable declaration. If set, it is used
3849--       for generating clearer messages from CodePeer. It is used on source
3850--       entities that are variables in iterator specifications, to provide
3851--       a link to the container that is the domain of iteration. This allows
3852--       for better cross-reference information when the loop modifies elements
3853--       of the container, and suppresses spurious warnings.
3854--
3855--       Shouldn't it also be used for the same purpose in errout? It seems
3856--       odd to have two mechanisms here???
3857
3858--    Related_Instance (Node15)
3859--       Defined in the wrapper packages created for subprogram instances.
3860--       The internal subprogram that implements the instance is inside the
3861--       wrapper package, but for debugging purposes its external symbol
3862--       must correspond to the name and scope of the related instance.
3863
3864--    Related_Type (Node27)
3865--       Defined in components, constants and variables. Set when there is an
3866--       associated dispatch table to point to entities containing primary or
3867--       secondary tags. Not set in the _tag component of record types.
3868
3869--    Relative_Deadline_Variable (Node28) [implementation base type only]
3870--       Defined in task type entities. This flag is set if a valid and
3871--       effective pragma Relative_Deadline applies to the base type. Points
3872--       to the entity for a variable that is created to hold the value given
3873--       in a Relative_Deadline pragma for a task type.
3874
3875--    Renamed_Entity (Node18)
3876--       Defined in exceptions, packages, subprograms, and generic units. Set
3877--       for entities that are defined by a renaming declaration. Denotes the
3878--       renamed entity, or transitively the ultimate renamed entity if
3879--       there is a chain of renaming declarations. Empty if no renaming.
3880
3881--    Renamed_In_Spec (Flag231)
3882--       Defined in package entities. If a package renaming occurs within
3883--       a package spec, then this flag is set on the renamed package. The
3884--       purpose is to prevent a warning about unused entities in the renamed
3885--       package. Such a warning would be inappropriate since clients of the
3886--       package can see the entities in the package via the renaming.
3887
3888--    Renamed_Object (Node18)
3889--       Defined in all objects (constants, variables, components, formal
3890--       parameters, generic formal parameters, and loop parameters).
3891--       ??? Defined in discriminants?
3892--       Set non-Empty if the object was declared by a renaming declaration,
3893--       in which case it references the tree node for the name of the renamed
3894--       object. This is only possible for the variable and constant cases.
3895--       For formal parameters, this field is used in the course of inline
3896--       expansion, to map the formals of a subprogram into the corresponding
3897--       actuals. For formals of a task entry, it denotes the local renaming
3898--       that replaces the actual within the accept statement. The field is
3899--       Empty otherwise (it is always empty for loop parameters).
3900
3901--    Renaming_Map (Uint9)
3902--       Defined in generic subprograms, generic packages, and their
3903--       instances. Also defined in the instances of the corresponding
3904--       bodies. Denotes the renaming map (generic entities => instance
3905--       entities) used to construct the instance by givin an index into
3906--       the tables used to represent these maps. See Sem_Ch12 for further
3907--       details. The maps for package instances are also used when the
3908--       instance is the actual corresponding to a formal package.
3909
3910--    Requires_Overriding (Flag213)
3911--       Defined in all subprograms and entries. Set for subprograms that
3912--       require overriding as defined by RM-2005-3.9.3(6/2). Note that this
3913--       is True only for implicitly declared subprograms; it is not set on the
3914--       parent type's subprogram. See also Is_Abstract_Subprogram.
3915
3916--    Return_Applies_To (Node8)
3917--       Defined in E_Return_Statement. Points to the entity representing
3918--       the construct to which the return statement applies, as defined in
3919--       RM-6.5(4/2). Note that a (simple) return statement within an
3920--       extended_return_statement applies to the extended_return_statement,
3921--       even though it causes the whole function to return.
3922
3923--    Return_Present (Flag54)
3924--       Defined in function and generic function entities. Set if the
3925--       function contains a return statement (used for error checking).
3926--       This flag can also be set in procedure and generic procedure
3927--       entities (for convenience in setting it), but is only tested
3928--       for the function case.
3929
3930--    Returns_By_Ref (Flag90)
3931--       Defined in function entities. Set if the function returns the result
3932--       by reference, either because its return type is a by-reference-type
3933--       or because the function explicitly uses the secondary stack.
3934
3935--    Returns_Limited_View (Flag134)
3936--       Defined in function entities. Set if the return type of the function
3937--       at the point of definition is a limited view. Used to handle the late
3938--       freezing of the function when it is called in the current semantic
3939--       unit while it is still unfrozen.
3940
3941--    Reverse_Bit_Order (Flag164) [base type only]
3942--       Defined in all record type entities. Set if entity has a Bit_Order
3943--       aspect (set by an aspect clause or attribute definition clause) that
3944--       has reversed the order of bits from the default value. When this flag
3945--       is set, a component clause must specify a set of bits entirely within
3946--       a single storage unit (Ada 95) or within a single machine scalar (see
3947--       Ada 2005 AI-133), or must occupy an integral number of storage units.
3948
3949--    Reverse_Storage_Order (Flag93) [base type only]
3950--       Defined in all record and array type entities. Set if entity has a
3951--       Scalar_Storage_Order aspect (set by an aspect clause or attribute
3952--       definition clause) that has reversed the order of storage elements
3953--       from the default value. When this flag is set for a record type,
3954--       the Bit_Order aspect must be set to the same value (either explicitly
3955--       or as the target default value).
3956
3957--    Rewritten_For_C (Flag287)
3958--       Defined on functions that return a constrained array type, when
3959--       Modify_Tree_For_C is set. Indicates that a procedure with an extra
3960--       out parameter has been created for it, and calls must be rewritten as
3961--       calls to the new procedure.
3962
3963--    RM_Size (Uint13)
3964--       Defined in all type and subtype entities. Contains the value of
3965--       type'Size as defined in the RM. See also the Esize field and
3966--       and the description on "Handling of Type'Size Values". A value
3967--       of zero in this field for a non-discrete type means that
3968--       the front end has not yet determined the size value. For the
3969--       case of a discrete type, this field is always set by the front
3970--       end and zero is a legitimate value for a type with one value.
3971
3972--    Root_Type (synthesized)
3973--       Applies to all type entities. For class-wide types, returns the root
3974--       type of the class covered by the CW type, otherwise returns the
3975--       ultimate derivation ancestor of the given type. This function
3976--       preserves the view, i.e. the Root_Type of a partial view is the
3977--       partial view of the ultimate ancestor, the Root_Type of a full view
3978--       is the full view of the ultimate ancestor. Note that this function
3979--       does not correspond exactly to the use of root type in the RM, since
3980--       in the RM root type applies to a class of types, not to a type.
3981
3982--    Scalar_Range (Node20)
3983--       Defined in all scalar types (including modular types, where the
3984--       bounds are 0 .. modulus - 1). References a node in the tree that
3985--       contains the bounds for the range. Note that this information
3986--       could be obtained by rummaging around the tree, but it is more
3987--       convenient to have it immediately at hand in the entity. The
3988--       contents of Scalar_Range can either be an N_Subtype_Indication
3989--       node (with a constraint), or a Range node, but not a simple
3990--       subtype reference (a subtype is converted into a range).
3991
3992--    Scale_Value (Uint16)
3993--       Defined in decimal fixed-point types and subtypes. Contains the scale
3994--       for the type (i.e. the value of type'Scale = the number of decimal
3995--       digits after the decimal point).
3996
3997--    Scope (Node3)
3998--       Defined in all entities. Points to the entity for the scope (block,
3999--       loop, subprogram, package etc.) in which the entity is declared.
4000--       Since this field is in the base part of the entity node, the access
4001--       routines for this field are in Sinfo. Note that for a child unit,
4002--       the Scope will be the parent package, and for a root library unit,
4003--       the Scope will be Standard.
4004
4005--    Scope_Depth (synthesized)
4006--       Applies to program units, blocks, concurrent types and entries, and
4007--       also to record types, i.e. to any entity that can appear on the scope
4008--       stack. Yields the scope depth value, which for those entities other
4009--       than records is simply the scope depth value, for record entities, it
4010--       is the Scope_Depth of the record scope.
4011
4012--    Scope_Depth_Value (Uint22)
4013--       Defined in program units, blocks, concurrent types, and entries.
4014--       Indicates the number of scopes that statically enclose the declaration
4015--       of the unit or type. Library units have a depth of zero. Note that
4016--       record types can act as scopes but do NOT have this field set (see
4017--       Scope_Depth above).
4018
4019--    Scope_Depth_Set (synthesized)
4020--       Applies to a special predicate function that returns a Boolean value
4021--       indicating whether or not the Scope_Depth field has been set. It is
4022--       needed, since returns an invalid value in this case.
4023
4024--    Sec_Stack_Needed_For_Return (Flag167)
4025--       Defined in scope entities (blocks, functions, procedures, tasks,
4026--       entries). Set to True when secondary stack is used to hold the
4027--       returned value of a function and thus should not be released on
4028--       scope exit.
4029
4030--    Shadow_Entities (List14)
4031--       Defined in package and generic package entities. Points to a list
4032--       of entities that correspond to private types. For each private type
4033--       a shadow entity is created that holds a copy of the private view.
4034--       In regions of the program where the full views of these private
4035--       entities are visible, the full view is copied into the entity that
4036--       is normally used to hold the private view, but the shadow entity
4037--       copy is unchanged. The shadow entities are then used to restore the
4038--       original private views at the end of the region. This list is a
4039--       standard format list (i.e. First (Shadow_Entities) is the first
4040--       entry and subsequent entries are obtained using Next.
4041
4042--    Shared_Var_Procs_Instance (Node22)
4043--       Defined in variables. Set non-Empty only if Is_Shared_Passive is
4044--       set, in which case this is the entity for the associated instance of
4045--       System.Shared_Storage.Shared_Var_Procs. See Exp_Smem for full details.
4046
4047--    Size_Check_Code (Node19)
4048--       Defined in constants and variables. Normally Empty. Set if code is
4049--       generated to check the size of the object. This field is used to
4050--       suppress this code if a subsequent address clause is encountered.
4051
4052--    Size_Clause (synthesized)
4053--       Applies to all entities. If a size clause is present in the rep
4054--       item chain for an entity then the attribute definition clause node
4055--       for the size clause is returned. Otherwise Size_Clause returns Empty
4056--       if no item is present. Usually this is only meaningful if the flag
4057--       Has_Size_Clause is set. This is because when the representation item
4058--       chain is copied for a derived type, it can inherit a size clause that
4059--       is not applicable to the entity.
4060
4061--    Size_Depends_On_Discriminant (Flag177)
4062--       Defined in all entities for types and subtypes. Indicates that the
4063--       size of the type depends on the value of one or more discriminants.
4064--       Currently, this flag is only set for arrays which have one or more
4065--       bounds depending on a discriminant value.
4066
4067--    Size_Known_At_Compile_Time (Flag92)
4068--       Defined in all entities for types and subtypes. Indicates that the
4069--       size of objects of the type is known at compile time. This flag is
4070--       used to optimize some generated code sequences, and also to enable
4071--       some error checks (e.g. disallowing component clauses on variable
4072--       length objects). It is set conservatively (i.e. if it is True, the
4073--       size is certainly known at compile time, if it is False, then the
4074--       size may or may not be known at compile time, but the code will
4075--       assume that it is not known). Note that the value may be known only
4076--       to the back end, so the fact that this flag is set does not mean that
4077--       the front end can access the value.
4078
4079--    Small_Value (Ureal21)
4080--       Defined in fixed point types. Points to the universal real for the
4081--       Small of the type, either as given in a representation clause, or
4082--       as computed (as a power of two) by the compiler.
4083
4084--    SPARK_Aux_Pragma (Node41)
4085--       Present in concurrent type, [generic] package spec and package body
4086--       entities. For concurrent types and package specs it refers to the
4087--       SPARK mode setting for the private part. This field points to the
4088--       N_Pragma node that either appears in the private part or is inherited
4089--       from the enclosing context. For package bodies, it refers to the SPARK
4090--       mode of the elaboration sequence after the BEGIN. The fields points to
4091--       the N_Pragma node that either appears in the statement sequence or is
4092--       inherited from the enclosing context. In all cases, if the pragma is
4093--       inherited, then the SPARK_Aux_Pragma_Inherited flag is set.
4094
4095--    SPARK_Aux_Pragma_Inherited (Flag266)
4096--       Present in concurrent type, [generic] package spec and package body
4097--       entities. Set if the SPARK_Aux_Pragma field points to a pragma that is
4098--       inherited, rather than a local one.
4099
4100--    SPARK_Pragma (Node40)
4101--       Present in concurrent type, entry, operator, [generic] package,
4102--       package body, [generic] subprogram, subprogram body and variable
4103--       entities. Points to the N_Pragma node that applies to the initial
4104--       declaration or body. This is either set by a local SPARK_Mode pragma
4105--       or is inherited from the context (from an outer scope for the spec
4106--       case or from the spec for the body case). In the case where it is
4107--       inherited the flag SPARK_Pragma_Inherited is set. Empty if no
4108--       SPARK_Mode pragma is applicable.
4109
4110--    SPARK_Pragma_Inherited (Flag265)
4111--       Present in concurrent type, entry, operator, [generic] package,
4112--       package body, [generic] subprogram, subprogram body and variable
4113--       entities. Set if the SPARK_Pragma attribute points to a pragma that is
4114--       inherited, rather than a local one.
4115
4116--    Spec_Entity (Node19)
4117--       Defined in package body entities. Points to corresponding package
4118--       spec entity. Also defined in subprogram body parameters in the
4119--       case where there is a separate spec, where this field references
4120--       the corresponding parameter entities in the spec.
4121
4122--    SSO_Set_High_By_Default (Flag273) [base type only]
4123--       Defined for record and array types. Set in the base type if a pragma
4124--       Default_Scalar_Storage_Order (High_Order_First) was active at the time
4125--       the record or array was declared and therefore applies to it.
4126
4127--    SSO_Set_Low_By_Default (Flag272) [base type only]
4128--       Defined for record and array types. Set in the base type if a pragma
4129--       Default_Scalar_Storage_Order (High_Order_First) was active at the time
4130--       the record or array was declared and therefore applies to it.
4131
4132--    Static_Discrete_Predicate (List25)
4133--       Defined in discrete types/subtypes with static predicates (with the
4134--       two flags Has_Predicates and Has_Static_Predicate set). Set if the
4135--       type/subtype has a static predicate. Points to a list of expression
4136--       and N_Range nodes that represent the predicate in canonical form. The
4137--       canonical form has entries sorted in ascending order, with duplicates
4138--       eliminated, and adjacent ranges coalesced, so that there is always a
4139--       gap in the values between successive entries. The entries in this list
4140--       are fully analyzed and typed with the base type of the subtype. Note
4141--       that all entries are static and have values within the subtype range.
4142
4143--    Static_Elaboration_Desired (Flag77)
4144--       Defined in library-level packages. Set by the pragma of the same
4145--       name, to indicate that static initialization must be attempted for
4146--       all types declared in the package, and that a warning must be emitted
4147--       for those types to which static initialization is not available.
4148
4149--    Static_Initialization (Node30)
4150--       Defined in initialization procedures for types whose objects can be
4151--       initialized statically. The value of this attribute is a positional
4152--       aggregate whose components are compile-time static values. Used
4153--       when available in object declarations to eliminate the call to the
4154--       initialization procedure, and to minimize elaboration code. Note:
4155--       This attribute uses the same field as Overridden_Operation, which is
4156--       irrelevant in init_procs.
4157
4158--    Static_Real_Or_String_Predicate (Node25)
4159--       Defined in real types/subtypes with static predicates (with the two
4160--       flags Has_Predicates and Has_Static_Predicate set). Set if the type
4161--       or subtype has a static predicate. Points to the return expression
4162--       of the predicate function. This is the original expression given as
4163--       the predicate except that occurrences of the type are replaced by
4164--       occurrences of the formal parameter of the predicate function (note
4165--       that the spec of this function including this formal parameter name)
4166--       is available from the Subprograms_For_Type field (it can be accessed
4167--       as Predicate_Function (typ). Also, in the case where a predicate is
4168--       inherited, the expression is of the form:
4169--
4170--         xxxPredicate (typ2 (ent)) AND THEN expression
4171--
4172--       where typ2 is the type from which the predicate is inherited, ent is
4173--       the entity for the current predicate function, and xxxPredicate is the
4174--       inherited predicate (from typ2). Finally for a predicate that inherits
4175--       from another predicate but does not add a predicate of its own, the
4176--       expression may consist of the above xxxPredicate call on its own.
4177
4178--    Status_Flag_Or_Transient_Decl (Node15)
4179--       Defined in variables and constants. Applies to objects that require
4180--       special treatment by the finalization machinery, such as extended
4181--       return results, IF and CASE expression results, and objects inside
4182--       N_Expression_With_Actions nodes. The attribute contains the entity
4183--       of a flag which specifies particular behavior over a region of code
4184--       or the declaration of a "hook" object.
4185--       In which case is it a flag, or a hook object???
4186
4187--    Storage_Size_Variable (Node26) [implementation base type only]
4188--       Defined in access types and task type entities. This flag is set
4189--       if a valid and effective pragma Storage_Size applies to the base
4190--       type. Points to the entity for a variable that is created to
4191--       hold the value given in a Storage_Size pragma for an access
4192--       collection or a task type. Note that in the access type case,
4193--       this field is defined only in the root type (since derived types
4194--       share the same storage pool).
4195
4196--    Stored_Constraint (Elist23)
4197--       Defined in entities that can have discriminants (concurrent types
4198--       subtypes, record types and subtypes, private types and subtypes,
4199--       limited private types and subtypes and incomplete types). Points
4200--       to an element list containing the expressions for each of the
4201--       stored discriminants for the record (sub)type.
4202
4203--    Stores_Attribute_Old_Prefix (Flag270)
4204--       Defined in constants. Set when the constant has been generated to save
4205--       the value of attribute 'Old's prefix.
4206
4207--    Strict_Alignment (Flag145) [implementation base type only]
4208--       Defined in all type entities. Indicates that some containing part
4209--       is either aliased or tagged. This prohibits packing the object
4210--       tighter than its natural size and alignment.
4211
4212--    String_Literal_Length (Uint16)
4213--       Defined in string literal subtypes (which are created to correspond
4214--       to string literals in the program). Contains the length of the string
4215--       literal.
4216
4217--    String_Literal_Low_Bound (Node18)
4218--       Defined in string literal subtypes (which are created to correspond
4219--       to string literals in the program). Contains an expression whose
4220--       value represents the low bound of the literal. This is a copy of
4221--       the low bound of the applicable index constraint if there is one,
4222--       or a copy of the low bound of the index base type if not.
4223
4224--    Subprograms_For_Type (Node29)
4225--       Defined in all type and subprogram entities. This is used to hold
4226--       a list of subprogram entities for subprograms associated with the
4227--       type, linked through the Subprograms_For_Type field of the subprogram
4228--       entity. Basically this is a way of multiplexing the single field to
4229--       hold more than one entity (since we ran out of space in some type
4230--       entities). This is currently used for Invariant_Procedure and also
4231--       for Predicate_Function, and clients will always use the latter two
4232--       names to access entries in this list.
4233
4234--    Subps_Index (Uint24)
4235--       Present in subprogram entries. Set if the subprogram contains nested
4236--       subprograms, or is a subprogram nested within such a subprogram. Holds
4237--       the index in the Exp_Unst.Subps table for the subprogram. Note that
4238--       for the outer level subprogram, this is the starting index in the Subp
4239--       table for the entries for this subprogram.
4240
4241--    Suppress_Elaboration_Warnings (Flag148)
4242--       Defined in all entities, can be set only for subprogram entities and
4243--       for variables. If this flag is set then Sem_Elab will not generate
4244--       elaboration warnings for the subprogram or variable. Suppression of
4245--       such warnings is automatic for subprograms for which elaboration
4246--       checks are suppressed (without the need to set this flag), but the
4247--       flag is also set for various internal entities (such as init procs)
4248--       which are known not to generate any possible access before
4249--       elaboration, and it is set on variables when a warning is given to
4250--       avoid multiple elaboration warnings for the same variable.
4251
4252--    Suppress_Initialization (Flag105)
4253--       Defined in all variable, type and subtype entities. If set for a base
4254--       type, then the generation of initialization procedures is suppressed
4255--       for the type. Any other implicit initialiation (e.g. from the use of
4256--       pragma Initialize_Scalars) is also suppressed if this flag is set for
4257--       either the subtype in question, or for the base type. For variables,
4258--       this flag suppresses all implicit initialization for the object, even
4259--       if the type would normally require initialization. Set by use of
4260--       pragma Suppress_Initialization and also for internal entities where
4261--       we know that no initialization is required. For example, enumeration
4262--       image table entities set it.
4263
4264--    Suppress_Style_Checks (Flag165)
4265--       Defined in all entities. Suppresses any style checks specifically
4266--       associated with the given entity if set.
4267
4268--    Suppress_Value_Tracking_On_Call (Flag217)
4269--       Defined in all entities. Set in a scope entity if value tracking is to
4270--       be suppressed on any call within the scope. Used when an access to a
4271--       local subprogram is computed, to deal with the possibility that this
4272--       value may be passed around, and if used, may clobber a local variable.
4273
4274--    Task_Body_Procedure (Node25)
4275--       Defined in task types and subtypes. Points to the entity for the task
4276--       task body procedure (as further described in Exp_Ch9, task bodies are
4277--       expanded into procedures). A convenient function to retrieve this
4278--       field is Sem_Util.Get_Task_Body_Procedure.
4279--
4280--       The last sentence is odd??? Why not have Task_Body_Procedure go to the
4281--       Underlying_Type of the Root_Type???
4282
4283--    Thunk_Entity (Node31)
4284--       Defined in functions and procedures which have been classified as
4285--       Is_Thunk. Set to the target entity called by the thunk.
4286
4287--    Treat_As_Volatile (Flag41)
4288--       Defined in all type entities, and also in constants, components and
4289--       variables. Set if this entity is to be treated as volatile for code
4290--       generation purposes. Always set if Is_Volatile is set, but can also
4291--       be set as a result of situations (such as address overlays) where
4292--       the front end wishes to force volatile handling to inhibit aliasing
4293--       optimization which might be legally ok, but is undesirable. Note
4294--       that the backend always tests this flag rather than Is_Volatile.
4295--       The front end tests Is_Volatile if it is concerned with legality
4296--       checks associated with declared volatile variables, but if the test
4297--       is for the purposes of suppressing optimizations, then the front
4298--       end should test Treat_As_Volatile rather than Is_Volatile.
4299--
4300--       Note: before testing Treat_As_Volatile, consider whether it would
4301--       be more appropriate to use Exp_Util.Is_Volatile_Reference instead,
4302--       which catches more cases of volatile references.
4303
4304--    Type_High_Bound (synthesized)
4305--       Applies to scalar types. Returns the tree node (Node_Id) that contains
4306--       the high bound of a scalar type. The returned value is literal for a
4307--       base type, but may be an expression in the case of scalar type with
4308--       dynamic bounds. Note that in the case of a fixed point type, the high
4309--       bound is in units of small, and is an integer.
4310
4311--    Type_Low_Bound (synthesized)
4312--       Applies to scalar types. Returns the tree node (Node_Id) that contains
4313--       the low bound of a scalar type. The returned value is literal for a
4314--       base type, but may be an expression in the case of scalar type with
4315--       dynamic bounds. Note that in the case of a fixed point type, the low
4316--       bound is in units of small, and is an integer.
4317
4318--    Underlying_Full_View (Node19)
4319--       Defined in private subtypes that are the completion of other private
4320--       types, or in private types that are derived from private subtypes. If
4321--       the full view of a private type T is derived from another private type
4322--       with discriminants Td, the full view of T is also private, and there
4323--       is no way to attach to it a further full view that would convey the
4324--       structure of T to the backend. The Underlying_Full_View is an
4325--       attribute of the full view that is a subtype of Td with the same
4326--       constraint as the declaration for T. The declaration for this subtype
4327--       is built at the point of the declaration of T, either as completion,
4328--       or as a subtype declaration where the base type is private and has a
4329--       private completion. If Td is already constrained, then its full view
4330--       can serve directly as the full view of T.
4331
4332--    Underlying_Record_View (Node28)
4333--       Defined in record types. Set for record types that are extensions of
4334--       types with unknown discriminants, and also set for internally built
4335--       underlying record views to reference its original record type. Record
4336--       types that are extensions of types with unknown discriminants do not
4337--       have a completion, but they cannot be used without having some
4338--       discriminated view at hand. This view is a record type with the same
4339--       structure, whose parent type is the full view of the parent in the
4340--       original type extension.
4341
4342--    Underlying_Type (synthesized)
4343--       Applies to all entities. This is the identity function except in the
4344--       case where it is applied to an incomplete or private type, in which
4345--       case it is the underlying type of the type declared by the completion,
4346--       or Empty if the completion has not yet been encountered and analyzed.
4347--
4348--       Note: the reason this attribute applies to all entities, and not just
4349--       types, is to legitimize code where Underlying_Type is applied to an
4350--       entity which may or may not be a type, with the intent that if it is a
4351--       type, its underlying type is taken.
4352--
4353--       Note also that the value of this attribute is interesting only after
4354--       the full view of the parent type has been processed. If the parent
4355--       type is declared in an enclosing package, the attribute will be non-
4356--       trivial only after the full view of the type has been analyzed.
4357
4358--    Universal_Aliasing (Flag216) [implementation base type only]
4359--       Defined in all type entities. Set to direct the back-end to avoid
4360--       any optimizations based on type-based alias analysis for this type.
4361--       Indicates that objects of this type can alias objects of any other
4362--       types, which guarantees that any objects can be referenced through
4363--       access types designating this type safely, whatever the actual type
4364--       of these objects. In other words, the effect is as though access
4365--       types designating this type were subject to No_Strict_Aliasing.
4366
4367--    Unset_Reference (Node16)
4368--       Defined in variables and out parameters. This is normally Empty. It
4369--       is set to point to an identifier that represents a reference to the
4370--       entity before any value has been set. Only the first such reference
4371--       is identified. This field is used to generate a warning message if
4372--       necessary (see Sem_Warn.Check_Unset_Reference).
4373
4374--    Used_As_Generic_Actual (Flag222)
4375--       Defined in all entities, set if the entity is used as an argument to
4376--       a generic instantiation. Used to tune certain warning messages.
4377
4378--    Uses_Lock_Free (Flag188)
4379--       Defined in protected type entities. Set to True when the Lock Free
4380--       implementation is used for the protected type. This implemenatation is
4381--       based on atomic transactions and doesn't require anymore the use of
4382--       Protection object (see System.Tasking.Protected_Objects).
4383
4384--    Uses_Sec_Stack (Flag95)
4385--       Defined in scope entities (block, entry, function, loop, procedure,
4386--       task). Set to True when secondary stack is used in this scope and must
4387--       be released on exit unless Sec_Stack_Needed_For_Return is set.
4388
4389--    Warnings_Off (Flag96)
4390--       Defined in all entities. Set if a pragma Warnings (Off, entity-name)
4391--       is used to suppress warnings for a given entity. It is also used by
4392--       the compiler in some situations to kill spurious warnings. Note that
4393--       clients should generally not test this flag directly, but instead
4394--       use function Has_Warnings_Off.
4395
4396--    Warnings_Off_Used (Flag236)
4397--       Defined in all entities. Can only be set if Warnings_Off is set. If
4398--       set indicates that a warning was suppressed by the Warnings_Off flag,
4399--       and Unmodified/Unreferenced would not have suppressed the warning.
4400
4401--    Warnings_Off_Used_Unmodified (Flag237)
4402--       Defined in all entities. Can only be set if Warnings_Off is set and
4403--       Has_Pragma_Unmodified is not set. If set indicates that a warning was
4404--       suppressed by the Warnings_Off status but that pragma Unmodified
4405--       would also have suppressed the warning.
4406
4407--    Warnings_Off_Used_Unreferenced (Flag238)
4408--       Defined in all entities. Can only be set if Warnings_Off is set and
4409--       Has_Pragma_Unreferenced is not set. If set indicates that a warning
4410--       was suppressed by the Warnings_Off status but that pragma Unreferenced
4411--       would also have suppressed the warning.
4412
4413--    Was_Hidden (Flag196)
4414--       Defined in all entities. Used to save the value of the Is_Hidden
4415--       attribute when the limited-view is installed (Ada 2005: AI-217).
4416
4417--    Wrapped_Entity (Node27)
4418--       Defined in functions and procedures which have been classified as
4419--       Is_Primitive_Wrapper. Set to the entity being wrapper.
4420
4421---------------------------
4422-- Renaming and Aliasing --
4423---------------------------
4424
4425--  Several entity attributes relate to renaming constructs, and to the use of
4426--  different names to refer to the same entity. The following is a summary of
4427--  these constructs and their prefered uses.
4428
4429--  There are three related attributes:
4430
4431--    Renamed_Entity
4432--    Renamed_Object
4433--    Alias
4434
4435--  They all overlap because they are supposed to apply to different entity
4436--  kinds. They are semantically related, and have the following intended uses:
4437
4438--  a) Renamed_Entity appplies to entities in renaming declarations that rename
4439--  an entity, so the value of the attribute IS an entity. This applies to
4440--  generic renamings, package renamings, exception renamings, and subprograms
4441--  renamings that rename a subprogram (rather than an attribute, an entry, a
4442--  protected operation, etc).
4443
4444--  b) Alias applies to overloadable entities, and the value is an overloadable
4445--  entity. so this is a subset of the previous one. We use the term Alias to
4446--  cover both renamings and inherited operations, because both cases are
4447--  handled in the same way when expanding a call. namely the Alias of a given
4448--  subprogram is the subprogram that will actually be called.
4449
4450--  Both a) and b) are set transitively, so that in fact it is not necessary to
4451--  traverse chains of renamings when looking for the original entity: it's
4452--  there in one step (this is done when analyzing renaming declarations other
4453--  than object renamings in sem_ch8).
4454
4455--  c) Renamed_Object applies to constants and variables. Given that the name
4456--  in an object renaming declaration is not necessarily an entity name, the
4457--  value of the attribute is the tree for that name, eg AR (1).Comp. The case
4458--  when that name is in fact an entity is not handled specially. This is why
4459--  in a few cases we need to use a loop to trace a chain of object renamings
4460--  where all of them happen to be entities. So:
4461
4462--    X : integer;
4463--    Y : integer renames X;   -- renamed object is the identifier X
4464--    Z : integer renames Y;   -- renamed object is the identifier Y
4465
4466--  The front-end does not store explicitly the fact that Z renames X.
4467
4468--------------------------------------
4469-- Delayed Freezing and Elaboration --
4470--------------------------------------
4471
4472--  The flag Has_Delayed_Freeze indicates that an entity carries an explicit
4473--  freeze node, which appears later in the expanded tree.
4474
4475--  a)   The flag is used by the front-end to trigger expansion actions
4476--  which include the generation of that freeze node. Typically this happens at
4477--  the end of the current compilation unit, or before the first subprogram
4478--  body is encountered in the current unit. See files freeze and exp_ch13 for
4479--  details on the actions triggered by a freeze node, which include the
4480--  construction of initialization procedures and dispatch tables.
4481
4482--  b) The flag is used by the backend to defer elaboration of the entity until
4483--  its freeze node is seen.  In the absence of an explicit freeze node, an
4484--  entity is frozen (and elaborated) at the point of declaration.
4485
4486--  For object declarations, the flag is set when an address clause for the
4487--  object is encountered. Legality checks on the address expression only
4488--  take place at the freeze point of the object.
4489
4490--  Most types have an explicit freeze node, because they cannot be elaborated
4491--  until all representation and operational items that apply to them have been
4492--  analyzed. Private types and incomplete types have the flag set as well, as
4493--  do task and protected types.
4494
4495--  Implicit base types created for type derivations, as well as classwide
4496--  types created for all tagged types, have the flag set.
4497
4498--  If a subprogram has an access parameter whose designated type is incomplete
4499--  the subprogram has the flag set.
4500
4501------------------
4502-- Access Kinds --
4503------------------
4504
4505--  The following entity kinds are introduced by the corresponding type
4506--  definitions:
4507
4508--    E_Access_Type,
4509--    E_General_Access_Type,
4510--    E_Access_Subprogram_Type,
4511--    E_Anonymous_Access_Subprogram_Type,
4512--    E_Access_Protected_Subprogram_Type,
4513--    E_Anonymous_Access_Protected_Subprogram_Type
4514--    E_Anonymous_Access_Type.
4515
4516--  E_Access_Subtype is for an access subtype created by a subtype
4517--  declaration.
4518
4519--  In addition, we define the kind E_Allocator_Type to label allocators.
4520--  This is because special resolution rules apply to this construct.
4521--  Eventually the constructs are labeled with the access type imposed by
4522--  the context. The backend should never see types with this Ekind.
4523
4524--  Similarly, the type E_Access_Attribute_Type is used as the initial kind
4525--  associated with an access attribute. After resolution a specific access
4526--  type will be established as determined by the context.
4527
4528--  Finally, the type Any_Access is used to label -null- during type
4529--  resolution. Any_Access is also replaced by the context type after
4530--  resolution.
4531
4532--------------------------------
4533-- Classification of Entities --
4534--------------------------------
4535
4536--  The classification of program entities which follows is a refinement of
4537--  the list given in RM 3.1(1). E.g., separate entities denote subtypes of
4538--  different type classes. Ada 95 entities include class wide types,
4539--  protected types, subprogram types, generalized access types, generic
4540--  formal derived types and generic formal packages.
4541
4542--  The order chosen for these kinds allows us to classify related entities
4543--  so that they are contiguous. As a result, they do not appear in the
4544--  exact same order as their order of first appearance in the LRM (For
4545--  example, private types are listed before packages). The contiguity
4546--  allows us to define useful subtypes (see below) such as type entities,
4547--  overloaded entities, etc.
4548
4549--  Each entity (explicitly or implicitly declared) has a kind, which is
4550--  a value of the following type:
4551
4552   type Entity_Kind is (
4553
4554      E_Void,
4555      --  The initial Ekind value for a newly created entity. Also used as the
4556      --  Ekind for Standard_Void_Type, a type entity in Standard used as a
4557      --  dummy type for the return type of a procedure (the reason we create
4558      --  this type is to share the circuits for performing overload resolution
4559      --  on calls).
4560
4561      -------------
4562      -- Objects --
4563      -------------
4564
4565      E_Component,
4566      --  Components of a record declaration, private declarations of
4567      --  protected objects.
4568
4569      E_Constant,
4570      --  Constants created by an object declaration with a constant keyword
4571
4572      E_Discriminant,
4573      --  A discriminant, created by the use of a discriminant in a type
4574      --  declaration.
4575
4576      E_Loop_Parameter,
4577      --  A loop parameter created by a for loop
4578
4579      E_Variable,
4580      --  Variables created by an object declaration with no constant keyword
4581
4582      ------------------------
4583      -- Parameter Entities --
4584      ------------------------
4585
4586      --  Parameters are also objects
4587
4588      E_Out_Parameter,
4589      --  An out parameter of a subprogram or entry
4590
4591      E_In_Out_Parameter,
4592      --  An in-out parameter of a subprogram or entry
4593
4594      E_In_Parameter,
4595      --  An in parameter of a subprogram or entry
4596
4597      --------------------------------
4598      -- Generic Parameter Entities --
4599      --------------------------------
4600
4601      --  Generic parameters are also objects
4602
4603      E_Generic_In_Out_Parameter,
4604      --  A generic in out parameter, created by the use of a generic in out
4605      --  parameter in a generic declaration.
4606
4607      E_Generic_In_Parameter,
4608      --  A generic in parameter, created by the use of a generic in
4609      --  parameter in a generic declaration.
4610
4611      -------------------
4612      -- Named Numbers --
4613      -------------------
4614
4615      E_Named_Integer,
4616      --  Named numbers created by a number declaration with an integer value
4617
4618      E_Named_Real,
4619      --  Named numbers created by a number declaration with a real value
4620
4621      -----------------------
4622      -- Enumeration Types --
4623      -----------------------
4624
4625      E_Enumeration_Type,
4626      --  Enumeration types, created by an enumeration type declaration
4627
4628      E_Enumeration_Subtype,
4629      --  Enumeration subtypes, created by an explicit or implicit subtype
4630      --  declaration applied to an enumeration type or subtype.
4631
4632      -------------------
4633      -- Numeric Types --
4634      -------------------
4635
4636      E_Signed_Integer_Type,
4637      --  Signed integer type, used for the anonymous base type of the
4638      --  integer subtype created by an integer type declaration.
4639
4640      E_Signed_Integer_Subtype,
4641      --  Signed integer subtype, created by either an integer subtype or
4642      --  integer type declaration (in the latter case an integer type is
4643      --  created for the base type, and this is the first named subtype).
4644
4645      E_Modular_Integer_Type,
4646      --  Modular integer type, used for the anonymous base type of the
4647      --  integer subtype created by a modular integer type declaration.
4648
4649      E_Modular_Integer_Subtype,
4650      --  Modular integer subtype, created by either an modular subtype
4651      --  or modular type declaration (in the latter case a modular type
4652      --  is created for the base type, and this is the first named subtype).
4653
4654      E_Ordinary_Fixed_Point_Type,
4655      --  Ordinary fixed type, used for the anonymous base type of the fixed
4656      --  subtype created by an ordinary fixed point type declaration.
4657
4658      E_Ordinary_Fixed_Point_Subtype,
4659      --  Ordinary fixed point subtype, created by either an ordinary fixed
4660      --  point subtype or ordinary fixed point type declaration (in the
4661      --  latter case a fixed point type is created for the base type, and
4662      --  this is the first named subtype).
4663
4664      E_Decimal_Fixed_Point_Type,
4665      --  Decimal fixed type, used for the anonymous base type of the decimal
4666      --  fixed subtype created by an ordinary fixed point type declaration.
4667
4668      E_Decimal_Fixed_Point_Subtype,
4669      --  Decimal fixed point subtype, created by either a decimal fixed point
4670      --  subtype or decimal fixed point type declaration (in the latter case
4671      --  a fixed point type is created for the base type, and this is the
4672      --  first named subtype).
4673
4674      E_Floating_Point_Type,
4675      --  Floating point type, used for the anonymous base type of the
4676      --  floating point subtype created by a floating point type declaration.
4677
4678      E_Floating_Point_Subtype,
4679
4680      --  Floating point subtype, created by either a floating point subtype
4681      --  or floating point type declaration (in the latter case a floating
4682      --  point type is created for the base type, and this is the first
4683      --  named subtype).
4684
4685      ------------------
4686      -- Access Types --
4687      ------------------
4688
4689      E_Access_Type,
4690      --  An access type created by an access type declaration with no all
4691      --  keyword present. Note that the predefined type Any_Access, which
4692      --  has E_Access_Type Ekind, is used to label NULL in the upwards pass
4693      --  of type analysis, to be replaced by the true access type in the
4694      --  downwards resolution pass.
4695
4696      E_Access_Subtype,
4697      --  An access subtype created by a subtype declaration for any access
4698      --  type (whether or not it is a general access type).
4699
4700      E_Access_Attribute_Type,
4701      --  An access type created for an access attribute (one of 'Access,
4702      --  'Unrestricted_Access, or Unchecked_Access).
4703
4704      E_Allocator_Type,
4705      --  A special internal type used to label allocators and references to
4706      --  objects using 'Reference. This is needed because special resolution
4707      --  rules apply to these constructs. On the resolution pass, this type
4708      --  is almost always replaced by the actual access type, but if the
4709      --  context does not provide one, the backend will see Allocator_Type
4710      --  itself (which will already have been frozen).
4711
4712      E_General_Access_Type,
4713      --  An access type created by an access type declaration with the all
4714      --  keyword present.
4715
4716      E_Access_Subprogram_Type,
4717      --  An access to subprogram type, created by an access to subprogram
4718      --  declaration.
4719
4720      E_Anonymous_Access_Subprogram_Type,
4721      --  An anonymous access to subprogram type, created by an access to
4722      --  subprogram declaration, or generated for a current instance of
4723      --  a type name appearing within a component definition that has an
4724      --  anonymous access to subprogram type.
4725
4726      E_Access_Protected_Subprogram_Type,
4727      --  An access to a protected subprogram, created by the corresponding
4728      --  declaration. Values of such a type denote both a protected object
4729      --  and a protected operation within, and have different compile-time
4730      --  and run-time properties than other access to subprograms.
4731
4732      E_Anonymous_Access_Protected_Subprogram_Type,
4733      --  An anonymous access to protected subprogram type, created by an
4734      --  access to subprogram declaration.
4735
4736      E_Anonymous_Access_Type,
4737      --  An anonymous access type created by an access parameter or access
4738      --  discriminant.
4739
4740      ---------------------
4741      -- Composite Types --
4742      ---------------------
4743
4744      E_Array_Type,
4745      --  An array type created by an array type declaration. Includes all
4746      --  cases of arrays, except for string types.
4747
4748      E_Array_Subtype,
4749      --  An array subtype, created by an explicit array subtype declaration,
4750      --  or the use of an anonymous array subtype.
4751
4752      E_String_Literal_Subtype,
4753      --  A special string subtype, used only to describe the type of a string
4754      --  literal (will always be one dimensional, with literal bounds).
4755
4756      E_Class_Wide_Type,
4757      --  A class wide type, created by any tagged type declaration (i.e. if
4758      --  a tagged type is declared, the corresponding class type is always
4759      --  created, using this Ekind value).
4760
4761      E_Class_Wide_Subtype,
4762      --  A subtype of a class wide type, created by a subtype declaration
4763      --  used to declare a subtype of a class type.
4764
4765      E_Record_Type,
4766      --  A record type, created by a record type declaration
4767
4768      E_Record_Subtype,
4769      --  A record subtype, created by a record subtype declaration
4770
4771      E_Record_Type_With_Private,
4772      --  Used for types defined by a private extension declaration,
4773      --  and for tagged private types. Includes the fields for both
4774      --  private types and for record types (with the sole exception of
4775      --  Corresponding_Concurrent_Type which is obviously not needed). This
4776      --  entity is considered to be both a record type and a private type.
4777
4778      E_Record_Subtype_With_Private,
4779      --  A subtype of a type defined by a private extension declaration
4780
4781      E_Private_Type,
4782      --  A private type, created by a private type declaration that has
4783      --  neither the keyword limited nor the keyword tagged.
4784
4785      E_Private_Subtype,
4786      --  A subtype of a private type, created by a subtype declaration used
4787      --  to declare a subtype of a private type.
4788
4789      E_Limited_Private_Type,
4790      --  A limited private type, created by a private type declaration that
4791      --  has the keyword limited, but not the keyword tagged.
4792
4793      E_Limited_Private_Subtype,
4794      --  A subtype of a limited private type, created by a subtype declaration
4795      --  used to declare a subtype of a limited private type.
4796
4797      E_Incomplete_Type,
4798      --  An incomplete type, created by an incomplete type declaration
4799
4800      E_Incomplete_Subtype,
4801      --  An incomplete subtype, created by a subtype declaration where the
4802      --  subtype mark denotes an incomplete type.
4803
4804      E_Task_Type,
4805      --  A task type, created by a task type declaration. An entity with this
4806      --  Ekind is also created to describe the anonymous type of a task that
4807      --  is created by a single task declaration.
4808
4809      E_Task_Subtype,
4810      --  A subtype of a task type, created by a subtype declaration used to
4811      --  declare a subtype of a task type.
4812
4813      E_Protected_Type,
4814      --  A protected type, created by a protected type declaration. An entity
4815      --  with this Ekind is also created to describe the anonymous type of
4816      --  a protected object created by a single protected declaration.
4817
4818      E_Protected_Subtype,
4819      --  A subtype of a protected type, created by a subtype declaration used
4820      --  to declare a subtype of a protected type.
4821
4822      -----------------
4823      -- Other Types --
4824      -----------------
4825
4826      E_Exception_Type,
4827      --  The type of an exception created by an exception declaration
4828
4829      E_Subprogram_Type,
4830      --  This is the designated type of an Access_To_Subprogram. Has type and
4831      --  signature like a subprogram entity, so can appear in calls, which
4832      --  are resolved like regular calls, except that such an entity is not
4833      --  overloadable.
4834
4835      ---------------------------
4836      -- Overloadable Entities --
4837      ---------------------------
4838
4839      E_Enumeration_Literal,
4840      --  An enumeration literal, created by the use of the literal in an
4841      --  enumeration type definition.
4842
4843      E_Function,
4844      --  A function, created by a function declaration or a function body
4845      --  that acts as its own declaration.
4846
4847      E_Operator,
4848      --  A predefined operator, appearing in Standard, or an implicitly
4849      --  defined concatenation operator created whenever an array is declared.
4850      --  We do not make normal derived operators explicit in the tree, but the
4851      --  concatenation operators are made explicit.
4852
4853      E_Procedure,
4854      --  A procedure, created by a procedure declaration or a procedure
4855      --  body that acts as its own declaration.
4856
4857      E_Abstract_State,
4858      --  A state abstraction. Used to designate entities introduced by aspect
4859      --  or pragma Abstract_State. The entity carries the various properties
4860      --  of the state.
4861
4862      E_Entry,
4863      --  An entry, created by an entry declaration in a task or protected
4864      --  object.
4865
4866      --------------------
4867      -- Other Entities --
4868      --------------------
4869
4870      E_Entry_Family,
4871      --  An entry family, created by an entry family declaration in a
4872      --  task or protected type definition.
4873
4874      E_Block,
4875      --  A block identifier, created by an explicit or implicit label on
4876      --  a block or declare statement.
4877
4878      E_Entry_Index_Parameter,
4879      --  An entry index parameter created by an entry index specification
4880      --  for the body of a protected entry family.
4881
4882      E_Exception,
4883      --  An exception created by an exception declaration. The exception
4884      --  itself uses E_Exception for the Ekind, the implicit type that is
4885      --  created to represent its type uses the Ekind E_Exception_Type.
4886
4887      E_Generic_Function,
4888      --  A generic function. This is the entity for a generic function
4889      --  created by a generic subprogram declaration.
4890
4891      E_Generic_Procedure,
4892      --  A generic function. This is the entity for a generic procedure
4893      --  created by a generic subprogram declaration.
4894
4895      E_Generic_Package,
4896      --  A generic package, this is the entity for a generic package created
4897      --  by a generic package declaration.
4898
4899      E_Label,
4900      --  The defining entity for a label. Note that this is created by the
4901      --  implicit label declaration, not the occurrence of the label itself,
4902      --  which is simply a direct name referring to the label.
4903
4904      E_Loop,
4905      --  A loop identifier, created by an explicit or implicit label on a
4906      --  loop statement.
4907
4908      E_Return_Statement,
4909      --  A dummy entity created for each return statement. Used to hold
4910      --  information about the return statement (what it applies to) and in
4911      --  rules checking. For example, a simple_return_statement that applies
4912      --  to an extended_return_statement cannot have an expression; this
4913      --  requires putting the E_Return_Statement entity for the
4914      --  extended_return_statement on the scope stack.
4915
4916      E_Package,
4917      --  A package, created by a package declaration
4918
4919      E_Package_Body,
4920      --  A package body. This entity serves only limited functions, since
4921      --  most semantic analysis uses the package entity (E_Package). However
4922      --  there are some attributes that are significant for the body entity.
4923      --  For example, collection of exception handlers.
4924
4925      E_Protected_Object,
4926      --  A protected object, created by an object declaration that declares
4927      --  an object of a protected type.
4928
4929      E_Protected_Body,
4930      --  A protected body. This entity serves almost no function, since all
4931      --  semantic analysis uses the protected entity (E_Protected_Type).
4932
4933      E_Task_Body,
4934      --  A task body. This entity serves almost no function, since all
4935      --  semantic analysis uses the protected entity (E_Task_Type).
4936
4937      E_Subprogram_Body
4938      --  A subprogram body. Used when a subprogram has a separate declaration
4939      --  to represent the entity for the body. This entity serves almost no
4940      --  function, since all semantic analysis uses the subprogram entity
4941      --  for the declaration (E_Function or E_Procedure).
4942   );
4943
4944   for Entity_Kind'Size use 8;
4945   --  The data structures in Atree assume this
4946
4947   --------------------------
4948   -- Subtype Declarations --
4949   --------------------------
4950
4951   --  The above entities are arranged so that they can be conveniently grouped
4952   --  into subtype ranges. Note that for each of the xxx_Kind ranges defined
4953   --  below, there is a corresponding Is_xxx (or for types, Is_xxx_Type)
4954   --  predicate which is to be used in preference to direct range tests using
4955   --  the subtype name. However, the subtype names are available for direct
4956   --  use, e.g. as choices in case statements.
4957
4958   subtype Access_Kind                 is Entity_Kind range
4959       E_Access_Type ..
4960   --  E_Access_Subtype
4961   --  E_Access_Attribute_Type
4962   --  E_Allocator_Type
4963   --  E_General_Access_Type
4964   --  E_Access_Subprogram_Type
4965   --  E_Anonymous_Access_Subprogram_Type
4966   --  E_Access_Protected_Subprogram_Type
4967   --  E_Anonymous_Access_Protected_Subprogram_Type
4968       E_Anonymous_Access_Type;
4969
4970   subtype Access_Subprogram_Kind      is Entity_Kind range
4971       E_Access_Subprogram_Type ..
4972   --  E_Anonymous_Access_Subprogram_Type
4973   --  E_Access_Protected_Subprogram_Type
4974       E_Anonymous_Access_Protected_Subprogram_Type;
4975
4976   subtype Access_Protected_Kind       is Entity_Kind range
4977      E_Access_Protected_Subprogram_Type ..
4978      E_Anonymous_Access_Protected_Subprogram_Type;
4979
4980   subtype Aggregate_Kind              is Entity_Kind range
4981       E_Array_Type ..
4982   --  E_Array_Subtype
4983   --  E_String_Literal_Subtype
4984   --  E_Class_Wide_Type
4985   --  E_Class_Wide_Subtype
4986   --  E_Record_Type
4987       E_Record_Subtype;
4988
4989   subtype Array_Kind                  is Entity_Kind range
4990       E_Array_Type ..
4991   --  E_Array_Subtype
4992       E_String_Literal_Subtype;
4993
4994   subtype Assignable_Kind             is Entity_Kind range
4995       E_Variable ..
4996   --  E_Out_Parameter
4997       E_In_Out_Parameter;
4998
4999   subtype Class_Wide_Kind             is Entity_Kind range
5000       E_Class_Wide_Type ..
5001       E_Class_Wide_Subtype;
5002
5003   subtype Composite_Kind              is Entity_Kind range
5004       E_Array_Type ..
5005   --  E_Array_Subtype
5006   --  E_String_Literal_Subtype
5007   --  E_Class_Wide_Type
5008   --  E_Class_Wide_Subtype
5009   --  E_Record_Type
5010   --  E_Record_Subtype
5011   --  E_Record_Type_With_Private
5012   --  E_Record_Subtype_With_Private
5013   --  E_Private_Type
5014   --  E_Private_Subtype
5015   --  E_Limited_Private_Type
5016   --  E_Limited_Private_Subtype
5017   --  E_Incomplete_Type
5018   --  E_Incomplete_Subtype
5019   --  E_Task_Type
5020   --  E_Task_Subtype,
5021   --  E_Protected_Type,
5022       E_Protected_Subtype;
5023
5024   subtype Concurrent_Kind             is Entity_Kind range
5025       E_Task_Type ..
5026   --  E_Task_Subtype,
5027   --  E_Protected_Type,
5028       E_Protected_Subtype;
5029
5030   subtype Concurrent_Body_Kind        is Entity_Kind range
5031       E_Protected_Body ..
5032       E_Task_Body;
5033
5034   subtype Decimal_Fixed_Point_Kind    is Entity_Kind range
5035       E_Decimal_Fixed_Point_Type ..
5036       E_Decimal_Fixed_Point_Subtype;
5037
5038   subtype Digits_Kind                 is Entity_Kind range
5039       E_Decimal_Fixed_Point_Type ..
5040   --  E_Decimal_Fixed_Point_Subtype
5041   --  E_Floating_Point_Type
5042       E_Floating_Point_Subtype;
5043
5044   subtype Discrete_Kind               is Entity_Kind range
5045       E_Enumeration_Type ..
5046   --  E_Enumeration_Subtype
5047   --  E_Signed_Integer_Type
5048   --  E_Signed_Integer_Subtype
5049   --  E_Modular_Integer_Type
5050       E_Modular_Integer_Subtype;
5051
5052   subtype Discrete_Or_Fixed_Point_Kind is Entity_Kind range
5053       E_Enumeration_Type ..
5054   --  E_Enumeration_Subtype
5055   --  E_Signed_Integer_Type
5056   --  E_Signed_Integer_Subtype
5057   --  E_Modular_Integer_Type
5058   --  E_Modular_Integer_Subtype
5059   --  E_Ordinary_Fixed_Point_Type
5060   --  E_Ordinary_Fixed_Point_Subtype
5061   --  E_Decimal_Fixed_Point_Type
5062       E_Decimal_Fixed_Point_Subtype;
5063
5064   subtype Elementary_Kind             is Entity_Kind range
5065       E_Enumeration_Type ..
5066   --  E_Enumeration_Subtype
5067   --  E_Signed_Integer_Type
5068   --  E_Signed_Integer_Subtype
5069   --  E_Modular_Integer_Type
5070   --  E_Modular_Integer_Subtype
5071   --  E_Ordinary_Fixed_Point_Type
5072   --  E_Ordinary_Fixed_Point_Subtype
5073   --  E_Decimal_Fixed_Point_Type
5074   --  E_Decimal_Fixed_Point_Subtype
5075   --  E_Floating_Point_Type
5076   --  E_Floating_Point_Subtype
5077   --  E_Access_Type
5078   --  E_Access_Subtype
5079   --  E_Access_Attribute_Type
5080   --  E_Allocator_Type
5081   --  E_General_Access_Type
5082   --  E_Access_Subprogram_Type
5083   --  E_Access_Protected_Subprogram_Type
5084   --  E_Anonymous_Access_Subprogram_Type
5085   --  E_Anonymous_Access_Protected_Subprogram_Type
5086       E_Anonymous_Access_Type;
5087
5088   subtype Enumeration_Kind            is Entity_Kind range
5089       E_Enumeration_Type ..
5090       E_Enumeration_Subtype;
5091
5092   subtype Entry_Kind                  is Entity_Kind range
5093       E_Entry ..
5094       E_Entry_Family;
5095
5096   subtype Fixed_Point_Kind            is Entity_Kind range
5097       E_Ordinary_Fixed_Point_Type ..
5098   --  E_Ordinary_Fixed_Point_Subtype
5099   --  E_Decimal_Fixed_Point_Type
5100       E_Decimal_Fixed_Point_Subtype;
5101
5102   subtype Float_Kind                  is Entity_Kind range
5103       E_Floating_Point_Type ..
5104       E_Floating_Point_Subtype;
5105
5106   subtype Formal_Kind                 is Entity_Kind range
5107       E_Out_Parameter ..
5108   --  E_In_Out_Parameter
5109       E_In_Parameter;
5110
5111   subtype Formal_Object_Kind          is Entity_Kind range
5112       E_Generic_In_Out_Parameter ..
5113       E_Generic_In_Parameter;
5114
5115   subtype Generic_Subprogram_Kind     is Entity_Kind range
5116       E_Generic_Function ..
5117       E_Generic_Procedure;
5118
5119   subtype Generic_Unit_Kind           is Entity_Kind range
5120       E_Generic_Function ..
5121   --  E_Generic_Procedure
5122       E_Generic_Package;
5123
5124   subtype Incomplete_Kind             is Entity_Kind range
5125       E_Incomplete_Type ..
5126       E_Incomplete_Subtype;
5127
5128   subtype Incomplete_Or_Private_Kind  is Entity_Kind range
5129       E_Record_Type_With_Private ..
5130   --  E_Record_Subtype_With_Private
5131   --  E_Private_Type
5132   --  E_Private_Subtype
5133   --  E_Limited_Private_Type
5134   --  E_Limited_Private_Subtype
5135   --  E_Incomplete_Type
5136       E_Incomplete_Subtype;
5137
5138   subtype Integer_Kind                is Entity_Kind range
5139       E_Signed_Integer_Type ..
5140   --  E_Signed_Integer_Subtype
5141   --  E_Modular_Integer_Type
5142       E_Modular_Integer_Subtype;
5143
5144   subtype Modular_Integer_Kind        is Entity_Kind range
5145       E_Modular_Integer_Type ..
5146       E_Modular_Integer_Subtype;
5147
5148   subtype Named_Kind                  is Entity_Kind range
5149       E_Named_Integer ..
5150       E_Named_Real;
5151
5152   subtype Numeric_Kind                is Entity_Kind range
5153       E_Signed_Integer_Type ..
5154   --  E_Signed_Integer_Subtype
5155   --  E_Modular_Integer_Type
5156   --  E_Modular_Integer_Subtype
5157   --  E_Ordinary_Fixed_Point_Type
5158   --  E_Ordinary_Fixed_Point_Subtype
5159   --  E_Decimal_Fixed_Point_Type
5160   --  E_Decimal_Fixed_Point_Subtype
5161   --  E_Floating_Point_Type
5162       E_Floating_Point_Subtype;
5163
5164   subtype Object_Kind                 is Entity_Kind range
5165       E_Component ..
5166   --  E_Constant
5167   --  E_Discriminant
5168   --  E_Loop_Parameter
5169   --  E_Variable
5170   --  E_Out_Parameter
5171   --  E_In_Out_Parameter
5172   --  E_In_Parameter
5173   --  E_Generic_In_Out_Parameter
5174       E_Generic_In_Parameter;
5175
5176   subtype Ordinary_Fixed_Point_Kind   is Entity_Kind range
5177       E_Ordinary_Fixed_Point_Type ..
5178       E_Ordinary_Fixed_Point_Subtype;
5179
5180   subtype Overloadable_Kind           is Entity_Kind range
5181       E_Enumeration_Literal ..
5182   --  E_Function
5183   --  E_Operator
5184   --  E_Procedure
5185   --  E_Abstract_State
5186       E_Entry;
5187
5188   subtype Private_Kind                is Entity_Kind range
5189       E_Record_Type_With_Private ..
5190   --  E_Record_Subtype_With_Private
5191   --  E_Private_Type
5192   --  E_Private_Subtype
5193   --  E_Limited_Private_Type
5194       E_Limited_Private_Subtype;
5195
5196   subtype Protected_Kind              is Entity_Kind range
5197       E_Protected_Type ..
5198       E_Protected_Subtype;
5199
5200   subtype Real_Kind                   is Entity_Kind range
5201       E_Ordinary_Fixed_Point_Type ..
5202   --  E_Ordinary_Fixed_Point_Subtype
5203   --  E_Decimal_Fixed_Point_Type
5204   --  E_Decimal_Fixed_Point_Subtype
5205   --  E_Floating_Point_Type
5206       E_Floating_Point_Subtype;
5207
5208   subtype Record_Kind                 is Entity_Kind range
5209       E_Class_Wide_Type ..
5210   --  E_Class_Wide_Subtype
5211   --  E_Record_Type
5212   --  E_Record_Subtype
5213   --  E_Record_Type_With_Private
5214       E_Record_Subtype_With_Private;
5215
5216   subtype Scalar_Kind                 is Entity_Kind range
5217       E_Enumeration_Type ..
5218   --  E_Enumeration_Subtype
5219   --  E_Signed_Integer_Type
5220   --  E_Signed_Integer_Subtype
5221   --  E_Modular_Integer_Type
5222   --  E_Modular_Integer_Subtype
5223   --  E_Ordinary_Fixed_Point_Type
5224   --  E_Ordinary_Fixed_Point_Subtype
5225   --  E_Decimal_Fixed_Point_Type
5226   --  E_Decimal_Fixed_Point_Subtype
5227   --  E_Floating_Point_Type
5228       E_Floating_Point_Subtype;
5229
5230   subtype Subprogram_Kind             is Entity_Kind range
5231       E_Function ..
5232   --  E_Operator
5233       E_Procedure;
5234
5235   subtype Signed_Integer_Kind         is Entity_Kind range
5236       E_Signed_Integer_Type ..
5237       E_Signed_Integer_Subtype;
5238
5239   subtype Task_Kind                   is Entity_Kind range
5240       E_Task_Type ..
5241       E_Task_Subtype;
5242
5243   subtype Type_Kind                   is Entity_Kind range
5244       E_Enumeration_Type ..
5245   --  E_Enumeration_Subtype
5246   --  E_Signed_Integer_Type
5247   --  E_Signed_Integer_Subtype
5248   --  E_Modular_Integer_Type
5249   --  E_Modular_Integer_Subtype
5250   --  E_Ordinary_Fixed_Point_Type
5251   --  E_Ordinary_Fixed_Point_Subtype
5252   --  E_Decimal_Fixed_Point_Type
5253   --  E_Decimal_Fixed_Point_Subtype
5254   --  E_Floating_Point_Type
5255   --  E_Floating_Point_Subtype
5256   --  E_Access_Type
5257   --  E_Access_Subtype
5258   --  E_Access_Attribute_Type
5259   --  E_Allocator_Type,
5260   --  E_General_Access_Type
5261   --  E_Access_Subprogram_Type,
5262   --  E_Access_Protected_Subprogram_Type
5263   --  E_Anonymous_Access_Subprogram_Type
5264   --  E_Anonymous_Access_Protected_Subprogram_Type
5265   --  E_Anonymous_Access_Type
5266   --  E_Array_Type
5267   --  E_Array_Subtype
5268   --  E_String_Literal_Subtype
5269   --  E_Class_Wide_Subtype
5270   --  E_Class_Wide_Type
5271   --  E_Record_Type
5272   --  E_Record_Subtype
5273   --  E_Record_Type_With_Private
5274   --  E_Record_Subtype_With_Private
5275   --  E_Private_Type
5276   --  E_Private_Subtype
5277   --  E_Limited_Private_Type
5278   --  E_Limited_Private_Subtype
5279   --  E_Incomplete_Type
5280   --  E_Incomplete_Subtype
5281   --  E_Task_Type
5282   --  E_Task_Subtype
5283   --  E_Protected_Type
5284   --  E_Protected_Subtype
5285   --  E_Exception_Type
5286       E_Subprogram_Type;
5287
5288   --------------------------------------------------------
5289   -- Description of Defined Attributes for Entity_Kinds --
5290   --------------------------------------------------------
5291
5292   --  For each enumeration value defined in Entity_Kind we list all the
5293   --  attributes defined in Einfo which can legally be applied to an entity
5294   --  of that kind. The implementation of the attribute functions (and for
5295   --  non-synthesized attributes, of the corresponding set procedures) are
5296   --  in the Einfo body.
5297
5298   --  The following attributes are defined in all entities
5299
5300   --    Ekind                               (Ekind)
5301
5302   --    Chars                               (Name1)
5303   --    Next_Entity                         (Node2)
5304   --    Scope                               (Node3)
5305   --    Homonym                             (Node4)
5306   --    Etype                               (Node5)
5307   --    First_Rep_Item                      (Node6)
5308   --    Freeze_Node                         (Node7)
5309   --    Associated_Entity                   (Node37)
5310
5311   --    Address_Taken                       (Flag104)
5312   --    Can_Never_Be_Null                   (Flag38)
5313   --    Checks_May_Be_Suppressed            (Flag31)
5314   --    Debug_Info_Off                      (Flag166)
5315   --    Has_Convention_Pragma               (Flag119)
5316   --    Has_Delayed_Aspects                 (Flag200)
5317   --    Has_Delayed_Freeze                  (Flag18)
5318   --    Has_Fully_Qualified_Name            (Flag173)
5319   --    Has_Gigi_Rep_Item                   (Flag82)
5320   --    Has_Homonym                         (Flag56)
5321   --    Has_Pragma_Elaborate_Body           (Flag150)
5322   --    Has_Pragma_Inline                   (Flag157)
5323   --    Has_Pragma_Inline_Always            (Flag230)
5324   --    Has_Pragma_No_Inline                (Flag201)
5325   --    Has_Pragma_Pure                     (Flag203)
5326   --    Has_Pragma_Pure_Function            (Flag179)
5327   --    Has_Pragma_Thread_Local_Storage     (Flag169)
5328   --    Has_Pragma_Unmodified               (Flag233)
5329   --    Has_Pragma_Unreferenced             (Flag180)
5330   --    Has_Private_Declaration             (Flag155)
5331   --    Has_Qualified_Name                  (Flag161)
5332   --    Has_Stream_Size_Clause              (Flag184)
5333   --    Has_Unknown_Discriminants           (Flag72)
5334   --    Has_Xref_Entry                      (Flag182)
5335   --    In_Private_Part                     (Flag45)
5336   --    Is_Ada_2005_Only                    (Flag185)
5337   --    Is_Ada_2012_Only                    (Flag199)
5338   --    Is_Bit_Packed_Array                 (Flag122)  (base type only)
5339   --    Is_Aliased                          (Flag15)
5340   --    Is_Character_Type                   (Flag63)
5341   --    Is_Checked_Ghost_Entity             (Flag277)
5342   --    Is_Child_Unit                       (Flag73)
5343   --    Is_Compilation_Unit                 (Flag149)
5344   --    Is_Descendent_Of_Address            (Flag223)
5345   --    Is_Discrim_SO_Function              (Flag176)
5346   --    Is_Discriminant_Check_Function      (Flag264)
5347   --    Is_Dispatch_Table_Entity            (Flag234)
5348   --    Is_Dispatching_Operation            (Flag6)
5349   --    Is_Entry_Formal                     (Flag52)
5350   --    Is_Exported                         (Flag99)
5351   --    Is_First_Subtype                    (Flag70)
5352   --    Is_Formal_Subprogram                (Flag111)
5353   --    Is_Generic_Instance                 (Flag130)
5354   --    Is_Generic_Type                     (Flag13)
5355   --    Is_Hidden                           (Flag57)
5356   --    Is_Hidden_Open_Scope                (Flag171)
5357   --    Is_Ignored_Ghost_Entity             (Flag278)
5358   --    Is_Immediately_Visible              (Flag7)
5359   --    Is_Implementation_Defined           (Flag254)
5360   --    Is_Imported                         (Flag24)
5361   --    Is_Inlined                          (Flag11)
5362   --    Is_Internal                         (Flag17)
5363   --    Is_Itype                            (Flag91)
5364   --    Is_Known_Non_Null                   (Flag37)
5365   --    Is_Known_Null                       (Flag204)
5366   --    Is_Known_Valid                      (Flag170)
5367   --    Is_Limited_Composite                (Flag106)
5368   --    Is_Limited_Record                   (Flag25)
5369   --    Is_Obsolescent                      (Flag153)
5370   --    Is_Package_Body_Entity              (Flag160)
5371   --    Is_Packed_Array_Impl_Type           (Flag138)
5372   --    Is_Potentially_Use_Visible          (Flag9)
5373   --    Is_Preelaborated                    (Flag59)
5374   --    Is_Primitive_Wrapper                (Flag195)
5375   --    Is_Public                           (Flag10)
5376   --    Is_Pure                             (Flag44)
5377   --    Is_Remote_Call_Interface            (Flag62)
5378   --    Is_Remote_Types                     (Flag61)
5379   --    Is_Renaming_Of_Object               (Flag112)
5380   --    Is_Shared_Passive                   (Flag60)
5381   --    Is_Statically_Allocated             (Flag28)
5382   --    Is_Static_Type                      (Flag281)
5383   --    Is_Tagged_Type                      (Flag55)
5384   --    Is_Thunk                            (Flag225)
5385   --    Is_Trivial_Subprogram               (Flag235)
5386   --    Is_Unchecked_Union                  (Flag117)
5387   --    Is_Unimplemented                    (Flag284)
5388   --    Is_Visible_Formal                   (Flag206)
5389   --    Kill_Elaboration_Checks             (Flag32)
5390   --    Kill_Range_Checks                   (Flag33)
5391   --    Low_Bound_Tested                    (Flag205)
5392   --    Materialize_Entity                  (Flag168)
5393   --    Needs_Debug_Info                    (Flag147)
5394   --    Never_Set_In_Source                 (Flag115)
5395   --    No_Return                           (Flag113)
5396   --    Overlays_Constant                   (Flag243)
5397   --    Referenced                          (Flag156)
5398   --    Referenced_As_LHS                   (Flag36)
5399   --    Referenced_As_Out_Parameter         (Flag227)
5400   --    Suppress_Elaboration_Warnings       (Flag148)
5401   --    Suppress_Style_Checks               (Flag165)
5402   --    Suppress_Value_Tracking_On_Call     (Flag217)
5403   --    Used_As_Generic_Actual              (Flag222)
5404   --    Warnings_Off                        (Flag96)
5405   --    Warnings_Off_Used                   (Flag236)
5406   --    Warnings_Off_Used_Unmodified        (Flag237)
5407   --    Warnings_Off_Used_Unreferenced      (Flag238)
5408   --    Was_Hidden                          (Flag196)
5409
5410   --    Declaration_Node                    (synth)
5411   --    Has_Foreign_Convention              (synth)
5412   --    Is_Dynamic_Scope                    (synth)
5413   --    Is_Ghost_Entity                     (synth)
5414   --    Is_Standard_Character_Type          (synth)
5415   --    Is_Standard_String_Type             (synth)
5416   --    Underlying_Type                     (synth)
5417   --    all classification attributes       (synth)
5418
5419   --  The following list of access functions applies to all entities for
5420   --  types and subtypes. References to this list appear subsequently as
5421   --  as "(plus type attributes)" for each appropriate Entity_Kind.
5422
5423   --    Associated_Node_For_Itype           (Node8)
5424   --    Class_Wide_Type                     (Node9)
5425   --    Full_View                           (Node11)
5426   --    Esize                               (Uint12)
5427   --    RM_Size                             (Uint13)
5428   --    Alignment                           (Uint14)
5429   --    Pending_Access_Types                (Elist15)
5430   --    Related_Expression                  (Node24)
5431   --    Current_Use_Clause                  (Node27)
5432   --    Subprograms_For_Type                (Node29)
5433   --    Derived_Type_Link                   (Node31)
5434   --    No_Tagged_Streams_Pragma            (Node32)
5435   --    Linker_Section_Pragma               (Node33)
5436
5437   --    Depends_On_Private                  (Flag14)
5438   --    Disable_Controlled                  (Flag253)
5439   --    Discard_Names                       (Flag88)
5440   --    Finalize_Storage_Only               (Flag158)  (base type only)
5441   --    From_Limited_With                   (Flag159)
5442   --    Has_Aliased_Components              (Flag135)  (base type only)
5443   --    Has_Alignment_Clause                (Flag46)
5444   --    Has_Atomic_Components               (Flag86)   (base type only)
5445   --    Has_Completion_In_Body              (Flag71)
5446   --    Has_Complex_Representation          (Flag140)  (base type only)
5447   --    Has_Constrained_Partial_View        (Flag187)
5448   --    Has_Controlled_Component            (Flag43)   (base type only)
5449   --    Has_Default_Aspect                  (Flag39)   (base type only)
5450   --    Has_Default_Init_Cond               (Flag3)    (base type only)
5451   --    Has_Delayed_Rep_Aspects             (Flag261)
5452   --    Has_Discriminants                   (Flag5)
5453   --    Has_Dynamic_Predicate_Aspect        (Flag258)
5454   --    Has_Independent_Components          (Flag34)   (base type only)
5455   --    Has_Inheritable_Invariants          (Flag248)
5456   --    Has_Inherited_Default_Init_Cond     (Flag133)  (base type only)
5457   --    Has_Invariants                      (Flag232)
5458   --    Has_Non_Standard_Rep                (Flag75)   (base type only)
5459   --    Has_Object_Size_Clause              (Flag172)
5460   --    Has_Pragma_Preelab_Init             (Flag221)
5461   --    Has_Pragma_Unreferenced_Objects     (Flag212)
5462   --    Has_Predicates                      (Flag250)
5463   --    Has_Primitive_Operations            (Flag120)  (base type only)
5464   --    Has_Protected                       (Flag271)  (base type only)
5465   --    Has_Size_Clause                     (Flag29)
5466   --    Has_Specified_Layout                (Flag100)  (base type only)
5467   --    Has_Specified_Stream_Input          (Flag190)
5468   --    Has_Specified_Stream_Output         (Flag191)
5469   --    Has_Specified_Stream_Read           (Flag192)
5470   --    Has_Specified_Stream_Write          (Flag193)
5471   --    Has_Static_Predicate                (Flag269)
5472   --    Has_Static_Predicate_Aspect         (Flag259)
5473   --    Has_Task                            (Flag30)   (base type only)
5474   --    Has_Unchecked_Union                 (Flag123)  (base type only)
5475   --    Has_Volatile_Components             (Flag87)   (base type only)
5476   --    In_Use                              (Flag8)
5477   --    Is_Abstract_Type                    (Flag146)
5478   --    Is_Asynchronous                     (Flag81)
5479   --    Is_Atomic                           (Flag85)
5480   --    Is_Constr_Subt_For_U_Nominal        (Flag80)
5481   --    Is_Constr_Subt_For_UN_Aliased       (Flag141)
5482   --    Is_Controlled                       (Flag42)   (base type only)
5483   --    Is_Eliminated                       (Flag124)
5484   --    Is_Frozen                           (Flag4)
5485   --    Is_Generic_Actual_Type              (Flag94)
5486   --    Is_Independent                      (Flag268)
5487   --    Is_Non_Static_Subtype               (Flag109)
5488   --    Is_Packed                           (Flag51)   (base type only)
5489   --    Is_Private_Composite                (Flag107)
5490   --    Is_RACW_Stub_Type                   (Flag244)
5491   --    Is_Unsigned_Type                    (Flag144)
5492   --    Is_Volatile                         (Flag16)
5493   --    Is_Volatile_Full_Access             (Flag285)
5494   --    Itype_Printed                       (Flag202)  (itypes only)
5495   --    Known_To_Have_Preelab_Init          (Flag207)
5496   --    May_Inherit_Delayed_Rep_Aspects     (Flag262)
5497   --    Must_Be_On_Byte_Boundary            (Flag183)
5498   --    Must_Have_Preelab_Init              (Flag208)
5499   --    Optimize_Alignment_Space            (Flag241)
5500   --    Optimize_Alignment_Time             (Flag242)
5501   --    Partial_View_Has_Unknown_Discr      (Flag280)
5502   --    Size_Depends_On_Discriminant        (Flag177)
5503   --    Size_Known_At_Compile_Time          (Flag92)
5504   --    Strict_Alignment                    (Flag145)  (base type only)
5505   --    Suppress_Initialization             (Flag105)
5506   --    Treat_As_Volatile                   (Flag41)
5507   --    Universal_Aliasing                  (Flag216)  (impl base type only)
5508
5509   --    Alignment_Clause                    (synth)
5510   --    Base_Type                           (synth)
5511   --    Default_Init_Cond_Procedure         (synth)
5512   --    Implementation_Base_Type            (synth)
5513   --    Invariant_Procedure                 (synth)
5514   --    Is_Access_Protected_Subprogram_Type (synth)
5515   --    Is_Atomic_Or_VFA                    (synth)
5516   --    Is_Controlled_Active                (synth)
5517   --    Predicate_Function                  (synth)
5518   --    Predicate_Function_M                (synth)
5519   --    Root_Type                           (synth)
5520   --    Size_Clause                         (synth)
5521
5522   ------------------------------------------
5523   -- Applicable attributes by entity kind --
5524   ------------------------------------------
5525
5526   --  E_Abstract_State
5527   --    Refinement_Constituents             (Elist8)
5528   --    Part_Of_Constituents                (Elist10)
5529   --    Body_References                     (Elist16)
5530   --    Non_Limited_View                    (Node19)
5531   --    Encapsulating_State                 (Node32)
5532   --    From_Limited_With                   (Flag159)
5533   --    Has_Visible_Refinement              (Flag263)
5534   --    Has_Non_Limited_View                (synth)
5535   --    Has_Non_Null_Visible_Refinement     (synth)
5536   --    Has_Null_Visible_Refinement         (synth)
5537   --    Is_External_State                   (synth)
5538   --    Is_Null_State                       (synth)
5539   --    Is_Synchronized_State               (synth)
5540
5541   --  E_Access_Protected_Subprogram_Type
5542   --    Equivalent_Type                     (Node18)
5543   --    Directly_Designated_Type            (Node20)
5544   --    Needs_No_Actuals                    (Flag22)
5545   --    Can_Use_Internal_Rep                (Flag229)
5546   --    (plus type attributes)
5547
5548   --  E_Access_Subprogram_Type
5549   --    Equivalent_Type                     (Node18)   (remote types only)
5550   --    Directly_Designated_Type            (Node20)
5551   --    Needs_No_Actuals                    (Flag22)
5552   --    Original_Access_Type                (Node28)
5553   --    Can_Use_Internal_Rep                (Flag229)
5554   --    (plus type attributes)
5555
5556   --  E_Access_Type
5557   --  E_Access_Subtype
5558   --    Master_Id                           (Node17)
5559   --    Directly_Designated_Type            (Node20)
5560   --    Associated_Storage_Pool             (Node22)   (base type only)
5561   --    Finalization_Master                 (Node23)   (base type only)
5562   --    Storage_Size_Variable               (Node26)   (base type only)
5563   --    Has_Pragma_Controlled               (Flag27)   (base type only)
5564   --    Has_Storage_Size_Clause             (Flag23)   (base type only)
5565   --    Is_Access_Constant                  (Flag69)
5566   --    Is_Local_Anonymous_Access           (Flag194)
5567   --    Is_Pure_Unit_Access_Type            (Flag189)
5568   --    No_Pool_Assigned                    (Flag131)  (base type only)
5569   --    No_Strict_Aliasing                  (Flag136)  (base type only)
5570   --    Is_Param_Block_Component_Type       (Flag215)  (base type only)
5571   --    (plus type attributes)
5572
5573   --  E_Access_Attribute_Type
5574   --    Directly_Designated_Type            (Node20)
5575   --    (plus type attributes)
5576
5577   --  E_Allocator_Type
5578   --    Directly_Designated_Type            (Node20)
5579   --    (plus type attributes)
5580
5581   --  E_Anonymous_Access_Subprogram_Type
5582   --  E_Anonymous_Access_Protected_Subprogram_Type
5583   --    Directly_Designated_Type            (Node20)
5584   --    Storage_Size_Variable               (Node26)   ??? is this needed ???
5585   --    Can_Use_Internal_Rep                (Flag229)
5586   --    (plus type attributes)
5587
5588   --  E_Anonymous_Access_Type
5589   --    Directly_Designated_Type            (Node20)
5590   --    Finalization_Master                 (Node23)
5591   --    Storage_Size_Variable               (Node26)   ??? is this needed ???
5592   --    (plus type attributes)
5593
5594   --  E_Array_Type
5595   --  E_Array_Subtype
5596   --    First_Index                         (Node17)
5597   --    Default_Aspect_Component_Value      (Node19)   (base type only)
5598   --    Component_Type                      (Node20)   (base type only)
5599   --    Original_Array_Type                 (Node21)
5600   --    Component_Size                      (Uint22)   (base type only)
5601   --    Packed_Array_Impl_Type              (Node23)
5602   --    Related_Array_Object                (Node25)
5603   --    Component_Alignment                 (special)  (base type only)
5604   --    Has_Component_Size_Clause           (Flag68)   (base type only)
5605   --    Has_Pragma_Pack                     (Flag121)  (impl base type only)
5606   --    Is_Constrained                      (Flag12)
5607   --    Reverse_Storage_Order               (Flag93)   (base type only)
5608   --    SSO_Set_High_By_Default             (Flag273)  (base type only)
5609   --    SSO_Set_Low_By_Default              (Flag272)  (base type only)
5610   --    Next_Index                          (synth)
5611   --    Number_Dimensions                   (synth)
5612   --    (plus type attributes)
5613
5614   --  E_Block
5615   --    Block_Node                          (Node11)
5616   --    First_Entity                        (Node17)
5617   --    Last_Entity                         (Node20)
5618   --    Scope_Depth_Value                   (Uint22)
5619   --    Entry_Cancel_Parameter              (Node23)
5620   --    Contains_Ignored_Ghost_Code         (Flag279)
5621   --    Delay_Cleanups                      (Flag114)
5622   --    Discard_Names                       (Flag88)
5623   --    Has_Master_Entity                   (Flag21)
5624   --    Has_Nested_Block_With_Handler       (Flag101)
5625   --    Sec_Stack_Needed_For_Return         (Flag167)
5626   --    Uses_Sec_Stack                      (Flag95)
5627   --    Scope_Depth                         (synth)
5628
5629   --  E_Class_Wide_Type
5630   --  E_Class_Wide_Subtype
5631   --    Direct_Primitive_Operations         (Elist10)
5632   --    Cloned_Subtype                      (Node16)   (subtype case only)
5633   --    First_Entity                        (Node17)
5634   --    Equivalent_Type                     (Node18)   (always Empty for type)
5635   --    Last_Entity                         (Node20)
5636   --    Non_Limited_View                    (Node19)
5637   --    SSO_Set_High_By_Default             (Flag273)  (base type only)
5638   --    SSO_Set_Low_By_Default              (Flag272)  (base type only)
5639   --    First_Component                     (synth)
5640   --    First_Component_Or_Discriminant     (synth)
5641   --    Has_Non_Limited_View                (synth)
5642   --    (plus type attributes)
5643
5644   --  E_Component
5645   --    Normalized_First_Bit                (Uint8)
5646   --    Current_Value                       (Node9)    (always Empty)
5647   --    Normalized_Position_Max             (Uint10)
5648   --    Component_Bit_Offset                (Uint11)
5649   --    Esize                               (Uint12)
5650   --    Component_Clause                    (Node13)
5651   --    Normalized_Position                 (Uint14)
5652   --    DT_Entry_Count                      (Uint15)
5653   --    Entry_Formal                        (Node16)
5654   --    Prival                              (Node17)
5655   --    Renamed_Object                      (Node18)   (always Empty)
5656   --    Discriminant_Checking_Func          (Node20)
5657   --    Original_Record_Component           (Node22)
5658   --    DT_Offset_To_Top_Func               (Node25)
5659   --    Related_Type                        (Node27)
5660   --    Has_Biased_Representation           (Flag139)
5661   --    Has_Per_Object_Constraint           (Flag154)
5662   --    Is_Atomic                           (Flag85)
5663   --    Is_Independent                      (Flag268)
5664   --    Is_Return_Object                    (Flag209)
5665   --    Is_Tag                              (Flag78)
5666   --    Is_Volatile                         (Flag16)
5667   --    Is_Volatile_Full_Access             (Flag285)
5668   --    Treat_As_Volatile                   (Flag41)
5669   --    Is_Atomic_Or_VFA                    (synth)
5670   --    Next_Component                      (synth)
5671   --    Next_Component_Or_Discriminant      (synth)
5672
5673   --  E_Constant
5674   --  E_Loop_Parameter
5675   --    Current_Value                       (Node9)    (always Empty)
5676   --    Discriminal_Link                    (Node10)
5677   --    Full_View                           (Node11)
5678   --    Esize                               (Uint12)
5679   --    Extra_Accessibility                 (Node13)   (constants only)
5680   --    Alignment                           (Uint14)
5681   --    Status_Flag_Or_Transient_Decl       (Node15)   (constants only)
5682   --    Actual_Subtype                      (Node17)
5683   --    Renamed_Object                      (Node18)
5684   --    Size_Check_Code                     (Node19)   (constants only)
5685   --    Prival_Link                         (Node20)   (privals only)
5686   --    Interface_Name                      (Node21)   (constants only)
5687   --    Related_Type                        (Node27)   (constants only)
5688   --    Initialization_Statements           (Node28)
5689   --    BIP_Initialization_Call             (Node29)
5690   --    Last_Aggregate_Assignment           (Node30)
5691   --    Activation_Record_Component         (Node31)
5692   --    Encapsulating_State                 (Node32)   (constants only)
5693   --    Linker_Section_Pragma               (Node33)
5694   --    Contract                            (Node34)   (constants only)
5695   --    Has_Alignment_Clause                (Flag46)
5696   --    Has_Atomic_Components               (Flag86)
5697   --    Has_Biased_Representation           (Flag139)
5698   --    Has_Completion                      (Flag26)   (constants only)
5699   --    Has_Independent_Components          (Flag34)
5700   --    Has_Size_Clause                     (Flag29)
5701   --    Has_Thunks                          (Flag228)  (constants only)
5702   --    Has_Volatile_Components             (Flag87)
5703   --    Is_Atomic                           (Flag85)
5704   --    Is_Eliminated                       (Flag124)
5705   --    Is_Independent                      (Flag268)
5706   --    Is_Processed_Transient              (Flag252)  (constants only)
5707   --    Is_Return_Object                    (Flag209)
5708   --    Is_True_Constant                    (Flag163)
5709   --    Is_Uplevel_Referenced_Entity        (Flag283)
5710   --    Is_Volatile                         (Flag16)
5711   --    Is_Volatile_Full_Access             (Flag285)
5712   --    Optimize_Alignment_Space            (Flag241)  (constants only)
5713   --    Optimize_Alignment_Time             (Flag242)  (constants only)
5714   --    Stores_Attribute_Old_Prefix         (Flag270)  (constants only)
5715   --    Treat_As_Volatile                   (Flag41)
5716   --    Address_Clause                      (synth)
5717   --    Alignment_Clause                    (synth)
5718   --    Is_Atomic_Or_VFA                    (synth)
5719   --    Size_Clause                         (synth)
5720
5721   --  E_Decimal_Fixed_Point_Type
5722   --  E_Decimal_Fixed_Subtype
5723   --    Scale_Value                         (Uint16)
5724   --    Digits_Value                        (Uint17)
5725   --    Scalar_Range                        (Node20)
5726   --    Delta_Value                         (Ureal18)
5727   --    Small_Value                         (Ureal21)
5728   --    Static_Real_Or_String_Predicate     (Node25)
5729   --    Has_Machine_Radix_Clause            (Flag83)
5730   --    Machine_Radix_10                    (Flag84)
5731   --    Aft_Value                           (synth)
5732   --    Type_Low_Bound                      (synth)
5733   --    Type_High_Bound                     (synth)
5734   --    (plus type attributes)
5735
5736   --  E_Discriminant
5737   --    Normalized_First_Bit                (Uint8)
5738   --    Current_Value                       (Node9)    (always Empty)
5739   --    Normalized_Position_Max             (Uint10)
5740   --    Component_Bit_Offset                (Uint11)
5741   --    Esize                               (Uint12)
5742   --    Component_Clause                    (Node13)
5743   --    Normalized_Position                 (Uint14)
5744   --    Discriminant_Number                 (Uint15)
5745   --    Discriminal                         (Node17)
5746   --    Renamed_Object                      (Node18)   (always Empty)
5747   --    Corresponding_Discriminant          (Node19)
5748   --    Discriminant_Default_Value          (Node20)
5749   --    Original_Record_Component           (Node22)
5750   --    CR_Discriminant                     (Node23)
5751   --    Is_Completely_Hidden                (Flag103)
5752   --    Is_Return_Object                    (Flag209)
5753   --    Next_Component_Or_Discriminant      (synth)
5754   --    Next_Discriminant                   (synth)
5755   --    Next_Stored_Discriminant            (synth)
5756
5757   --  E_Entry
5758   --  E_Entry_Family
5759   --    Protected_Body_Subprogram           (Node11)
5760   --    Barrier_Function                    (Node12)
5761   --    Postconditions_Proc                 (Node14)
5762   --    Entry_Parameters_Type               (Node15)
5763   --    First_Entity                        (Node17)
5764   --    Alias                               (Node18)   (for entry only. Empty)
5765   --    Last_Entity                         (Node20)
5766   --    Accept_Address                      (Elist21)
5767   --    Scope_Depth_Value                   (Uint22)
5768   --    Protection_Object                   (Node23)   (protected kind)
5769   --    Contract_Wrapper                    (Node25)
5770   --    Extra_Formals                       (Node28)
5771   --    Contract                            (Node34)
5772   --    SPARK_Pragma                        (Node40)   (protected kind)
5773   --    Needs_No_Actuals                    (Flag22)
5774   --    Uses_Sec_Stack                      (Flag95)
5775   --    Default_Expressions_Processed       (Flag108)
5776   --    Entry_Accepted                      (Flag152)
5777   --    Sec_Stack_Needed_For_Return         (Flag167)
5778   --    Has_Expanded_Contract               (Flag240)
5779   --    SPARK_Pragma_Inherited              (Flag265)  (protected kind)
5780   --    Address_Clause                      (synth)
5781   --    Entry_Index_Type                    (synth)
5782   --    First_Formal                        (synth)
5783   --    First_Formal_With_Extras            (synth)
5784   --    Last_Formal                         (synth)
5785   --    Number_Formals                      (synth)
5786   --    Scope_Depth                         (synth)
5787
5788   --  E_Entry_Index_Parameter
5789   --    Entry_Index_Constant                (Node18)
5790
5791   --  E_Enumeration_Literal
5792   --    Enumeration_Pos                     (Uint11)
5793   --    Enumeration_Rep                     (Uint12)
5794   --    Alias                               (Node18)
5795   --    Enumeration_Rep_Expr                (Node22)
5796   --    Next_Literal                        (synth)
5797
5798   --  E_Enumeration_Type
5799   --  E_Enumeration_Subtype
5800   --    Lit_Strings                         (Node16)   (root type only)
5801   --    First_Literal                       (Node17)
5802   --    Lit_Indexes                         (Node18)   (root type only)
5803   --    Default_Aspect_Value                (Node19)   (base type only)
5804   --    Scalar_Range                        (Node20)
5805   --    Enum_Pos_To_Rep                     (Node23)   (type only)
5806   --    Static_Discrete_Predicate           (List25)
5807   --    Has_Biased_Representation           (Flag139)
5808   --    Has_Contiguous_Rep                  (Flag181)
5809   --    Has_Enumeration_Rep_Clause          (Flag66)
5810   --    Has_Pragma_Ordered                  (Flag198)  (base type only)
5811   --    Nonzero_Is_True                     (Flag162)  (base type only)
5812   --    No_Predicate_On_Actual              (Flag275)
5813   --    No_Dynamic_Predicate_On_Actual      (Flag276)
5814   --    Type_Low_Bound                      (synth)
5815   --    Type_High_Bound                     (synth)
5816   --    (plus type attributes)
5817
5818   --  E_Exception
5819   --    Esize                               (Uint12)
5820   --    Alignment                           (Uint14)
5821   --    Renamed_Entity                      (Node18)
5822   --    Register_Exception_Call             (Node20)
5823   --    Interface_Name                      (Node21)
5824   --    Discard_Names                       (Flag88)
5825   --    Is_Raised                           (Flag224)
5826
5827   --  E_Exception_Type
5828   --    Equivalent_Type                     (Node18)
5829   --    (plus type attributes)
5830
5831   --  E_Floating_Point_Type
5832   --  E_Floating_Point_Subtype
5833   --    Digits_Value                        (Uint17)
5834   --    Float_Rep                           (Uint10)   (Float_Rep_Kind)
5835   --    Default_Aspect_Value                (Node19)   (base type only)
5836   --    Scalar_Range                        (Node20)
5837   --    Static_Real_Or_String_Predicate     (Node25)
5838   --    Machine_Emax_Value                  (synth)
5839   --    Machine_Emin_Value                  (synth)
5840   --    Machine_Mantissa_Value              (synth)
5841   --    Machine_Radix_Value                 (synth)
5842   --    Model_Emin_Value                    (synth)
5843   --    Model_Epsilon_Value                 (synth)
5844   --    Model_Mantissa_Value                (synth)
5845   --    Model_Small_Value                   (synth)
5846   --    Safe_Emax_Value                     (synth)
5847   --    Safe_First_Value                    (synth)
5848   --    Safe_Last_Value                     (synth)
5849   --    Type_Low_Bound                      (synth)
5850   --    Type_High_Bound                     (synth)
5851   --    (plus type attributes)
5852
5853   --  E_Function
5854   --  E_Generic_Function
5855   --    Mechanism                           (Uint8)    (Mechanism_Type)
5856   --    Renaming_Map                        (Uint9)
5857   --    Handler_Records                     (List10)   (non-generic case only)
5858   --    Protected_Body_Subprogram           (Node11)
5859   --    Next_Inlined_Subprogram             (Node12)
5860   --    Elaboration_Entity                  (Node13)   (not implicit /=)
5861   --    Postconditions_Proc                 (Node14)   (non-generic case only)
5862   --    DT_Position                         (Uint15)
5863   --    DTC_Entity                          (Node16)
5864   --    First_Entity                        (Node17)
5865   --    Alias                               (Node18)   (non-generic case only)
5866   --    Renamed_Entity                      (Node18)   (generic case only)
5867   --    Extra_Accessibility_Of_Result       (Node19)   (non-generic case only)
5868   --    Last_Entity                         (Node20)
5869   --    Interface_Name                      (Node21)
5870   --    Scope_Depth_Value                   (Uint22)
5871   --    Generic_Renamings                   (Elist23)  (for an instance)
5872   --    Inner_Instances                     (Elist23)  (generic case only)
5873   --    Protection_Object                   (Node23)   (for concurrent kind)
5874   --    Subps_Index                         (Uint24)   (non-generic case only)
5875   --    Interface_Alias                     (Node25)
5876   --    Overridden_Operation                (Node26)
5877   --    Wrapped_Entity                      (Node27)   (non-generic case only)
5878   --    Extra_Formals                       (Node28)
5879   --    Subprograms_For_Type                (Node29)
5880   --    Corresponding_Equality              (Node30)   (implicit /= only)
5881   --    Thunk_Entity                        (Node31)   (thunk case only)
5882   --    Linker_Section_Pragma               (Node33)
5883   --    Contract                            (Node34)
5884   --    Import_Pragma                       (Node35)   (non-generic case only)
5885   --    Anonymous_Master                    (Node36)   (non-generic case only)
5886   --    Class_Wide_Preconds                 (List38)
5887   --    Class_Wide_Postconds                (List39)
5888   --    SPARK_Pragma                        (Node40)
5889   --    Body_Needed_For_SAL                 (Flag40)
5890   --    Contains_Ignored_Ghost_Code         (Flag279)
5891   --    Default_Expressions_Processed       (Flag108)
5892   --    Delay_Cleanups                      (Flag114)
5893   --    Delay_Subprogram_Descriptors        (Flag50)
5894   --    Discard_Names                       (Flag88)
5895   --    Elaboration_Entity_Required         (Flag174)
5896   --    Has_Completion                      (Flag26)
5897   --    Has_Controlling_Result              (Flag98)
5898   --    Has_Expanded_Contract               (Flag240)  (non-generic case only)
5899   --    Has_Invariants                      (Flag232)
5900   --    Has_Master_Entity                   (Flag21)
5901   --    Has_Missing_Return                  (Flag142)
5902   --    Has_Nested_Block_With_Handler       (Flag101)
5903   --    Has_Nested_Subprogram               (Flag282)
5904   --    Has_Out_Or_In_Out_Parameter         (Flag110)
5905   --    Has_Recursive_Call                  (Flag143)
5906   --    Is_Abstract_Subprogram              (Flag19)   (non-generic case only)
5907   --    Is_Called                           (Flag102)  (non-generic case only)
5908   --    Is_Constructor                      (Flag76)
5909   --    Is_Discrim_SO_Function              (Flag176)
5910   --    Is_Discriminant_Check_Function      (Flag264)
5911   --    Is_Eliminated                       (Flag124)
5912   --    Is_Generic_Actual_Subprogram        (Flag274)  (non-generic case only)
5913   --    Is_Hidden_Non_Overridden_Subpgm     (Flag2)    (non-generic case only)
5914   --    Is_Inlined_Always                   (Flag1)    (non-generic case only)
5915   --    Is_Instantiated                     (Flag126)  (generic case only)
5916   --    Is_Intrinsic_Subprogram             (Flag64)
5917   --    Is_Invariant_Procedure              (Flag257)  (non-generic case only)
5918   --    Is_Machine_Code_Subprogram          (Flag137)  (non-generic case only)
5919   --    Is_Predicate_Function               (Flag255)  (non-generic case only)
5920   --    Is_Predicate_Function_M             (Flag256)  (non-generic case only)
5921   --    Is_Primitive                        (Flag218)
5922   --    Is_Primitive_Wrapper                (Flag195)  (non-generic case only)
5923   --    Is_Private_Descendant               (Flag53)
5924   --    Is_Private_Primitive                (Flag245)  (non-generic case only)
5925   --    Is_Pure                             (Flag44)
5926   --    Is_Visible_Lib_Unit                 (Flag116)
5927   --    Needs_No_Actuals                    (Flag22)
5928   --    Requires_Overriding                 (Flag213)  (non-generic case only)
5929   --    Return_Present                      (Flag54)
5930   --    Returns_By_Ref                      (Flag90)
5931   --    Returns_Limited_View                (Flag134)  (non-generic case only)
5932   --    Rewritten_For_C                     (Flag287)
5933   --    Sec_Stack_Needed_For_Return         (Flag167)
5934   --    SPARK_Pragma_Inherited              (Flag265)
5935   --    Uses_Sec_Stack                      (Flag95)
5936   --    Address_Clause                      (synth)
5937   --    First_Formal                        (synth)
5938   --    First_Formal_With_Extras            (synth)
5939   --    Last_Formal                         (synth)
5940   --    Number_Formals                      (synth)
5941   --    Scope_Depth                         (synth)
5942
5943   --  E_General_Access_Type
5944   --    Master_Id                           (Node17)
5945   --    Directly_Designated_Type            (Node20)
5946   --    Associated_Storage_Pool             (Node22)   (root type only)
5947   --    Finalization_Master                 (Node23)   (root type only)
5948   --    Storage_Size_Variable               (Node26)   (base type only)
5949   --    (plus type attributes)
5950
5951   --  E_Generic_In_Parameter
5952   --  E_Generic_In_Out_Parameter
5953   --    Current_Value                       (Node9)    (always Empty)
5954   --    Entry_Component                     (Node11)
5955   --    Actual_Subtype                      (Node17)
5956   --    Renamed_Object                      (Node18)   (always Empty)
5957   --    Default_Value                       (Node20)
5958   --    Protected_Formal                    (Node22)
5959   --    Is_Controlling_Formal               (Flag97)
5960   --    Is_Return_Object                    (Flag209)
5961   --    Parameter_Mode                      (synth)
5962
5963   --  E_Incomplete_Type
5964   --  E_Incomplete_Subtype
5965   --    Direct_Primitive_Operations         (Elist10)
5966   --    Non_Limited_View                    (Node19)
5967   --    Private_Dependents                  (Elist18)
5968   --    Discriminant_Constraint             (Elist21)
5969   --    Stored_Constraint                   (Elist23)
5970   --    Has_Non_Limited_View                (synth)
5971   --    (plus type attributes)
5972
5973   --  E_In_Parameter
5974   --  E_In_Out_Parameter
5975   --  E_Out_Parameter
5976   --    Mechanism                           (Uint8)    (Mechanism_Type)
5977   --    Current_Value                       (Node9)
5978   --    Discriminal_Link                    (Node10)   (discriminals only)
5979   --    Entry_Component                     (Node11)
5980   --    Esize                               (Uint12)
5981   --    Extra_Accessibility                 (Node13)
5982   --    Alignment                           (Uint14)
5983   --    Extra_Formal                        (Node15)
5984   --    Unset_Reference                     (Node16)
5985   --    Actual_Subtype                      (Node17)
5986   --    Renamed_Object                      (Node18)
5987   --    Spec_Entity                         (Node19)
5988   --    Default_Value                       (Node20)
5989   --    Default_Expr_Function               (Node21)
5990   --    Protected_Formal                    (Node22)
5991   --    Extra_Constrained                   (Node23)
5992   --    Last_Assignment                     (Node26)   (OUT, IN-OUT only)
5993   --    Activation_Record_Component         (Node31)
5994   --    Has_Initial_Value                   (Flag219)
5995   --    Is_Controlling_Formal               (Flag97)
5996   --    Is_Only_Out_Parameter               (Flag226)
5997   --    Low_Bound_Tested                    (Flag205)
5998   --    Is_Return_Object                    (Flag209)
5999   --    Parameter_Mode                      (synth)
6000
6001   --  E_Label
6002   --    Enclosing_Scope                     (Node18)
6003   --    Reachable                           (Flag49)
6004
6005   --  E_Limited_Private_Type
6006   --  E_Limited_Private_Subtype
6007   --    First_Entity                        (Node17)
6008   --    Private_Dependents                  (Elist18)
6009   --    Underlying_Full_View                (Node19)
6010   --    Last_Entity                         (Node20)
6011   --    Discriminant_Constraint             (Elist21)
6012   --    Private_View                        (Node22)
6013   --    Stored_Constraint                   (Elist23)
6014   --    Has_Completion                      (Flag26)
6015   --    (plus type attributes)
6016
6017   --  E_Loop
6018   --    First_Exit_Statement                (Node8)
6019   --    Has_Exit                            (Flag47)
6020   --    Has_Loop_Entry_Attributes           (Flag260)
6021   --    Has_Master_Entity                   (Flag21)
6022   --    Has_Nested_Block_With_Handler       (Flag101)
6023   --    Uses_Sec_Stack                      (Flag95)
6024
6025   --  E_Modular_Integer_Type
6026   --  E_Modular_Integer_Subtype
6027   --    Modulus                             (Uint17)   (base type only)
6028   --    Default_Aspect_Value                (Node19)   (base type only)
6029   --    Original_Array_Type                 (Node21)
6030   --    Scalar_Range                        (Node20)
6031   --    Static_Discrete_Predicate           (List25)
6032   --    Non_Binary_Modulus                  (Flag58)   (base type only)
6033   --    Has_Biased_Representation           (Flag139)
6034   --    Has_Shift_Operator                  (Flag267)  (base type only)
6035   --    No_Predicate_On_Actual              (Flag275)
6036   --    No_Dynamic_Predicate_On_Actual      (Flag276)
6037   --    Type_Low_Bound                      (synth)
6038   --    Type_High_Bound                     (synth)
6039   --    (plus type attributes)
6040
6041   --  E_Named_Integer
6042
6043   --  E_Named_Real
6044
6045   --  E_Operator
6046   --    First_Entity                        (Node17)
6047   --    Alias                               (Node18)
6048   --    Extra_Accessibility_Of_Result       (Node19)
6049   --    Last_Entity                         (Node20)
6050   --    Subps_Index                         (Uint24)
6051   --    Overridden_Operation                (Node26)
6052   --    Subprograms_For_Type                (Node29)
6053   --    Linker_Section_Pragma               (Node33)
6054   --    Contract                            (Node34)
6055   --    Import_Pragma                       (Node35)
6056   --    SPARK_Pragma                        (Node40)
6057   --    Default_Expressions_Processed       (Flag108)
6058   --    Has_Invariants                      (Flag232)
6059   --    Has_Nested_Subprogram               (Flag282)
6060   --    Is_Intrinsic_Subprogram             (Flag64)
6061   --    Is_Machine_Code_Subprogram          (Flag137)
6062   --    Is_Primitive                        (Flag218)
6063   --    Is_Pure                             (Flag44)
6064   --    SPARK_Pragma_Inherited              (Flag265)
6065   --    Aren't there more flags and fields? seems like this list should be
6066   --    more similar to the E_Function list, which is much longer ???
6067
6068   --  E_Ordinary_Fixed_Point_Type
6069   --  E_Ordinary_Fixed_Point_Subtype
6070   --    Delta_Value                         (Ureal18)
6071   --    Default_Aspect_Value                (Node19)   (base type only)
6072   --    Scalar_Range                        (Node20)
6073   --    Static_Real_Or_String_Predicate     (Node25)
6074   --    Small_Value                         (Ureal21)
6075   --    Has_Small_Clause                    (Flag67)
6076   --    Aft_Value                           (synth)
6077   --    Type_Low_Bound                      (synth)
6078   --    Type_High_Bound                     (synth)
6079   --    (plus type attributes)
6080
6081   --  E_Package
6082   --  E_Generic_Package
6083   --    Dependent_Instances                 (Elist8)   (for an instance)
6084   --    Renaming_Map                        (Uint9)
6085   --    Handler_Records                     (List10)   (non-generic case only)
6086   --    Generic_Homonym                     (Node11)   (generic case only)
6087   --    Associated_Formal_Package           (Node12)
6088   --    Elaboration_Entity                  (Node13)
6089   --    Shadow_Entities                     (List14)
6090   --    Related_Instance                    (Node15)   (non-generic case only)
6091   --    First_Private_Entity                (Node16)
6092   --    First_Entity                        (Node17)
6093   --    Renamed_Entity                      (Node18)
6094   --    Body_Entity                         (Node19)
6095   --    Last_Entity                         (Node20)
6096   --    Interface_Name                      (Node21)
6097   --    Scope_Depth_Value                   (Uint22)
6098   --    Generic_Renamings                   (Elist23)  (for an instance)
6099   --    Inner_Instances                     (Elist23)  (generic case only)
6100   --    Limited_View                        (Node23)   (non-generic/instance)
6101   --    Incomplete_Actuals                  (Elist24)  (for an instance)
6102   --    Abstract_States                     (Elist25)
6103   --    Package_Instantiation               (Node26)
6104   --    Current_Use_Clause                  (Node27)
6105   --    Finalizer                           (Node28)   (non-generic case only)
6106   --    Contract                            (Node34)
6107   --    Anonymous_Master                    (Node36)   (non-generic case only)
6108   --    SPARK_Pragma                        (Node40)
6109   --    SPARK_Aux_Pragma                    (Node41)
6110   --    Delay_Subprogram_Descriptors        (Flag50)
6111   --    Body_Needed_For_SAL                 (Flag40)
6112   --    Contains_Ignored_Ghost_Code         (Flag279)
6113   --    Discard_Names                       (Flag88)
6114   --    Elaboration_Entity_Required         (Flag174)
6115   --    Elaborate_Body_Desirable            (Flag210)  (non-generic case only)
6116   --    From_Limited_With                   (Flag159)
6117   --    Has_All_Calls_Remote                (Flag79)
6118   --    Has_Completion                      (Flag26)
6119   --    Has_Forward_Instantiation           (Flag175)
6120   --    Has_Master_Entity                   (Flag21)
6121   --    Has_RACW                            (Flag214)  (non-generic case only)
6122   --    In_Package_Body                     (Flag48)
6123   --    In_Use                              (Flag8)
6124   --    Is_Instantiated                     (Flag126)
6125   --    Is_Private_Descendant               (Flag53)
6126   --    Is_Visible_Lib_Unit                 (Flag116)
6127   --    Renamed_In_Spec                     (Flag231)  (non-generic case only)
6128   --    SPARK_Aux_Pragma_Inherited          (Flag266)
6129   --    SPARK_Pragma_Inherited              (Flag265)
6130   --    Static_Elaboration_Desired          (Flag77)   (non-generic case only)
6131   --    Has_Null_Abstract_State             (synth)
6132   --    Is_Wrapper_Package                  (synth)    (non-generic case only)
6133   --    Scope_Depth                         (synth)
6134
6135   --  E_Package_Body
6136   --    Handler_Records                     (List10)   (non-generic case only)
6137   --    Related_Instance                    (Node15)   (non-generic case only)
6138   --    First_Entity                        (Node17)
6139   --    Spec_Entity                         (Node19)
6140   --    Last_Entity                         (Node20)
6141   --    Scope_Depth_Value                   (Uint22)
6142   --    Finalizer                           (Node28)   (non-generic case only)
6143   --    Contract                            (Node34)
6144   --    Anonymous_Master                    (Node36)
6145   --    SPARK_Pragma                        (Node40)
6146   --    SPARK_Aux_Pragma                    (Node41)
6147   --    Contains_Ignored_Ghost_Code         (Flag279)
6148   --    Delay_Subprogram_Descriptors        (Flag50)
6149   --    SPARK_Aux_Pragma_Inherited          (Flag266)
6150   --    SPARK_Pragma_Inherited              (Flag265)
6151   --    Scope_Depth                         (synth)
6152
6153   --  E_Private_Type
6154   --  E_Private_Subtype
6155   --    Direct_Primitive_Operations         (Elist10)
6156   --    First_Entity                        (Node17)
6157   --    Private_Dependents                  (Elist18)
6158   --    Underlying_Full_View                (Node19)
6159   --    Last_Entity                         (Node20)
6160   --    Discriminant_Constraint             (Elist21)
6161   --    Private_View                        (Node22)
6162   --    Stored_Constraint                   (Elist23)
6163   --    Has_Completion                      (Flag26)
6164   --    Is_Controlled                       (Flag42)   (base type only)
6165   --    Is_For_Access_Subtype               (Flag118)  (subtype only)
6166   --    (plus type attributes)
6167
6168   --  E_Procedure
6169   --  E_Generic_Procedure
6170   --    Renaming_Map                        (Uint9)
6171   --    Handler_Records                     (List10)   (non-generic case only)
6172   --    Protected_Body_Subprogram           (Node11)
6173   --    Next_Inlined_Subprogram             (Node12)
6174   --    Elaboration_Entity                  (Node13)
6175   --    Postconditions_Proc                 (Node14)   (non-generic case only)
6176   --    DT_Position                         (Uint15)
6177   --    DTC_Entity                          (Node16)
6178   --    First_Entity                        (Node17)
6179   --    Alias                               (Node18)   (non-generic case only)
6180   --    Renamed_Entity                      (Node18)   (generic case only)
6181   --    Last_Entity                         (Node20)
6182   --    Interface_Name                      (Node21)
6183   --    Scope_Depth_Value                   (Uint22)
6184   --    Generic_Renamings                   (Elist23)  (for an instance)
6185   --    Inner_Instances                     (Elist23)  (generic case only)
6186   --    Protection_Object                   (Node23)   (for concurrent kind)
6187   --    Subps_Index                         (Uint24)   (non-generic case only)
6188   --    Interface_Alias                     (Node25)
6189   --    Overridden_Operation                (Node26)   (never for init proc)
6190   --    Wrapped_Entity                      (Node27)   (non-generic case only)
6191   --    Extra_Formals                       (Node28)
6192   --    Static_Initialization               (Node30)   (init_proc only)
6193   --    Thunk_Entity                        (Node31)   (thunk case only)
6194   --    Linker_Section_Pragma               (Node33)
6195   --    Contract                            (Node34)
6196   --    Import_Pragma                       (Node35)   (non-generic case only)
6197   --    Anonymous_Master                    (Node36)   (non-generic case only)
6198   --    Class_Wide_Preconds                 (List38)
6199   --    Class_Wide_Postconds                (List39)
6200   --    SPARK_Pragma                        (Node40)
6201   --    Body_Needed_For_SAL                 (Flag40)
6202   --    Contains_Ignored_Ghost_Code         (Flag279)
6203   --    Delay_Cleanups                      (Flag114)
6204   --    Discard_Names                       (Flag88)
6205   --    Elaboration_Entity_Required         (Flag174)
6206   --    Default_Expressions_Processed       (Flag108)
6207   --    Delay_Cleanups                      (Flag114)
6208   --    Delay_Subprogram_Descriptors        (Flag50)
6209   --    Discard_Names                       (Flag88)
6210   --    Has_Completion                      (Flag26)
6211   --    Has_Expanded_Contract               (Flag240)  (non-generic case only)
6212   --    Has_Invariants                      (Flag232)
6213   --    Has_Master_Entity                   (Flag21)
6214   --    Has_Nested_Block_With_Handler       (Flag101)
6215   --    Has_Nested_Subprogram               (Flag282)
6216   --    Is_Abstract_Subprogram              (Flag19)   (non-generic case only)
6217   --    Is_Asynchronous                     (Flag81)
6218   --    Is_Called                           (Flag102)  (non-generic case only)
6219   --    Is_Constructor                      (Flag76)
6220   --    Is_Default_Init_Cond_Procedure      (Flag132)  (non-generic case only)
6221   --    Is_Eliminated                       (Flag124)
6222   --    Is_Generic_Actual_Subprogram        (Flag274)  (non-generic case only)
6223   --    Is_Hidden_Non_Overridden_Subpgm     (Flag2)    (non-generic case only)
6224   --    Is_Inlined_Always                   (Flag1)    (non-generic case only)
6225   --    Is_Instantiated                     (Flag126)  (generic case only)
6226   --    Is_Interrupt_Handler                (Flag89)
6227   --    Is_Intrinsic_Subprogram             (Flag64)
6228   --    Is_Invariant_Procedure              (Flag257)  (non-generic case only)
6229   --    Is_Machine_Code_Subprogram          (Flag137)  (non-generic case only)
6230   --    Is_Null_Init_Proc                   (Flag178)
6231   --    Is_Predicate_Function               (Flag255)  (non-generic case only)
6232   --    Is_Predicate_Function_M             (Flag256)  (non-generic case only)
6233   --    Is_Primitive                        (Flag218)
6234   --    Is_Primitive_Wrapper                (Flag195)  (non-generic case only)
6235   --    Is_Private_Descendant               (Flag53)
6236   --    Is_Private_Primitive                (Flag245)  (non-generic case only)
6237   --    Is_Pure                             (Flag44)
6238   --    Is_Valued_Procedure                 (Flag127)
6239   --    Is_Visible_Lib_Unit                 (Flag116)
6240   --    Needs_No_Actuals                    (Flag22)
6241   --    No_Return                           (Flag113)
6242   --    Requires_Overriding                 (Flag213)  (non-generic case only)
6243   --    Sec_Stack_Needed_For_Return         (Flag167)
6244   --    SPARK_Pragma_Inherited              (Flag265)
6245   --    Address_Clause                      (synth)
6246   --    First_Formal                        (synth)
6247   --    First_Formal_With_Extras            (synth)
6248   --    Is_Finalizer                        (synth)
6249   --    Last_Formal                         (synth)
6250   --    Number_Formals                      (synth)
6251
6252   --  E_Protected_Body
6253   --    SPARK_Pragma                        (Node40)
6254   --    SPARK_Pragma_Inherited              (Flag265)
6255   --    (any others??? First/Last Entity, Scope_Depth???)
6256
6257   --  E_Protected_Object
6258
6259   --  E_Protected_Type
6260   --  E_Protected_Subtype
6261   --    Direct_Primitive_Operations         (Elist10)
6262   --    First_Private_Entity                (Node16)
6263   --    First_Entity                        (Node17)
6264   --    Corresponding_Record_Type           (Node18)
6265   --    Entry_Bodies_Array                  (Node19)
6266   --    Last_Entity                         (Node20)
6267   --    Discriminant_Constraint             (Elist21)
6268   --    Scope_Depth_Value                   (Uint22)
6269   --    Stored_Constraint                   (Elist23)
6270   --    Anonymous_Object                    (Node30)
6271   --    Contract                            (Node34)
6272   --    SPARK_Pragma                        (Node40)
6273   --    SPARK_Aux_Pragma                    (Node41)
6274   --    Sec_Stack_Needed_For_Return         (Flag167)  ???
6275   --    SPARK_Aux_Pragma_Inherited          (Flag266)
6276   --    SPARK_Pragma_Inherited              (Flag265)
6277   --    Uses_Lock_Free                      (Flag188)
6278   --    Uses_Sec_Stack                      (Flag95)   ???
6279   --    First_Component                     (synth)
6280   --    First_Component_Or_Discriminant     (synth)
6281   --    Has_Entries                         (synth)
6282   --    Has_Interrupt_Handler               (synth)
6283   --    Number_Entries                      (synth)
6284   --    Scope_Depth                         (synth)
6285   --    (plus type attributes)
6286
6287   --  E_Record_Type
6288   --  E_Record_Subtype
6289   --    Direct_Primitive_Operations         (Elist10)
6290   --    Access_Disp_Table                   (Elist16)  (base type only)
6291   --    Cloned_Subtype                      (Node16)   (subtype case only)
6292   --    First_Entity                        (Node17)
6293   --    Corresponding_Concurrent_Type       (Node18)
6294   --    Parent_Subtype                      (Node19)   (base type only)
6295   --    Last_Entity                         (Node20)
6296   --    Discriminant_Constraint             (Elist21)
6297   --    Corresponding_Remote_Type           (Node22)
6298   --    Stored_Constraint                   (Elist23)
6299   --    Interfaces                          (Elist25)
6300   --    Dispatch_Table_Wrappers             (Elist26)  (base type only)
6301   --    Underlying_Record_View              (Node28)   (base type only)
6302   --    Component_Alignment                 (special)  (base type only)
6303   --    C_Pass_By_Copy                      (Flag125)  (base type only)
6304   --    Has_Dispatch_Table                  (Flag220)  (base tagged type only)
6305   --    Has_Pragma_Pack                     (Flag121)  (impl base type only)
6306   --    Has_Private_Ancestor                (Flag151)
6307   --    Has_Record_Rep_Clause               (Flag65)   (base type only)
6308   --    Has_Static_Discriminants            (Flag211)  (subtype only)
6309   --    Is_Class_Wide_Equivalent_Type       (Flag35)
6310   --    Is_Concurrent_Record_Type           (Flag20)
6311   --    Is_Constrained                      (Flag12)
6312   --    Is_Controlled                       (Flag42)   (base type only)
6313   --    Is_Interface                        (Flag186)
6314   --    Is_Limited_Interface                (Flag197)
6315   --    OK_To_Reorder_Components            (Flag239)  (base type only)
6316   --    Reverse_Bit_Order                   (Flag164)  (base type only)
6317   --    Reverse_Storage_Order               (Flag93)   (base type only)
6318   --    SSO_Set_High_By_Default             (Flag273)  (base type only)
6319   --    SSO_Set_Low_By_Default              (Flag272)  (base type only)
6320   --    First_Component                     (synth)
6321   --    First_Component_Or_Discriminant     (synth)
6322   --    (plus type attributes)
6323
6324   --  E_Record_Type_With_Private
6325   --  E_Record_Subtype_With_Private
6326   --    Direct_Primitive_Operations         (Elist10)
6327   --    First_Entity                        (Node17)
6328   --    Private_Dependents                  (Elist18)
6329   --    Underlying_Full_View                (Node19)
6330   --    Last_Entity                         (Node20)
6331   --    Discriminant_Constraint             (Elist21)
6332   --    Private_View                        (Node22)
6333   --    Stored_Constraint                   (Elist23)
6334   --    Interfaces                          (Elist25)
6335   --    Has_Completion                      (Flag26)
6336   --    Has_Private_Ancestor                (Flag151)
6337   --    Has_Record_Rep_Clause               (Flag65)   (base type only)
6338   --    Is_Concurrent_Record_Type           (Flag20)
6339   --    Is_Constrained                      (Flag12)
6340   --    Is_Controlled                       (Flag42)   (base type only)
6341   --    Is_Interface                        (Flag186)
6342   --    Is_Limited_Interface                (Flag197)
6343   --    OK_To_Reorder_Components            (Flag239)  (base type only)
6344   --    Reverse_Bit_Order                   (Flag164)  (base type only)
6345   --    Reverse_Storage_Order               (Flag93)   (base type only)
6346   --    SSO_Set_High_By_Default             (Flag273)  (base type only)
6347   --    SSO_Set_Low_By_Default              (Flag272)  (base type only)
6348   --    First_Component                     (synth)
6349   --    First_Component_Or_Discriminant     (synth)
6350   --    (plus type attributes)
6351
6352   --  E_Return_Statement
6353   --    Return_Applies_To                   (Node8)
6354
6355   --  E_Signed_Integer_Type
6356   --  E_Signed_Integer_Subtype
6357   --    Default_Aspect_Value                (Node19)   (base type only)
6358   --    Scalar_Range                        (Node20)
6359   --    Static_Discrete_Predicate           (List25)
6360   --    Has_Biased_Representation           (Flag139)
6361   --    Has_Shift_Operator                  (Flag267)  (base type only)
6362   --    No_Predicate_On_Actual              (Flag275)
6363   --    No_Dynamic_Predicate_On_Actual      (Flag276)
6364   --    Type_Low_Bound                      (synth)
6365   --    Type_High_Bound                     (synth)
6366   --    (plus type attributes)
6367
6368   --  E_String_Literal_Subtype
6369   --    String_Literal_Length               (Uint16)
6370   --    First_Index                         (Node17)   (always Empty)
6371   --    String_Literal_Low_Bound            (Node18)
6372   --    Packed_Array_Impl_Type              (Node23)
6373   --    (plus type attributes)
6374
6375   --  E_Subprogram_Body
6376   --    Mechanism                           (Uint8)
6377   --    First_Entity                        (Node17)
6378   --    Corresponding_Protected_Entry       (Node18)
6379   --    Last_Entity                         (Node20)
6380   --    Scope_Depth_Value                   (Uint22)
6381   --    Extra_Formals                       (Node28)
6382   --    Contract                            (Node34)
6383   --    Anonymous_Master                    (Node36)
6384   --    SPARK_Pragma                        (Node40)
6385   --    Contains_Ignored_Ghost_Code         (Flag279)
6386   --    SPARK_Pragma_Inherited              (Flag265)
6387   --    Scope_Depth                         (synth)
6388
6389   --  E_Subprogram_Type
6390   --    Extra_Accessibility_Of_Result       (Node19)
6391   --    Directly_Designated_Type            (Node20)
6392   --    Extra_Formals                       (Node28)
6393   --    First_Formal                        (synth)
6394   --    First_Formal_With_Extras            (synth)
6395   --    Last_Formal                         (synth)
6396   --    Number_Formals                      (synth)
6397   --    (plus type attributes)
6398
6399   --  E_Task_Body
6400   --    Contract                            (Node34)
6401   --    SPARK_Pragma                        (Node40)
6402   --    SPARK_Pragma_Inherited              (Flag265)
6403   --    (any others??? First/Last Entity, Scope_Depth???)
6404
6405   --  E_Task_Type
6406   --  E_Task_Subtype
6407   --    Direct_Primitive_Operations         (Elist10)
6408   --    First_Private_Entity                (Node16)
6409   --    First_Entity                        (Node17)
6410   --    Corresponding_Record_Type           (Node18)
6411   --    Last_Entity                         (Node20)
6412   --    Discriminant_Constraint             (Elist21)
6413   --    Scope_Depth_Value                   (Uint22)
6414   --    Stored_Constraint                   (Elist23)
6415   --    Task_Body_Procedure                 (Node25)
6416   --    Storage_Size_Variable               (Node26)   (base type only)
6417   --    Relative_Deadline_Variable          (Node28)   (base type only)
6418   --    Anonymous_Object                    (Node30)
6419   --    Contract                            (Node34)
6420   --    SPARK_Pragma                        (Node40)
6421   --    SPARK_Aux_Pragma                    (Node41)
6422   --    Delay_Cleanups                      (Flag114)
6423   --    Has_Master_Entity                   (Flag21)
6424   --    Has_Storage_Size_Clause             (Flag23)   (base type only)
6425   --    Sec_Stack_Needed_For_Return         (Flag167)  ???
6426   --    SPARK_Aux_Pragma_Inherited          (Flag266)
6427   --    SPARK_Pragma_Inherited              (Flag265)
6428   --    Uses_Sec_Stack                      (Flag95)   ???
6429   --    First_Component                     (synth)
6430   --    First_Component_Or_Discriminant     (synth)
6431   --    Has_Entries                         (synth)
6432   --    Number_Entries                      (synth)
6433   --    Scope_Depth                         (synth)
6434   --    (plus type attributes)
6435
6436   --  E_Variable
6437   --    Hiding_Loop_Variable                (Node8)
6438   --    Current_Value                       (Node9)
6439   --    Part_Of_Constituents                (Elist10)
6440   --    Part_Of_References                  (Elist11)
6441   --    Esize                               (Uint12)
6442   --    Extra_Accessibility                 (Node13)
6443   --    Alignment                           (Uint14)
6444   --    Status_Flag_Or_Transient_Decl       (Node15)   (transient object only)
6445   --    Unset_Reference                     (Node16)
6446   --    Actual_Subtype                      (Node17)
6447   --    Renamed_Object                      (Node18)
6448   --    Size_Check_Code                     (Node19)
6449   --    Prival_Link                         (Node20)
6450   --    Interface_Name                      (Node21)
6451   --    Shared_Var_Procs_Instance           (Node22)
6452   --    Extra_Constrained                   (Node23)
6453   --    Related_Expression                  (Node24)
6454   --    Debug_Renaming_Link                 (Node25)
6455   --    Last_Assignment                     (Node26)
6456   --    Related_Type                        (Node27)
6457   --    Initialization_Statements           (Node28)
6458   --    BIP_Initialization_Call             (Node29)
6459   --    Last_Aggregate_Assignment           (Node30)
6460   --    Activation_Record_Component         (Node31)
6461   --    Encapsulating_State                 (Node32)
6462   --    Linker_Section_Pragma               (Node33)
6463   --    Contract                            (Node34)
6464   --    SPARK_Pragma                        (Node40)
6465   --    Has_Alignment_Clause                (Flag46)
6466   --    Has_Atomic_Components               (Flag86)
6467   --    Has_Biased_Representation           (Flag139)
6468   --    Has_Independent_Components          (Flag34)
6469   --    Has_Initial_Value                   (Flag219)
6470   --    Has_Size_Clause                     (Flag29)
6471   --    Has_Volatile_Components             (Flag87)
6472   --    Is_Atomic                           (Flag85)
6473   --    Is_Eliminated                       (Flag124)
6474   --    Is_Independent                      (Flag268)
6475   --    Is_Processed_Transient              (Flag252)
6476   --    Is_Return_Object                    (Flag209)
6477   --    Is_Safe_To_Reevaluate               (Flag249)
6478   --    Is_Shared_Passive                   (Flag60)
6479   --    Is_True_Constant                    (Flag163)
6480   --    Is_Uplevel_Referenced_Entity        (Flag283)
6481   --    Is_Volatile                         (Flag16)
6482   --    Is_Volatile_Full_Access             (Flag285)
6483   --    OK_To_Rename                        (Flag247)
6484   --    Optimize_Alignment_Space            (Flag241)
6485   --    Optimize_Alignment_Time             (Flag242)
6486   --    SPARK_Pragma_Inherited              (Flag265)
6487   --    Suppress_Initialization             (Flag105)
6488   --    Treat_As_Volatile                   (Flag41)
6489   --    Address_Clause                      (synth)
6490   --    Alignment_Clause                    (synth)
6491   --    Is_Atomic_Or_VFA                    (synth)
6492   --    Size_Clause                         (synth)
6493
6494   --  E_Void
6495   --    Since E_Void is the initial Ekind value of an entity when it is first
6496   --    created, one might expect that no attributes would be defined on such
6497   --    an entity until its Ekind field is set. However, in practice, there
6498   --    are many instances in which fields of an E_Void entity are set in the
6499   --    code prior to setting the Ekind field. This is not well documented or
6500   --    well controlled, and needs cleaning up later. Meanwhile, the access
6501   --    procedures in the body of Einfo permit many, but not all, attributes
6502   --    to be applied to an E_Void entity, precisely so that this kind of
6503   --    pre-setting of attributes works. This is really a hole in the dynamic
6504   --    type checking, since there is no assurance that the eventual Ekind
6505   --    value will be appropriate for the attributes set, and the consequence
6506   --    is that the dynamic type checking in the Einfo body is unnecessarily
6507   --    weak. To be looked at systematically some time ???
6508
6509   ---------------------------------
6510   -- Component_Alignment Control --
6511   ---------------------------------
6512
6513   --  There are four types of alignment possible for array and record
6514   --  types, and a field in the type entities contains a value of the
6515   --  following type indicating which alignment choice applies. For full
6516   --  details of the meaning of these alignment types, see description
6517   --  of the Component_Alignment pragma.
6518
6519   type Component_Alignment_Kind is (
6520      Calign_Default,          -- default alignment
6521      Calign_Component_Size,   -- natural alignment for component size
6522      Calign_Component_Size_4, -- natural for size <= 4, 4 for size >= 4
6523      Calign_Storage_Unit);    -- all components byte aligned
6524
6525   -----------------------------------
6526   -- Floating Point Representation --
6527   -----------------------------------
6528
6529   type Float_Rep_Kind is (
6530      IEEE_Binary,  -- IEEE 754p conforming binary format
6531      AAMP);        -- AAMP format
6532
6533   ---------------
6534   -- Iterators --
6535   ---------------
6536
6537   --  In addition to attributes that are stored as plain data, other
6538   --  attributes are procedural, and require some small amount of
6539   --  computation. Of course, from the point of view of a user of this
6540   --  package, the distinction is not visible (even the field information
6541   --  provided below should be disregarded, as it is subject to change
6542   --  without notice). A number of attributes appear as lists: lists of
6543   --  formals, lists of actuals, of discriminants, etc. For these, pairs
6544   --  of functions are defined, which take the form:
6545
6546   --      function First_Thing (E : Enclosing_Construct) return Thing;
6547   --      function Next_Thing (T : Thing) return Thing;
6548
6549   --  The end of iteration is always signaled by a value of Empty, so that
6550   --  loops over these chains invariably have the form:
6551
6552   --      This : Thing;
6553   --      ...
6554   --      This := First_Thing (E);
6555
6556   --      while Present (This) loop
6557   --         Do_Something_With (This);
6558   --        ...
6559   --        This := Next_Thing (This);
6560   --      end loop;
6561
6562   -----------------------------------
6563   -- Handling of Check Suppression --
6564   -----------------------------------
6565
6566   --  There are three ways that checks can be suppressed:
6567
6568   --    1.  At the command line level
6569   --    2.  At the scope level.
6570   --    3.  At the entity level.
6571
6572   --  See spec of Sem in sem.ads for details of the data structures used
6573   --  to keep track of these various methods for suppressing checks.
6574
6575   -------------------------------
6576   -- Handling of Discriminants --
6577   -------------------------------
6578
6579   --  During semantic processing, discriminants are separate entities which
6580   --  reflect the semantic properties and allowed usage of discriminants in
6581   --  the language.
6582
6583   --  In the case of discriminants used as bounds, the references are handled
6584   --  directly, since special processing is needed in any case. However, there
6585   --  are two circumstances in which discriminants are referenced in a quite
6586   --  general manner, like any other variables:
6587
6588   --     In initialization expressions for records. Note that the expressions
6589   --     used in Priority, Storage_Size, Task_Info and Relative_Deadline
6590   --     pragmas are effectively in this category, since these pragmas are
6591   --     converted to initialized record fields in the Corresponding_Record_
6592   --     Type.
6593
6594   --     In task and protected bodies, where the discriminant values may be
6595   --     referenced freely within these bodies. Discriminants can also appear
6596   --     in bounds of entry families and in defaults of operations.
6597
6598   --  In both these cases, the discriminants must be treated essentially as
6599   --  objects. The following approach is used to simplify and minimize the
6600   --  special processing that is required.
6601
6602   --  When a record type with discriminants is analyzed, semantic processing
6603   --  creates the entities for the discriminants. It also creates additional
6604   --  sets of entities called discriminals, one for each of the discriminants,
6605   --  and the Discriminal field of the discriminant entity points to this
6606   --  additional entity, which is initially created as an uninitialized
6607   --  (E_Void) entity.
6608
6609   --  During expansion of expressions, any discriminant reference is replaced
6610   --  by a reference to the corresponding discriminal. When the initialization
6611   --  procedure for the record is created (there will always be one, since
6612   --  discriminants are present, see Exp_Ch3 for further details), the
6613   --  discriminals are used as the entities for the formal parameters of
6614   --  this initialization procedure. The references to these discriminants
6615   --  have already been replaced by references to these discriminals, which
6616   --  are now the formal parameters corresponding to the required objects.
6617
6618   --  In the case of a task or protected body, the semantics similarly creates
6619   --  a set of discriminals for the discriminants of the task or protected
6620   --  type. When the procedure is created for the task body, the parameter
6621   --  passed in is a reference to the task value type, which contains the
6622   --  required discriminant values. The expander creates a set of declarations
6623   --  of the form:
6624
6625   --      discr_nameD : constant discr_type renames _task.discr_name;
6626
6627   --  where discr_nameD is the discriminal entity referenced by the task
6628   --  discriminant, and _task is the task value passed in as the parameter.
6629   --  Again, any references to discriminants in the task body have been
6630   --  replaced by the discriminal reference, which is now an object that
6631   --  contains the required value.
6632
6633   --  This approach for tasks means that two sets of discriminals are needed
6634   --  for a task type, one for the initialization procedure, and one for the
6635   --  task body. This works out nicely, since the semantics allocates one set
6636   --  for the task itself, and one set for the corresponding record.
6637
6638   --  The one bit of trickiness arises in making sure that the right set of
6639   --  discriminals is used at the right time. First the task definition is
6640   --  processed. Any references to discriminants here are replaced by the
6641   --  corresponding *task* discriminals (the record type doesn't even exist
6642   --  yet, since it is constructed as part of the expansion of the task
6643   --  declaration, which happens after the semantic processing of the task
6644   --  definition). The discriminants to be used for the corresponding record
6645   --  are created at the same time as the other discriminals, and held in the
6646   --  CR_Discriminant field of the discriminant. A use of the discriminant in
6647   --  a bound for an entry family is replaced with the CR_Discriminant because
6648   --  it controls the bound of the entry queue array which is a component of
6649   --  the corresponding record.
6650
6651   --  Just before the record initialization routine is constructed, the
6652   --  expander exchanges the task and record discriminals. This has two
6653   --  effects. First the generation of the record initialization routine
6654   --  uses the discriminals that are now on the record, which is the set
6655   --  that used to be on the task, which is what we want.
6656
6657   --  Second, a new set of (so far unused) discriminals is now on the task
6658   --  discriminants, and it is this set that will be used for expanding the
6659   --  task body, and also for the discriminal declarations at the start of
6660   --  the task body.
6661
6662   ---------------------------------------------------
6663   -- Handling of private data in protected objects --
6664   ---------------------------------------------------
6665
6666   --  Private components in protected types pose problems similar to those
6667   --  of discriminants. Private data is visible and can be directly referenced
6668   --  from protected bodies. However, when protected entries and subprograms
6669   --  are expanded into corresponding bodies and barrier functions, private
6670   --  components lose their original context and visibility.
6671
6672   --  To remedy this side effect of expansion, private components are expanded
6673   --  into renamings called "privals", by analogy with "discriminals".
6674
6675   --     private_comp : comp_type renames _object.private_comp;
6676
6677   --  Prival declarations are inserted during the analysis of subprogram and
6678   --  entry bodies to ensure proper visibility for any subsequent expansion.
6679   --  _Object is the formal parameter of the generated corresponding body or
6680   --  a local renaming which denotes the protected object obtained from entry
6681   --  parameter _O. Privals receive minimal decoration upon creation and are
6682   --  categorized as either E_Variable for the general case or E_Constant when
6683   --  they appear in functions.
6684
6685   --  Along with the local declarations, each private component carries a
6686   --  placeholder which references the prival entity in the current body. This
6687   --  form of indirection is used to resolve name clashes of privals and other
6688   --  locally visible entities such as parameters, local objects, entry family
6689   --  indexes or identifiers used in the barrier condition.
6690
6691   --  When analyzing the statements of a protected subprogram or entry, any
6692   --  reference to a private component must resolve to the locally declared
6693   --  prival through normal visibility. In case of name conflicts (the cases
6694   --  above), the prival is marked as hidden and acts as a weakly declared
6695   --  entity. As a result, the reference points to the correct entity. When a
6696   --  private component is denoted by an expanded name (prot_type.comp for
6697   --  example), the expansion mechanism uses the placeholder of the component
6698   --  to correct the Entity and Etype of the reference.
6699
6700   -------------------
6701   -- Type Synonyms --
6702   -------------------
6703
6704   --  The following type synonyms are used to tidy up the function and
6705   --  procedure declarations that follow, and also to make it possible to meet
6706   --  the requirement for the XEINFO utility that all function specs must fit
6707   --  on a single source line.
6708
6709   subtype B is Boolean;
6710   subtype C is Component_Alignment_Kind;
6711   subtype E is Entity_Id;
6712   subtype F is Float_Rep_Kind;
6713   subtype M is Mechanism_Type;
6714   subtype N is Node_Id;
6715   subtype U is Uint;
6716   subtype R is Ureal;
6717   subtype L is Elist_Id;
6718   subtype S is List_Id;
6719
6720   --------------------------------
6721   -- Attribute Access Functions --
6722   --------------------------------
6723
6724   --  All attributes are manipulated through a procedural interface. This
6725   --  section contains the functions used to obtain attribute values which
6726   --  correspond to values in fields or flags in the entity itself.
6727
6728   function Abstract_States                     (Id : E) return L;
6729   function Accept_Address                      (Id : E) return L;
6730   function Access_Disp_Table                   (Id : E) return L;
6731   function Activation_Record_Component         (Id : E) return E;
6732   function Actual_Subtype                      (Id : E) return E;
6733   function Address_Taken                       (Id : E) return B;
6734   function Alias                               (Id : E) return E;
6735   function Alignment                           (Id : E) return U;
6736   function Anonymous_Master                    (Id : E) return E;
6737   function Anonymous_Object                    (Id : E) return E;
6738   function Associated_Entity                   (Id : E) return E;
6739   function Associated_Formal_Package           (Id : E) return E;
6740   function Associated_Node_For_Itype           (Id : E) return N;
6741   function Associated_Storage_Pool             (Id : E) return E;
6742   function Barrier_Function                    (Id : E) return N;
6743   function BIP_Initialization_Call             (Id : E) return N;
6744   function Block_Node                          (Id : E) return N;
6745   function Body_Entity                         (Id : E) return E;
6746   function Body_Needed_For_SAL                 (Id : E) return B;
6747   function Body_References                     (Id : E) return L;
6748   function C_Pass_By_Copy                      (Id : E) return B;
6749   function Can_Never_Be_Null                   (Id : E) return B;
6750   function Can_Use_Internal_Rep                (Id : E) return B;
6751   function Checks_May_Be_Suppressed            (Id : E) return B;
6752   function Class_Wide_Postconds                (Id : E) return S;
6753   function Class_Wide_Preconds                 (Id : E) return S;
6754   function Class_Wide_Type                     (Id : E) return E;
6755   function Cloned_Subtype                      (Id : E) return E;
6756   function Component_Alignment                 (Id : E) return C;
6757   function Component_Bit_Offset                (Id : E) return U;
6758   function Component_Clause                    (Id : E) return N;
6759   function Component_Size                      (Id : E) return U;
6760   function Component_Type                      (Id : E) return E;
6761   function Contains_Ignored_Ghost_Code         (Id : E) return B;
6762   function Contract                            (Id : E) return N;
6763   function Contract_Wrapper                    (Id : E) return E;
6764   function Corresponding_Concurrent_Type       (Id : E) return E;
6765   function Corresponding_Discriminant          (Id : E) return E;
6766   function Corresponding_Equality              (Id : E) return E;
6767   function Corresponding_Protected_Entry       (Id : E) return E;
6768   function Corresponding_Record_Type           (Id : E) return E;
6769   function Corresponding_Remote_Type           (Id : E) return E;
6770   function CR_Discriminant                     (Id : E) return E;
6771   function Current_Use_Clause                  (Id : E) return E;
6772   function Current_Value                       (Id : E) return N;
6773   function Debug_Info_Off                      (Id : E) return B;
6774   function Debug_Renaming_Link                 (Id : E) return E;
6775   function Default_Aspect_Component_Value      (Id : E) return N;
6776   function Default_Aspect_Value                (Id : E) return N;
6777   function Default_Expr_Function               (Id : E) return E;
6778   function Default_Expressions_Processed       (Id : E) return B;
6779   function Default_Value                       (Id : E) return N;
6780   function Delay_Cleanups                      (Id : E) return B;
6781   function Delay_Subprogram_Descriptors        (Id : E) return B;
6782   function Delta_Value                         (Id : E) return R;
6783   function Dependent_Instances                 (Id : E) return L;
6784   function Depends_On_Private                  (Id : E) return B;
6785   function Derived_Type_Link                   (Id : E) return E;
6786   function Digits_Value                        (Id : E) return U;
6787   function Direct_Primitive_Operations         (Id : E) return L;
6788   function Directly_Designated_Type            (Id : E) return E;
6789   function Disable_Controlled                  (Id : E) return B;
6790   function Discard_Names                       (Id : E) return B;
6791   function Discriminal                         (Id : E) return E;
6792   function Discriminal_Link                    (Id : E) return E;
6793   function Discriminant_Checking_Func          (Id : E) return E;
6794   function Discriminant_Constraint             (Id : E) return L;
6795   function Discriminant_Default_Value          (Id : E) return N;
6796   function Discriminant_Number                 (Id : E) return U;
6797   function Dispatch_Table_Wrappers             (Id : E) return L;
6798   function DT_Entry_Count                      (Id : E) return U;
6799   function DT_Offset_To_Top_Func               (Id : E) return E;
6800   function DT_Position                         (Id : E) return U;
6801   function DTC_Entity                          (Id : E) return E;
6802   function Elaborate_Body_Desirable            (Id : E) return B;
6803   function Elaboration_Entity                  (Id : E) return E;
6804   function Elaboration_Entity_Required         (Id : E) return B;
6805   function Encapsulating_State                 (Id : E) return E;
6806   function Enclosing_Scope                     (Id : E) return E;
6807   function Entry_Accepted                      (Id : E) return B;
6808   function Entry_Bodies_Array                  (Id : E) return E;
6809   function Entry_Cancel_Parameter              (Id : E) return E;
6810   function Entry_Component                     (Id : E) return E;
6811   function Entry_Formal                        (Id : E) return E;
6812   function Entry_Index_Constant                (Id : E) return E;
6813   function Entry_Index_Type                    (Id : E) return E;
6814   function Entry_Parameters_Type               (Id : E) return E;
6815   function Enum_Pos_To_Rep                     (Id : E) return E;
6816   function Enumeration_Pos                     (Id : E) return U;
6817   function Enumeration_Rep                     (Id : E) return U;
6818   function Enumeration_Rep_Expr                (Id : E) return N;
6819   function Equivalent_Type                     (Id : E) return E;
6820   function Esize                               (Id : E) return U;
6821   function Extra_Accessibility                 (Id : E) return E;
6822   function Extra_Accessibility_Of_Result       (Id : E) return E;
6823   function Extra_Constrained                   (Id : E) return E;
6824   function Extra_Formal                        (Id : E) return E;
6825   function Extra_Formals                       (Id : E) return E;
6826   function Finalization_Master                 (Id : E) return E;
6827   function Finalize_Storage_Only               (Id : E) return B;
6828   function Finalizer                           (Id : E) return E;
6829   function First_Entity                        (Id : E) return E;
6830   function First_Exit_Statement                (Id : E) return N;
6831   function First_Index                         (Id : E) return N;
6832   function First_Literal                       (Id : E) return E;
6833   function First_Private_Entity                (Id : E) return E;
6834   function First_Rep_Item                      (Id : E) return N;
6835   function Float_Rep                           (Id : E) return F;
6836   function Freeze_Node                         (Id : E) return N;
6837   function From_Limited_With                   (Id : E) return B;
6838   function Full_View                           (Id : E) return E;
6839   function Generic_Homonym                     (Id : E) return E;
6840   function Generic_Renamings                   (Id : E) return L;
6841   function Handler_Records                     (Id : E) return S;
6842   function Has_Aliased_Components              (Id : E) return B;
6843   function Has_Alignment_Clause                (Id : E) return B;
6844   function Has_All_Calls_Remote                (Id : E) return B;
6845   function Has_Atomic_Components               (Id : E) return B;
6846   function Has_Biased_Representation           (Id : E) return B;
6847   function Has_Completion                      (Id : E) return B;
6848   function Has_Completion_In_Body              (Id : E) return B;
6849   function Has_Complex_Representation          (Id : E) return B;
6850   function Has_Component_Size_Clause           (Id : E) return B;
6851   function Has_Constrained_Partial_View        (Id : E) return B;
6852   function Has_Contiguous_Rep                  (Id : E) return B;
6853   function Has_Controlled_Component            (Id : E) return B;
6854   function Has_Controlling_Result              (Id : E) return B;
6855   function Has_Convention_Pragma               (Id : E) return B;
6856   function Has_Default_Aspect                  (Id : E) return B;
6857   function Has_Default_Init_Cond               (Id : E) return B;
6858   function Has_Delayed_Aspects                 (Id : E) return B;
6859   function Has_Delayed_Freeze                  (Id : E) return B;
6860   function Has_Delayed_Rep_Aspects             (Id : E) return B;
6861   function Has_Discriminants                   (Id : E) return B;
6862   function Has_Dispatch_Table                  (Id : E) return B;
6863   function Has_Dynamic_Predicate_Aspect        (Id : E) return B;
6864   function Has_Enumeration_Rep_Clause          (Id : E) return B;
6865   function Has_Exit                            (Id : E) return B;
6866   function Has_Expanded_Contract               (Id : E) return B;
6867   function Has_Forward_Instantiation           (Id : E) return B;
6868   function Has_Fully_Qualified_Name            (Id : E) return B;
6869   function Has_Gigi_Rep_Item                   (Id : E) return B;
6870   function Has_Homonym                         (Id : E) return B;
6871   function Has_Implicit_Dereference            (Id : E) return B;
6872   function Has_Independent_Components          (Id : E) return B;
6873   function Has_Inheritable_Invariants          (Id : E) return B;
6874   function Has_Inherited_Default_Init_Cond     (Id : E) return B;
6875   function Has_Initial_Value                   (Id : E) return B;
6876   function Has_Interrupt_Handler               (Id : E) return B;
6877   function Has_Invariants                      (Id : E) return B;
6878   function Has_Loop_Entry_Attributes           (Id : E) return B;
6879   function Has_Machine_Radix_Clause            (Id : E) return B;
6880   function Has_Master_Entity                   (Id : E) return B;
6881   function Has_Missing_Return                  (Id : E) return B;
6882   function Has_Nested_Block_With_Handler       (Id : E) return B;
6883   function Has_Nested_Subprogram               (Id : E) return B;
6884   function Has_Non_Standard_Rep                (Id : E) return B;
6885   function Has_Object_Size_Clause              (Id : E) return B;
6886   function Has_Out_Or_In_Out_Parameter         (Id : E) return B;
6887   function Has_Per_Object_Constraint           (Id : E) return B;
6888   function Has_Pragma_Controlled               (Id : E) return B;
6889   function Has_Pragma_Elaborate_Body           (Id : E) return B;
6890   function Has_Pragma_Inline                   (Id : E) return B;
6891   function Has_Pragma_Inline_Always            (Id : E) return B;
6892   function Has_Pragma_No_Inline                (Id : E) return B;
6893   function Has_Pragma_Ordered                  (Id : E) return B;
6894   function Has_Pragma_Pack                     (Id : E) return B;
6895   function Has_Pragma_Preelab_Init             (Id : E) return B;
6896   function Has_Pragma_Pure                     (Id : E) return B;
6897   function Has_Pragma_Pure_Function            (Id : E) return B;
6898   function Has_Pragma_Thread_Local_Storage     (Id : E) return B;
6899   function Has_Pragma_Unmodified               (Id : E) return B;
6900   function Has_Pragma_Unreferenced             (Id : E) return B;
6901   function Has_Pragma_Unreferenced_Objects     (Id : E) return B;
6902   function Has_Predicates                      (Id : E) return B;
6903   function Has_Primitive_Operations            (Id : E) return B;
6904   function Has_Private_Ancestor                (Id : E) return B;
6905   function Has_Private_Declaration             (Id : E) return B;
6906   function Has_Protected                       (Id : E) return B;
6907   function Has_Qualified_Name                  (Id : E) return B;
6908   function Has_RACW                            (Id : E) return B;
6909   function Has_Record_Rep_Clause               (Id : E) return B;
6910   function Has_Recursive_Call                  (Id : E) return B;
6911   function Has_Shift_Operator                  (Id : E) return B;
6912   function Has_Size_Clause                     (Id : E) return B;
6913   function Has_Small_Clause                    (Id : E) return B;
6914   function Has_Specified_Layout                (Id : E) return B;
6915   function Has_Specified_Stream_Input          (Id : E) return B;
6916   function Has_Specified_Stream_Output         (Id : E) return B;
6917   function Has_Specified_Stream_Read           (Id : E) return B;
6918   function Has_Specified_Stream_Write          (Id : E) return B;
6919   function Has_Static_Discriminants            (Id : E) return B;
6920   function Has_Static_Predicate                (Id : E) return B;
6921   function Has_Static_Predicate_Aspect         (Id : E) return B;
6922   function Has_Storage_Size_Clause             (Id : E) return B;
6923   function Has_Stream_Size_Clause              (Id : E) return B;
6924   function Has_Task                            (Id : E) return B;
6925   function Has_Thunks                          (Id : E) return B;
6926   function Has_Unchecked_Union                 (Id : E) return B;
6927   function Has_Unknown_Discriminants           (Id : E) return B;
6928   function Has_Visible_Refinement              (Id : E) return B;
6929   function Has_Volatile_Components             (Id : E) return B;
6930   function Has_Xref_Entry                      (Id : E) return B;
6931   function Hiding_Loop_Variable                (Id : E) return E;
6932   function Homonym                             (Id : E) return E;
6933   function Import_Pragma                       (Id : E) return E;
6934   function Incomplete_Actuals                  (Id : E) return L;
6935   function In_Package_Body                     (Id : E) return B;
6936   function In_Private_Part                     (Id : E) return B;
6937   function In_Use                              (Id : E) return B;
6938   function Initialization_Statements           (Id : E) return N;
6939   function Inner_Instances                     (Id : E) return L;
6940   function Interface_Alias                     (Id : E) return E;
6941   function Interface_Name                      (Id : E) return N;
6942   function Interfaces                          (Id : E) return L;
6943   function Is_Abstract_Subprogram              (Id : E) return B;
6944   function Is_Abstract_Type                    (Id : E) return B;
6945   function Is_Access_Constant                  (Id : E) return B;
6946   function Is_Ada_2005_Only                    (Id : E) return B;
6947   function Is_Ada_2012_Only                    (Id : E) return B;
6948   function Is_Aliased                          (Id : E) return B;
6949   function Is_Asynchronous                     (Id : E) return B;
6950   function Is_Atomic                           (Id : E) return B;
6951   function Is_Atomic_Or_VFA                    (Id : E) return B;
6952   function Is_Bit_Packed_Array                 (Id : E) return B;
6953   function Is_Called                           (Id : E) return B;
6954   function Is_Character_Type                   (Id : E) return B;
6955   function Is_Checked_Ghost_Entity             (Id : E) return B;
6956   function Is_Child_Unit                       (Id : E) return B;
6957   function Is_Class_Wide_Equivalent_Type       (Id : E) return B;
6958   function Is_Compilation_Unit                 (Id : E) return B;
6959   function Is_Completely_Hidden                (Id : E) return B;
6960   function Is_Constr_Subt_For_U_Nominal        (Id : E) return B;
6961   function Is_Constr_Subt_For_UN_Aliased       (Id : E) return B;
6962   function Is_Constrained                      (Id : E) return B;
6963   function Is_Constructor                      (Id : E) return B;
6964   function Is_Controlled                       (Id : E) return B;
6965   function Is_Controlling_Formal               (Id : E) return B;
6966   function Is_CPP_Class                        (Id : E) return B;
6967   function Is_Default_Init_Cond_Procedure      (Id : E) return B;
6968   function Is_Descendent_Of_Address            (Id : E) return B;
6969   function Is_Discrim_SO_Function              (Id : E) return B;
6970   function Is_Discriminant_Check_Function      (Id : E) return B;
6971   function Is_Dispatch_Table_Entity            (Id : E) return B;
6972   function Is_Dispatching_Operation            (Id : E) return B;
6973   function Is_Eliminated                       (Id : E) return B;
6974   function Is_Entry_Formal                     (Id : E) return B;
6975   function Is_Exported                         (Id : E) return B;
6976   function Is_First_Subtype                    (Id : E) return B;
6977   function Is_For_Access_Subtype               (Id : E) return B;
6978   function Is_Frozen                           (Id : E) return B;
6979   function Is_Generic_Instance                 (Id : E) return B;
6980   function Is_Hidden                           (Id : E) return B;
6981   function Is_Hidden_Non_Overridden_Subpgm     (Id : E) return B;
6982   function Is_Hidden_Open_Scope                (Id : E) return B;
6983   function Is_Ignored_Ghost_Entity             (Id : E) return B;
6984   function Is_Immediately_Visible              (Id : E) return B;
6985   function Is_Implementation_Defined           (Id : E) return B;
6986   function Is_Imported                         (Id : E) return B;
6987   function Is_Independent                      (Id : E) return B;
6988   function Is_Inlined                          (Id : E) return B;
6989   function Is_Inlined_Always                   (Id : E) return B;
6990   function Is_Instantiated                     (Id : E) return B;
6991   function Is_Interface                        (Id : E) return B;
6992   function Is_Internal                         (Id : E) return B;
6993   function Is_Interrupt_Handler                (Id : E) return B;
6994   function Is_Intrinsic_Subprogram             (Id : E) return B;
6995   function Is_Invariant_Procedure              (Id : E) return B;
6996   function Is_Itype                            (Id : E) return B;
6997   function Is_Known_Non_Null                   (Id : E) return B;
6998   function Is_Known_Null                       (Id : E) return B;
6999   function Is_Known_Valid                      (Id : E) return B;
7000   function Is_Limited_Composite                (Id : E) return B;
7001   function Is_Limited_Interface                (Id : E) return B;
7002   function Is_Local_Anonymous_Access           (Id : E) return B;
7003   function Is_Machine_Code_Subprogram          (Id : E) return B;
7004   function Is_Non_Static_Subtype               (Id : E) return B;
7005   function Is_Null_Init_Proc                   (Id : E) return B;
7006   function Is_Obsolescent                      (Id : E) return B;
7007   function Is_Only_Out_Parameter               (Id : E) return B;
7008   function Is_Package_Body_Entity              (Id : E) return B;
7009   function Is_Packed                           (Id : E) return B;
7010   function Is_Packed_Array_Impl_Type           (Id : E) return B;
7011   function Is_Potentially_Use_Visible          (Id : E) return B;
7012   function Is_Param_Block_Component_Type       (Id : E) return B;
7013   function Is_Predicate_Function               (Id : E) return B;
7014   function Is_Predicate_Function_M             (Id : E) return B;
7015   function Is_Preelaborated                    (Id : E) return B;
7016   function Is_Primitive                        (Id : E) return B;
7017   function Is_Primitive_Wrapper                (Id : E) return B;
7018   function Is_Private_Composite                (Id : E) return B;
7019   function Is_Private_Descendant               (Id : E) return B;
7020   function Is_Private_Primitive                (Id : E) return B;
7021   function Is_Processed_Transient              (Id : E) return B;
7022   function Is_Public                           (Id : E) return B;
7023   function Is_Pure                             (Id : E) return B;
7024   function Is_Pure_Unit_Access_Type            (Id : E) return B;
7025   function Is_RACW_Stub_Type                   (Id : E) return B;
7026   function Is_Raised                           (Id : E) return B;
7027   function Is_Remote_Call_Interface            (Id : E) return B;
7028   function Is_Remote_Types                     (Id : E) return B;
7029   function Is_Renaming_Of_Object               (Id : E) return B;
7030   function Is_Return_Object                    (Id : E) return B;
7031   function Is_Safe_To_Reevaluate               (Id : E) return B;
7032   function Is_Shared_Passive                   (Id : E) return B;
7033   function Is_Static_Type                      (Id : E) return B;
7034   function Is_Statically_Allocated             (Id : E) return B;
7035   function Is_Tag                              (Id : E) return B;
7036   function Is_Tagged_Type                      (Id : E) return B;
7037   function Is_Thunk                            (Id : E) return B;
7038   function Is_Trivial_Subprogram               (Id : E) return B;
7039   function Is_True_Constant                    (Id : E) return B;
7040   function Is_Unchecked_Union                  (Id : E) return B;
7041   function Is_Underlying_Record_View           (Id : E) return B;
7042   function Is_Unimplemented                    (Id : E) return B;
7043   function Is_Unsigned_Type                    (Id : E) return B;
7044   function Is_Uplevel_Referenced_Entity        (Id : E) return B;
7045   function Is_Valued_Procedure                 (Id : E) return B;
7046   function Is_Visible_Formal                   (Id : E) return B;
7047   function Is_Visible_Lib_Unit                 (Id : E) return B;
7048   function Is_Volatile                         (Id : E) return B;
7049   function Is_Volatile_Full_Access             (Id : E) return B;
7050   function Itype_Printed                       (Id : E) return B;
7051   function Kill_Elaboration_Checks             (Id : E) return B;
7052   function Kill_Range_Checks                   (Id : E) return B;
7053   function Known_To_Have_Preelab_Init          (Id : E) return B;
7054   function Last_Aggregate_Assignment           (Id : E) return N;
7055   function Last_Assignment                     (Id : E) return N;
7056   function Last_Entity                         (Id : E) return E;
7057   function Limited_View                        (Id : E) return E;
7058   function Linker_Section_Pragma               (Id : E) return N;
7059   function Lit_Indexes                         (Id : E) return E;
7060   function Lit_Strings                         (Id : E) return E;
7061   function Low_Bound_Tested                    (Id : E) return B;
7062   function Machine_Radix_10                    (Id : E) return B;
7063   function Master_Id                           (Id : E) return E;
7064   function Materialize_Entity                  (Id : E) return B;
7065   function May_Inherit_Delayed_Rep_Aspects     (Id : E) return B;
7066   function Mechanism                           (Id : E) return M;
7067   function Modulus                             (Id : E) return U;
7068   function Must_Be_On_Byte_Boundary            (Id : E) return B;
7069   function Must_Have_Preelab_Init              (Id : E) return B;
7070   function Needs_Debug_Info                    (Id : E) return B;
7071   function Needs_No_Actuals                    (Id : E) return B;
7072   function Never_Set_In_Source                 (Id : E) return B;
7073   function Next_Inlined_Subprogram             (Id : E) return E;
7074   function No_Dynamic_Predicate_On_Actual      (Id : E) return B;
7075   function No_Pool_Assigned                    (Id : E) return B;
7076   function No_Predicate_On_Actual              (Id : E) return B;
7077   function No_Return                           (Id : E) return B;
7078   function No_Strict_Aliasing                  (Id : E) return B;
7079   function No_Tagged_Streams_Pragma            (Id : E) return N;
7080   function Non_Binary_Modulus                  (Id : E) return B;
7081   function Non_Limited_View                    (Id : E) return E;
7082   function Nonzero_Is_True                     (Id : E) return B;
7083   function Normalized_First_Bit                (Id : E) return U;
7084   function Normalized_Position                 (Id : E) return U;
7085   function Normalized_Position_Max             (Id : E) return U;
7086   function OK_To_Rename                        (Id : E) return B;
7087   function OK_To_Reorder_Components            (Id : E) return B;
7088   function Optimize_Alignment_Space            (Id : E) return B;
7089   function Optimize_Alignment_Time             (Id : E) return B;
7090   function Original_Access_Type                (Id : E) return E;
7091   function Original_Array_Type                 (Id : E) return E;
7092   function Original_Record_Component           (Id : E) return E;
7093   function Overlays_Constant                   (Id : E) return B;
7094   function Overridden_Operation                (Id : E) return E;
7095   function Package_Instantiation               (Id : E) return N;
7096   function Packed_Array_Impl_Type              (Id : E) return E;
7097   function Parent_Subtype                      (Id : E) return E;
7098   function Part_Of_Constituents                (Id : E) return L;
7099   function Part_Of_References                  (Id : E) return L;
7100   function Partial_View_Has_Unknown_Discr      (Id : E) return B;
7101   function Pending_Access_Types                (Id : E) return L;
7102   function Postconditions_Proc                 (Id : E) return E;
7103   function Prival                              (Id : E) return E;
7104   function Prival_Link                         (Id : E) return E;
7105   function Private_Dependents                  (Id : E) return L;
7106   function Private_View                        (Id : E) return N;
7107   function Protected_Body_Subprogram           (Id : E) return E;
7108   function Protected_Formal                    (Id : E) return E;
7109   function Protection_Object                   (Id : E) return E;
7110   function Reachable                           (Id : E) return B;
7111   function Referenced                          (Id : E) return B;
7112   function Referenced_As_LHS                   (Id : E) return B;
7113   function Referenced_As_Out_Parameter         (Id : E) return B;
7114   function Refinement_Constituents             (Id : E) return L;
7115   function Register_Exception_Call             (Id : E) return N;
7116   function Related_Array_Object                (Id : E) return E;
7117   function Related_Expression                  (Id : E) return N;
7118   function Related_Instance                    (Id : E) return E;
7119   function Related_Type                        (Id : E) return E;
7120   function Relative_Deadline_Variable          (Id : E) return E;
7121   function Renamed_Entity                      (Id : E) return N;
7122   function Renamed_In_Spec                     (Id : E) return B;
7123   function Renamed_Object                      (Id : E) return N;
7124   function Renaming_Map                        (Id : E) return U;
7125   function Requires_Overriding                 (Id : E) return B;
7126   function Return_Applies_To                   (Id : E) return N;
7127   function Return_Present                      (Id : E) return B;
7128   function Returns_By_Ref                      (Id : E) return B;
7129   function Returns_Limited_View                (Id : E) return B;
7130   function Reverse_Bit_Order                   (Id : E) return B;
7131   function Reverse_Storage_Order               (Id : E) return B;
7132   function Rewritten_For_C                     (Id : E) return B;
7133   function RM_Size                             (Id : E) return U;
7134   function Scalar_Range                        (Id : E) return N;
7135   function Scale_Value                         (Id : E) return U;
7136   function Scope_Depth_Value                   (Id : E) return U;
7137   function Sec_Stack_Needed_For_Return         (Id : E) return B;
7138   function Shadow_Entities                     (Id : E) return S;
7139   function Shared_Var_Procs_Instance           (Id : E) return E;
7140   function Size_Check_Code                     (Id : E) return N;
7141   function Size_Depends_On_Discriminant        (Id : E) return B;
7142   function Size_Known_At_Compile_Time          (Id : E) return B;
7143   function Small_Value                         (Id : E) return R;
7144   function SPARK_Aux_Pragma                    (Id : E) return N;
7145   function SPARK_Aux_Pragma_Inherited          (Id : E) return B;
7146   function SPARK_Pragma                        (Id : E) return N;
7147   function SPARK_Pragma_Inherited              (Id : E) return B;
7148   function Spec_Entity                         (Id : E) return E;
7149   function SSO_Set_High_By_Default             (Id : E) return B;
7150   function SSO_Set_Low_By_Default              (Id : E) return B;
7151   function Static_Discrete_Predicate           (Id : E) return S;
7152   function Static_Elaboration_Desired          (Id : E) return B;
7153   function Static_Initialization               (Id : E) return N;
7154   function Static_Real_Or_String_Predicate     (Id : E) return N;
7155   function Status_Flag_Or_Transient_Decl       (Id : E) return E;
7156   function Storage_Size_Variable               (Id : E) return E;
7157   function Stored_Constraint                   (Id : E) return L;
7158   function Stores_Attribute_Old_Prefix         (Id : E) return B;
7159   function Strict_Alignment                    (Id : E) return B;
7160   function String_Literal_Length               (Id : E) return U;
7161   function String_Literal_Low_Bound            (Id : E) return N;
7162   function Subprograms_For_Type                (Id : E) return E;
7163   function Subps_Index                         (Id : E) return U;
7164   function Suppress_Elaboration_Warnings       (Id : E) return B;
7165   function Suppress_Initialization             (Id : E) return B;
7166   function Suppress_Style_Checks               (Id : E) return B;
7167   function Suppress_Value_Tracking_On_Call     (Id : E) return B;
7168   function Task_Body_Procedure                 (Id : E) return N;
7169   function Thunk_Entity                        (Id : E) return E;
7170   function Treat_As_Volatile                   (Id : E) return B;
7171   function Underlying_Full_View                (Id : E) return E;
7172   function Underlying_Record_View              (Id : E) return E;
7173   function Universal_Aliasing                  (Id : E) return B;
7174   function Unset_Reference                     (Id : E) return N;
7175   function Used_As_Generic_Actual              (Id : E) return B;
7176   function Uses_Lock_Free                      (Id : E) return B;
7177   function Uses_Sec_Stack                      (Id : E) return B;
7178   function Warnings_Off                        (Id : E) return B;
7179   function Warnings_Off_Used                   (Id : E) return B;
7180   function Warnings_Off_Used_Unmodified        (Id : E) return B;
7181   function Warnings_Off_Used_Unreferenced      (Id : E) return B;
7182   function Was_Hidden                          (Id : E) return B;
7183   function Wrapped_Entity                      (Id : E) return E;
7184
7185   -------------------------------
7186   -- Classification Attributes --
7187   -------------------------------
7188
7189   --  These functions provide a convenient functional notation for testing
7190   --  whether an Ekind value belongs to a specified kind, for example the
7191   --  function Is_Elementary_Type tests if its argument is in Elementary_Kind.
7192   --  In some cases, the test is of an entity attribute (e.g. in the case of
7193   --  Is_Generic_Type where the Ekind does not provide the needed
7194   --  information).
7195
7196   function Is_Access_Type                      (Id : E) return B;
7197   function Is_Access_Protected_Subprogram_Type (Id : E) return B;
7198   function Is_Access_Subprogram_Type           (Id : E) return B;
7199   function Is_Aggregate_Type                   (Id : E) return B;
7200   function Is_Array_Type                       (Id : E) return B;
7201   function Is_Assignable                       (Id : E) return B;
7202   function Is_Class_Wide_Type                  (Id : E) return B;
7203   function Is_Composite_Type                   (Id : E) return B;
7204   function Is_Concurrent_Body                  (Id : E) return B;
7205   function Is_Concurrent_Record_Type           (Id : E) return B;
7206   function Is_Concurrent_Type                  (Id : E) return B;
7207   function Is_Decimal_Fixed_Point_Type         (Id : E) return B;
7208   function Is_Digits_Type                      (Id : E) return B;
7209   function Is_Discrete_Or_Fixed_Point_Type     (Id : E) return B;
7210   function Is_Discrete_Type                    (Id : E) return B;
7211   function Is_Elementary_Type                  (Id : E) return B;
7212   function Is_Entry                            (Id : E) return B;
7213   function Is_Enumeration_Type                 (Id : E) return B;
7214   function Is_Fixed_Point_Type                 (Id : E) return B;
7215   function Is_Floating_Point_Type              (Id : E) return B;
7216   function Is_Formal                           (Id : E) return B;
7217   function Is_Formal_Object                    (Id : E) return B;
7218   function Is_Formal_Subprogram                (Id : E) return B;
7219   function Is_Generic_Actual_Subprogram        (Id : E) return B;
7220   function Is_Generic_Actual_Type              (Id : E) return B;
7221   function Is_Generic_Subprogram               (Id : E) return B;
7222   function Is_Generic_Type                     (Id : E) return B;
7223   function Is_Generic_Unit                     (Id : E) return B;
7224   function Is_Ghost_Entity                     (Id : E) return B;
7225   function Is_Incomplete_Or_Private_Type       (Id : E) return B;
7226   function Is_Incomplete_Type                  (Id : E) return B;
7227   function Is_Integer_Type                     (Id : E) return B;
7228   function Is_Limited_Record                   (Id : E) return B;
7229   function Is_Modular_Integer_Type             (Id : E) return B;
7230   function Is_Named_Number                     (Id : E) return B;
7231   function Is_Numeric_Type                     (Id : E) return B;
7232   function Is_Object                           (Id : E) return B;
7233   function Is_Ordinary_Fixed_Point_Type        (Id : E) return B;
7234   function Is_Overloadable                     (Id : E) return B;
7235   function Is_Private_Type                     (Id : E) return B;
7236   function Is_Protected_Type                   (Id : E) return B;
7237   function Is_Real_Type                        (Id : E) return B;
7238   function Is_Record_Type                      (Id : E) return B;
7239   function Is_Scalar_Type                      (Id : E) return B;
7240   function Is_Signed_Integer_Type              (Id : E) return B;
7241   function Is_Subprogram                       (Id : E) return B;
7242   function Is_Subprogram_Or_Generic_Subprogram (Id : E) return B;
7243   function Is_Task_Type                        (Id : E) return B;
7244   function Is_Type                             (Id : E) return B;
7245
7246   -------------------------------------
7247   -- Synthesized Attribute Functions --
7248   -------------------------------------
7249
7250   --  The functions in this section synthesize attributes from the tree,
7251   --  so they do not correspond to defined fields in the entity itself.
7252
7253   function Address_Clause                      (Id : E) return N;
7254   function Aft_Value                           (Id : E) return U;
7255   function Alignment_Clause                    (Id : E) return N;
7256   function Base_Type                           (Id : E) return E;
7257   function Declaration_Node                    (Id : E) return N;
7258   function Designated_Type                     (Id : E) return E;
7259   function First_Component                     (Id : E) return E;
7260   function First_Component_Or_Discriminant     (Id : E) return E;
7261   function First_Formal                        (Id : E) return E;
7262   function First_Formal_With_Extras            (Id : E) return E;
7263   function Has_Attach_Handler                  (Id : E) return B;
7264   function Has_Entries                         (Id : E) return B;
7265   function Has_Foreign_Convention              (Id : E) return B;
7266   function Has_Non_Limited_View                (Id : E) return B;
7267   function Has_Non_Null_Visible_Refinement     (Id : E) return B;
7268   function Has_Null_Abstract_State             (Id : E) return B;
7269   function Has_Null_Visible_Refinement         (Id : E) return B;
7270   function Implementation_Base_Type            (Id : E) return E;
7271   function Is_Base_Type                        (Id : E) return B;
7272   function Is_Boolean_Type                     (Id : E) return B;
7273   function Is_Constant_Object                  (Id : E) return B;
7274   function Is_Controlled_Active                (Id : E) return B;
7275   function Is_Discriminal                      (Id : E) return B;
7276   function Is_Dynamic_Scope                    (Id : E) return B;
7277   function Is_External_State                   (Id : E) return B;
7278   function Is_Finalizer                        (Id : E) return B;
7279   function Is_Null_State                       (Id : E) return B;
7280   function Is_Package_Or_Generic_Package       (Id : E) return B;
7281   function Is_Packed_Array                     (Id : E) return B;
7282   function Is_Prival                           (Id : E) return B;
7283   function Is_Protected_Component              (Id : E) return B;
7284   function Is_Protected_Interface              (Id : E) return B;
7285   function Is_Protected_Record_Type            (Id : E) return B;
7286   function Is_Standard_Character_Type          (Id : E) return B;
7287   function Is_Standard_String_Type             (Id : E) return B;
7288   function Is_String_Type                      (Id : E) return B;
7289   function Is_Synchronized_Interface           (Id : E) return B;
7290   function Is_Synchronized_State               (Id : E) return B;
7291   function Is_Task_Interface                   (Id : E) return B;
7292   function Is_Task_Record_Type                 (Id : E) return B;
7293   function Is_Wrapper_Package                  (Id : E) return B;
7294   function Last_Formal                         (Id : E) return E;
7295   function Machine_Emax_Value                  (Id : E) return U;
7296   function Machine_Emin_Value                  (Id : E) return U;
7297   function Machine_Mantissa_Value              (Id : E) return U;
7298   function Machine_Radix_Value                 (Id : E) return U;
7299   function Model_Emin_Value                    (Id : E) return U;
7300   function Model_Epsilon_Value                 (Id : E) return R;
7301   function Model_Mantissa_Value                (Id : E) return U;
7302   function Model_Small_Value                   (Id : E) return R;
7303   function Next_Component                      (Id : E) return E;
7304   function Next_Component_Or_Discriminant      (Id : E) return E;
7305   function Next_Discriminant                   (Id : E) return E;
7306   function Next_Formal                         (Id : E) return E;
7307   function Next_Formal_With_Extras             (Id : E) return E;
7308   function Next_Literal                        (Id : E) return E;
7309   function Next_Stored_Discriminant            (Id : E) return E;
7310   function Number_Dimensions                   (Id : E) return Pos;
7311   function Number_Entries                      (Id : E) return Nat;
7312   function Number_Formals                      (Id : E) return Pos;
7313   function Parameter_Mode                      (Id : E) return Formal_Kind;
7314   function Primitive_Operations                (Id : E) return L;
7315   function Root_Type                           (Id : E) return E;
7316   function Safe_Emax_Value                     (Id : E) return U;
7317   function Safe_First_Value                    (Id : E) return R;
7318   function Safe_Last_Value                     (Id : E) return R;
7319   function Scope_Depth_Set                     (Id : E) return B;
7320   function Size_Clause                         (Id : E) return N;
7321   function Stream_Size_Clause                  (Id : E) return N;
7322   function Type_High_Bound                     (Id : E) return N;
7323   function Type_Low_Bound                      (Id : E) return N;
7324   function Underlying_Type                     (Id : E) return E;
7325
7326   ----------------------------------------------
7327   -- Type Representation Attribute Predicates --
7328   ----------------------------------------------
7329
7330   --  These predicates test the setting of the indicated attribute. If the
7331   --  value has been set, then Known is True, and Unknown is False. If no
7332   --  value is set, then Known is False and Unknown is True. The Known_Static
7333   --  predicate is true only if the value is set (Known) and is set to a
7334   --  compile time known value. Note that in the case of Alignment and
7335   --  Normalized_First_Bit, dynamic values are not possible, so we do not
7336   --  need a separate Known_Static calls in these cases. The not set (unknown)
7337   --  values are as follows:
7338
7339   --    Alignment               Uint_0 or No_Uint
7340   --    Component_Size          Uint_0 or No_Uint
7341   --    Component_Bit_Offset    No_Uint
7342   --    Digits_Value            Uint_0 or No_Uint
7343   --    Esize                   Uint_0 or No_Uint
7344   --    Normalized_First_Bit    No_Uint
7345   --    Normalized_Position     No_Uint
7346   --    Normalized_Position_Max No_Uint
7347   --    RM_Size                 Uint_0 or No_Uint
7348
7349   --  It would be cleaner to use No_Uint in all these cases, but historically
7350   --  we chose to use Uint_0 at first, and the change over will take time ???
7351   --  This is particularly true for the RM_Size field, where a value of zero
7352   --  is legitimate. We deal with this by a considering that the value is
7353   --  always known static for discrete types (and no other types can have
7354   --  an RM_Size value of zero).
7355
7356   --  In two cases, Known_Static_Esize and Known_Static_RM_Size, there is one
7357   --  more consideration, which is that we always return False for generic
7358   --  types. Within a template, the size can look known, because of the fake
7359   --  size values we put in template types, but they are not really known and
7360   --  anyone testing if they are known within the template should get False as
7361   --  a result to prevent incorrect assumptions.
7362
7363   function Known_Alignment                       (E : Entity_Id) return B;
7364   function Known_Component_Bit_Offset            (E : Entity_Id) return B;
7365   function Known_Component_Size                  (E : Entity_Id) return B;
7366   function Known_Esize                           (E : Entity_Id) return B;
7367   function Known_Normalized_First_Bit            (E : Entity_Id) return B;
7368   function Known_Normalized_Position             (E : Entity_Id) return B;
7369   function Known_Normalized_Position_Max         (E : Entity_Id) return B;
7370   function Known_RM_Size                         (E : Entity_Id) return B;
7371
7372   function Known_Static_Component_Bit_Offset     (E : Entity_Id) return B;
7373   function Known_Static_Component_Size           (E : Entity_Id) return B;
7374   function Known_Static_Esize                    (E : Entity_Id) return B;
7375   function Known_Static_Normalized_First_Bit     (E : Entity_Id) return B;
7376   function Known_Static_Normalized_Position      (E : Entity_Id) return B;
7377   function Known_Static_Normalized_Position_Max  (E : Entity_Id) return B;
7378   function Known_Static_RM_Size                  (E : Entity_Id) return B;
7379
7380   function Unknown_Alignment                     (E : Entity_Id) return B;
7381   function Unknown_Component_Bit_Offset          (E : Entity_Id) return B;
7382   function Unknown_Component_Size                (E : Entity_Id) return B;
7383   function Unknown_Esize                         (E : Entity_Id) return B;
7384   function Unknown_Normalized_First_Bit          (E : Entity_Id) return B;
7385   function Unknown_Normalized_Position           (E : Entity_Id) return B;
7386   function Unknown_Normalized_Position_Max       (E : Entity_Id) return B;
7387   function Unknown_RM_Size                       (E : Entity_Id) return B;
7388
7389   ------------------------------
7390   -- Attribute Set Procedures --
7391   ------------------------------
7392
7393   procedure Set_Abstract_States                 (Id : E; V : L);
7394   procedure Set_Accept_Address                  (Id : E; V : L);
7395   procedure Set_Access_Disp_Table               (Id : E; V : L);
7396   procedure Set_Activation_Record_Component     (Id : E; V : E);
7397   procedure Set_Actual_Subtype                  (Id : E; V : E);
7398   procedure Set_Address_Taken                   (Id : E; V : B := True);
7399   procedure Set_Alias                           (Id : E; V : E);
7400   procedure Set_Alignment                       (Id : E; V : U);
7401   procedure Set_Anonymous_Master                (Id : E; V : E);
7402   procedure Set_Anonymous_Object                (Id : E; V : E);
7403   procedure Set_Associated_Entity               (Id : E; V : E);
7404   procedure Set_Associated_Formal_Package       (Id : E; V : E);
7405   procedure Set_Associated_Node_For_Itype       (Id : E; V : N);
7406   procedure Set_Associated_Storage_Pool         (Id : E; V : E);
7407   procedure Set_Barrier_Function                (Id : E; V : N);
7408   procedure Set_BIP_Initialization_Call         (Id : E; V : N);
7409   procedure Set_Block_Node                      (Id : E; V : N);
7410   procedure Set_Body_Entity                     (Id : E; V : E);
7411   procedure Set_Body_Needed_For_SAL             (Id : E; V : B := True);
7412   procedure Set_Body_References                 (Id : E; V : L);
7413   procedure Set_C_Pass_By_Copy                  (Id : E; V : B := True);
7414   procedure Set_Can_Never_Be_Null               (Id : E; V : B := True);
7415   procedure Set_Can_Use_Internal_Rep            (Id : E; V : B := True);
7416   procedure Set_Checks_May_Be_Suppressed        (Id : E; V : B := True);
7417   procedure Set_Class_Wide_Postconds            (Id : E; V : S);
7418   procedure Set_Class_Wide_Preconds             (Id : E; V : S);
7419   procedure Set_Class_Wide_Type                 (Id : E; V : E);
7420   procedure Set_Cloned_Subtype                  (Id : E; V : E);
7421   procedure Set_Component_Alignment             (Id : E; V : C);
7422   procedure Set_Component_Bit_Offset            (Id : E; V : U);
7423   procedure Set_Component_Clause                (Id : E; V : N);
7424   procedure Set_Component_Size                  (Id : E; V : U);
7425   procedure Set_Component_Type                  (Id : E; V : E);
7426   procedure Set_Contains_Ignored_Ghost_Code     (Id : E; V : B := True);
7427   procedure Set_Contract                        (Id : E; V : N);
7428   procedure Set_Contract_Wrapper                (Id : E; V : E);
7429   procedure Set_Corresponding_Concurrent_Type   (Id : E; V : E);
7430   procedure Set_Corresponding_Discriminant      (Id : E; V : E);
7431   procedure Set_Corresponding_Equality          (Id : E; V : E);
7432   procedure Set_Corresponding_Protected_Entry   (Id : E; V : E);
7433   procedure Set_Corresponding_Record_Type       (Id : E; V : E);
7434   procedure Set_Corresponding_Remote_Type       (Id : E; V : E);
7435   procedure Set_CR_Discriminant                 (Id : E; V : E);
7436   procedure Set_Current_Use_Clause              (Id : E; V : E);
7437   procedure Set_Current_Value                   (Id : E; V : N);
7438   procedure Set_Debug_Info_Off                  (Id : E; V : B := True);
7439   procedure Set_Debug_Renaming_Link             (Id : E; V : E);
7440   procedure Set_Default_Aspect_Component_Value  (Id : E; V : N);
7441   procedure Set_Default_Aspect_Value            (Id : E; V : N);
7442   procedure Set_Default_Expr_Function           (Id : E; V : E);
7443   procedure Set_Default_Expressions_Processed   (Id : E; V : B := True);
7444   procedure Set_Default_Value                   (Id : E; V : N);
7445   procedure Set_Delay_Cleanups                  (Id : E; V : B := True);
7446   procedure Set_Delay_Subprogram_Descriptors    (Id : E; V : B := True);
7447   procedure Set_Delta_Value                     (Id : E; V : R);
7448   procedure Set_Dependent_Instances             (Id : E; V : L);
7449   procedure Set_Depends_On_Private              (Id : E; V : B := True);
7450   procedure Set_Derived_Type_Link               (Id : E; V : E);
7451   procedure Set_Digits_Value                    (Id : E; V : U);
7452   procedure Set_Direct_Primitive_Operations     (Id : E; V : L);
7453   procedure Set_Directly_Designated_Type        (Id : E; V : E);
7454   procedure Set_Disable_Controlled              (Id : E; V : B := True);
7455   procedure Set_Discard_Names                   (Id : E; V : B := True);
7456   procedure Set_Discriminal                     (Id : E; V : E);
7457   procedure Set_Discriminal_Link                (Id : E; V : E);
7458   procedure Set_Discriminant_Checking_Func      (Id : E; V : E);
7459   procedure Set_Discriminant_Constraint         (Id : E; V : L);
7460   procedure Set_Discriminant_Default_Value      (Id : E; V : N);
7461   procedure Set_Discriminant_Number             (Id : E; V : U);
7462   procedure Set_Dispatch_Table_Wrappers         (Id : E; V : L);
7463   procedure Set_DT_Entry_Count                  (Id : E; V : U);
7464   procedure Set_DT_Offset_To_Top_Func           (Id : E; V : E);
7465   procedure Set_DT_Position                     (Id : E; V : U);
7466   procedure Set_DTC_Entity                      (Id : E; V : E);
7467   procedure Set_Elaborate_Body_Desirable        (Id : E; V : B := True);
7468   procedure Set_Elaboration_Entity              (Id : E; V : E);
7469   procedure Set_Elaboration_Entity_Required     (Id : E; V : B := True);
7470   procedure Set_Encapsulating_State             (Id : E; V : E);
7471   procedure Set_Enclosing_Scope                 (Id : E; V : E);
7472   procedure Set_Entry_Accepted                  (Id : E; V : B := True);
7473   procedure Set_Entry_Bodies_Array              (Id : E; V : E);
7474   procedure Set_Entry_Cancel_Parameter          (Id : E; V : E);
7475   procedure Set_Entry_Component                 (Id : E; V : E);
7476   procedure Set_Entry_Formal                    (Id : E; V : E);
7477   procedure Set_Entry_Index_Constant            (Id : E; V : E);
7478   procedure Set_Entry_Parameters_Type           (Id : E; V : E);
7479   procedure Set_Enum_Pos_To_Rep                 (Id : E; V : E);
7480   procedure Set_Enumeration_Pos                 (Id : E; V : U);
7481   procedure Set_Enumeration_Rep                 (Id : E; V : U);
7482   procedure Set_Enumeration_Rep_Expr            (Id : E; V : N);
7483   procedure Set_Equivalent_Type                 (Id : E; V : E);
7484   procedure Set_Esize                           (Id : E; V : U);
7485   procedure Set_Extra_Accessibility             (Id : E; V : E);
7486   procedure Set_Extra_Accessibility_Of_Result   (Id : E; V : E);
7487   procedure Set_Extra_Constrained               (Id : E; V : E);
7488   procedure Set_Extra_Formal                    (Id : E; V : E);
7489   procedure Set_Extra_Formals                   (Id : E; V : E);
7490   procedure Set_Finalization_Master             (Id : E; V : E);
7491   procedure Set_Finalize_Storage_Only           (Id : E; V : B := True);
7492   procedure Set_Finalizer                       (Id : E; V : E);
7493   procedure Set_First_Entity                    (Id : E; V : E);
7494   procedure Set_First_Exit_Statement            (Id : E; V : N);
7495   procedure Set_First_Index                     (Id : E; V : N);
7496   procedure Set_First_Literal                   (Id : E; V : E);
7497   procedure Set_First_Private_Entity            (Id : E; V : E);
7498   procedure Set_First_Rep_Item                  (Id : E; V : N);
7499   procedure Set_Float_Rep                       (Id : E; V : F);
7500   procedure Set_Freeze_Node                     (Id : E; V : N);
7501   procedure Set_From_Limited_With               (Id : E; V : B := True);
7502   procedure Set_Full_View                       (Id : E; V : E);
7503   procedure Set_Generic_Homonym                 (Id : E; V : E);
7504   procedure Set_Generic_Renamings               (Id : E; V : L);
7505   procedure Set_Handler_Records                 (Id : E; V : S);
7506   procedure Set_Has_Aliased_Components          (Id : E; V : B := True);
7507   procedure Set_Has_Alignment_Clause            (Id : E; V : B := True);
7508   procedure Set_Has_All_Calls_Remote            (Id : E; V : B := True);
7509   procedure Set_Has_Atomic_Components           (Id : E; V : B := True);
7510   procedure Set_Has_Biased_Representation       (Id : E; V : B := True);
7511   procedure Set_Has_Completion                  (Id : E; V : B := True);
7512   procedure Set_Has_Completion_In_Body          (Id : E; V : B := True);
7513   procedure Set_Has_Complex_Representation      (Id : E; V : B := True);
7514   procedure Set_Has_Component_Size_Clause       (Id : E; V : B := True);
7515   procedure Set_Has_Constrained_Partial_View    (Id : E; V : B := True);
7516   procedure Set_Has_Contiguous_Rep              (Id : E; V : B := True);
7517   procedure Set_Has_Controlled_Component        (Id : E; V : B := True);
7518   procedure Set_Has_Controlling_Result          (Id : E; V : B := True);
7519   procedure Set_Has_Convention_Pragma           (Id : E; V : B := True);
7520   procedure Set_Has_Default_Aspect              (Id : E; V : B := True);
7521   procedure Set_Has_Default_Init_Cond           (Id : E; V : B := True);
7522   procedure Set_Has_Delayed_Aspects             (Id : E; V : B := True);
7523   procedure Set_Has_Delayed_Freeze              (Id : E; V : B := True);
7524   procedure Set_Has_Delayed_Rep_Aspects         (Id : E; V : B := True);
7525   procedure Set_Has_Discriminants               (Id : E; V : B := True);
7526   procedure Set_Has_Dispatch_Table              (Id : E; V : B := True);
7527   procedure Set_Has_Dynamic_Predicate_Aspect    (Id : E; V : B := True);
7528   procedure Set_Has_Enumeration_Rep_Clause      (Id : E; V : B := True);
7529   procedure Set_Has_Exit                        (Id : E; V : B := True);
7530   procedure Set_Has_Expanded_Contract           (Id : E; V : B := True);
7531   procedure Set_Has_Forward_Instantiation       (Id : E; V : B := True);
7532   procedure Set_Has_Fully_Qualified_Name        (Id : E; V : B := True);
7533   procedure Set_Has_Gigi_Rep_Item               (Id : E; V : B := True);
7534   procedure Set_Has_Homonym                     (Id : E; V : B := True);
7535   procedure Set_Has_Implicit_Dereference        (Id : E; V : B := True);
7536   procedure Set_Has_Independent_Components      (Id : E; V : B := True);
7537   procedure Set_Has_Inheritable_Invariants      (Id : E; V : B := True);
7538   procedure Set_Has_Inherited_Default_Init_Cond (Id : E; V : B := True);
7539   procedure Set_Has_Initial_Value               (Id : E; V : B := True);
7540   procedure Set_Has_Invariants                  (Id : E; V : B := True);
7541   procedure Set_Has_Loop_Entry_Attributes       (Id : E; V : B := True);
7542   procedure Set_Has_Machine_Radix_Clause        (Id : E; V : B := True);
7543   procedure Set_Has_Master_Entity               (Id : E; V : B := True);
7544   procedure Set_Has_Missing_Return              (Id : E; V : B := True);
7545   procedure Set_Has_Nested_Block_With_Handler   (Id : E; V : B := True);
7546   procedure Set_Has_Nested_Subprogram           (Id : E; V : B := True);
7547   procedure Set_Has_Non_Standard_Rep            (Id : E; V : B := True);
7548   procedure Set_Has_Object_Size_Clause          (Id : E; V : B := True);
7549   procedure Set_Has_Out_Or_In_Out_Parameter     (Id : E; V : B := True);
7550   procedure Set_Has_Per_Object_Constraint       (Id : E; V : B := True);
7551   procedure Set_Has_Pragma_Controlled           (Id : E; V : B := True);
7552   procedure Set_Has_Pragma_Elaborate_Body       (Id : E; V : B := True);
7553   procedure Set_Has_Pragma_Inline               (Id : E; V : B := True);
7554   procedure Set_Has_Pragma_Inline_Always        (Id : E; V : B := True);
7555   procedure Set_Has_Pragma_No_Inline            (Id : E; V : B := True);
7556   procedure Set_Has_Pragma_Ordered              (Id : E; V : B := True);
7557   procedure Set_Has_Pragma_Pack                 (Id : E; V : B := True);
7558   procedure Set_Has_Pragma_Preelab_Init         (Id : E; V : B := True);
7559   procedure Set_Has_Pragma_Pure                 (Id : E; V : B := True);
7560   procedure Set_Has_Pragma_Pure_Function        (Id : E; V : B := True);
7561   procedure Set_Has_Pragma_Thread_Local_Storage (Id : E; V : B := True);
7562   procedure Set_Has_Pragma_Unmodified           (Id : E; V : B := True);
7563   procedure Set_Has_Pragma_Unreferenced         (Id : E; V : B := True);
7564   procedure Set_Has_Pragma_Unreferenced_Objects (Id : E; V : B := True);
7565   procedure Set_Has_Predicates                  (Id : E; V : B := True);
7566   procedure Set_Has_Primitive_Operations        (Id : E; V : B := True);
7567   procedure Set_Has_Private_Ancestor            (Id : E; V : B := True);
7568   procedure Set_Has_Private_Declaration         (Id : E; V : B := True);
7569   procedure Set_Has_Protected                   (Id : E; V : B := True);
7570   procedure Set_Has_Qualified_Name              (Id : E; V : B := True);
7571   procedure Set_Has_RACW                        (Id : E; V : B := True);
7572   procedure Set_Has_Record_Rep_Clause           (Id : E; V : B := True);
7573   procedure Set_Has_Recursive_Call              (Id : E; V : B := True);
7574   procedure Set_Has_Shift_Operator              (Id : E; V : B := True);
7575   procedure Set_Has_Size_Clause                 (Id : E; V : B := True);
7576   procedure Set_Has_Small_Clause                (Id : E; V : B := True);
7577   procedure Set_Has_Specified_Layout            (Id : E; V : B := True);
7578   procedure Set_Has_Specified_Stream_Input      (Id : E; V : B := True);
7579   procedure Set_Has_Specified_Stream_Output     (Id : E; V : B := True);
7580   procedure Set_Has_Specified_Stream_Read       (Id : E; V : B := True);
7581   procedure Set_Has_Specified_Stream_Write      (Id : E; V : B := True);
7582   procedure Set_Has_Static_Discriminants        (Id : E; V : B := True);
7583   procedure Set_Has_Static_Predicate            (Id : E; V : B := True);
7584   procedure Set_Has_Static_Predicate_Aspect     (Id : E; V : B := True);
7585   procedure Set_Has_Storage_Size_Clause         (Id : E; V : B := True);
7586   procedure Set_Has_Stream_Size_Clause          (Id : E; V : B := True);
7587   procedure Set_Has_Task                        (Id : E; V : B := True);
7588   procedure Set_Has_Thunks                      (Id : E; V : B := True);
7589   procedure Set_Has_Unchecked_Union             (Id : E; V : B := True);
7590   procedure Set_Has_Unknown_Discriminants       (Id : E; V : B := True);
7591   procedure Set_Has_Visible_Refinement          (Id : E; V : B := True);
7592   procedure Set_Has_Volatile_Components         (Id : E; V : B := True);
7593   procedure Set_Has_Xref_Entry                  (Id : E; V : B := True);
7594   procedure Set_Hiding_Loop_Variable            (Id : E; V : E);
7595   procedure Set_Homonym                         (Id : E; V : E);
7596   procedure Set_Import_Pragma                   (Id : E; V : E);
7597   procedure Set_Incomplete_Actuals              (Id : E; V : L);
7598   procedure Set_In_Package_Body                 (Id : E; V : B := True);
7599   procedure Set_In_Private_Part                 (Id : E; V : B := True);
7600   procedure Set_In_Use                          (Id : E; V : B := True);
7601   procedure Set_Initialization_Statements       (Id : E; V : N);
7602   procedure Set_Inner_Instances                 (Id : E; V : L);
7603   procedure Set_Interface_Alias                 (Id : E; V : E);
7604   procedure Set_Interface_Name                  (Id : E; V : N);
7605   procedure Set_Interfaces                      (Id : E; V : L);
7606   procedure Set_Is_Abstract_Subprogram          (Id : E; V : B := True);
7607   procedure Set_Is_Abstract_Type                (Id : E; V : B := True);
7608   procedure Set_Is_Access_Constant              (Id : E; V : B := True);
7609   procedure Set_Is_Ada_2005_Only                (Id : E; V : B := True);
7610   procedure Set_Is_Ada_2012_Only                (Id : E; V : B := True);
7611   procedure Set_Is_Aliased                      (Id : E; V : B := True);
7612   procedure Set_Is_Asynchronous                 (Id : E; V : B := True);
7613   procedure Set_Is_Atomic                       (Id : E; V : B := True);
7614   procedure Set_Is_Bit_Packed_Array             (Id : E; V : B := True);
7615   procedure Set_Is_Called                       (Id : E; V : B := True);
7616   procedure Set_Is_Character_Type               (Id : E; V : B := True);
7617   procedure Set_Is_Checked_Ghost_Entity         (Id : E; V : B := True);
7618   procedure Set_Is_Child_Unit                   (Id : E; V : B := True);
7619   procedure Set_Is_Class_Wide_Equivalent_Type   (Id : E; V : B := True);
7620   procedure Set_Is_Compilation_Unit             (Id : E; V : B := True);
7621   procedure Set_Is_Completely_Hidden            (Id : E; V : B := True);
7622   procedure Set_Is_Concurrent_Record_Type       (Id : E; V : B := True);
7623   procedure Set_Is_Constr_Subt_For_U_Nominal    (Id : E; V : B := True);
7624   procedure Set_Is_Constr_Subt_For_UN_Aliased   (Id : E; V : B := True);
7625   procedure Set_Is_Constrained                  (Id : E; V : B := True);
7626   procedure Set_Is_Constructor                  (Id : E; V : B := True);
7627   procedure Set_Is_Controlled                   (Id : E; V : B := True);
7628   procedure Set_Is_Controlling_Formal           (Id : E; V : B := True);
7629   procedure Set_Is_CPP_Class                    (Id : E; V : B := True);
7630   procedure Set_Is_Default_Init_Cond_Procedure  (Id : E; V : B := True);
7631   procedure Set_Is_Descendent_Of_Address        (Id : E; V : B := True);
7632   procedure Set_Is_Discrim_SO_Function          (Id : E; V : B := True);
7633   procedure Set_Is_Discriminant_Check_Function  (Id : E; V : B := True);
7634   procedure Set_Is_Dispatch_Table_Entity        (Id : E; V : B := True);
7635   procedure Set_Is_Dispatching_Operation        (Id : E; V : B := True);
7636   procedure Set_Is_Eliminated                   (Id : E; V : B := True);
7637   procedure Set_Is_Entry_Formal                 (Id : E; V : B := True);
7638   procedure Set_Is_Exported                     (Id : E; V : B := True);
7639   procedure Set_Is_First_Subtype                (Id : E; V : B := True);
7640   procedure Set_Is_For_Access_Subtype           (Id : E; V : B := True);
7641   procedure Set_Is_Formal_Subprogram            (Id : E; V : B := True);
7642   procedure Set_Is_Frozen                       (Id : E; V : B := True);
7643   procedure Set_Is_Generic_Actual_Subprogram    (Id : E; V : B := True);
7644   procedure Set_Is_Generic_Actual_Type          (Id : E; V : B := True);
7645   procedure Set_Is_Generic_Instance             (Id : E; V : B := True);
7646   procedure Set_Is_Generic_Type                 (Id : E; V : B := True);
7647   procedure Set_Is_Hidden                       (Id : E; V : B := True);
7648   procedure Set_Is_Hidden_Non_Overridden_Subpgm (Id : E; V : B := True);
7649   procedure Set_Is_Hidden_Open_Scope            (Id : E; V : B := True);
7650   procedure Set_Is_Ignored_Ghost_Entity         (Id : E; V : B := True);
7651   procedure Set_Is_Immediately_Visible          (Id : E; V : B := True);
7652   procedure Set_Is_Implementation_Defined       (Id : E; V : B := True);
7653   procedure Set_Is_Imported                     (Id : E; V : B := True);
7654   procedure Set_Is_Independent                  (Id : E; V : B := True);
7655   procedure Set_Is_Inlined                      (Id : E; V : B := True);
7656   procedure Set_Is_Inlined_Always               (Id : E; V : B := True);
7657   procedure Set_Is_Instantiated                 (Id : E; V : B := True);
7658   procedure Set_Is_Interface                    (Id : E; V : B := True);
7659   procedure Set_Is_Internal                     (Id : E; V : B := True);
7660   procedure Set_Is_Interrupt_Handler            (Id : E; V : B := True);
7661   procedure Set_Is_Intrinsic_Subprogram         (Id : E; V : B := True);
7662   procedure Set_Is_Invariant_Procedure          (Id : E; V : B := True);
7663   procedure Set_Is_Itype                        (Id : E; V : B := True);
7664   procedure Set_Is_Known_Non_Null               (Id : E; V : B := True);
7665   procedure Set_Is_Known_Null                   (Id : E; V : B := True);
7666   procedure Set_Is_Known_Valid                  (Id : E; V : B := True);
7667   procedure Set_Is_Limited_Composite            (Id : E; V : B := True);
7668   procedure Set_Is_Limited_Interface            (Id : E; V : B := True);
7669   procedure Set_Is_Limited_Record               (Id : E; V : B := True);
7670   procedure Set_Is_Local_Anonymous_Access       (Id : E; V : B := True);
7671   procedure Set_Is_Machine_Code_Subprogram      (Id : E; V : B := True);
7672   procedure Set_Is_Non_Static_Subtype           (Id : E; V : B := True);
7673   procedure Set_Is_Null_Init_Proc               (Id : E; V : B := True);
7674   procedure Set_Is_Obsolescent                  (Id : E; V : B := True);
7675   procedure Set_Is_Only_Out_Parameter           (Id : E; V : B := True);
7676   procedure Set_Is_Package_Body_Entity          (Id : E; V : B := True);
7677   procedure Set_Is_Packed                       (Id : E; V : B := True);
7678   procedure Set_Is_Packed_Array_Impl_Type       (Id : E; V : B := True);
7679   procedure Set_Is_Param_Block_Component_Type   (Id : E; V : B := True);
7680   procedure Set_Is_Potentially_Use_Visible      (Id : E; V : B := True);
7681   procedure Set_Is_Predicate_Function           (Id : E; V : B := True);
7682   procedure Set_Is_Predicate_Function_M         (Id : E; V : B := True);
7683   procedure Set_Is_Preelaborated                (Id : E; V : B := True);
7684   procedure Set_Is_Primitive                    (Id : E; V : B := True);
7685   procedure Set_Is_Primitive_Wrapper            (Id : E; V : B := True);
7686   procedure Set_Is_Private_Composite            (Id : E; V : B := True);
7687   procedure Set_Is_Private_Descendant           (Id : E; V : B := True);
7688   procedure Set_Is_Private_Primitive            (Id : E; V : B := True);
7689   procedure Set_Is_Processed_Transient          (Id : E; V : B := True);
7690   procedure Set_Is_Public                       (Id : E; V : B := True);
7691   procedure Set_Is_Pure                         (Id : E; V : B := True);
7692   procedure Set_Is_Pure_Unit_Access_Type        (Id : E; V : B := True);
7693   procedure Set_Is_RACW_Stub_Type               (Id : E; V : B := True);
7694   procedure Set_Is_Raised                       (Id : E; V : B := True);
7695   procedure Set_Is_Remote_Call_Interface        (Id : E; V : B := True);
7696   procedure Set_Is_Remote_Types                 (Id : E; V : B := True);
7697   procedure Set_Is_Renaming_Of_Object           (Id : E; V : B := True);
7698   procedure Set_Is_Return_Object                (Id : E; V : B := True);
7699   procedure Set_Is_Safe_To_Reevaluate           (Id : E; V : B := True);
7700   procedure Set_Is_Shared_Passive               (Id : E; V : B := True);
7701   procedure Set_Is_Static_Type                  (Id : E; V : B := True);
7702   procedure Set_Is_Statically_Allocated         (Id : E; V : B := True);
7703   procedure Set_Is_Tag                          (Id : E; V : B := True);
7704   procedure Set_Is_Tagged_Type                  (Id : E; V : B := True);
7705   procedure Set_Is_Thunk                        (Id : E; V : B := True);
7706   procedure Set_Is_Trivial_Subprogram           (Id : E; V : B := True);
7707   procedure Set_Is_True_Constant                (Id : E; V : B := True);
7708   procedure Set_Is_Unchecked_Union              (Id : E; V : B := True);
7709   procedure Set_Is_Underlying_Record_View       (Id : E; V : B := True);
7710   procedure Set_Is_Unimplemented                (Id : E; V : B := True);
7711   procedure Set_Is_Unsigned_Type                (Id : E; V : B := True);
7712   procedure Set_Is_Uplevel_Referenced_Entity    (Id : E; V : B := True);
7713   procedure Set_Is_Valued_Procedure             (Id : E; V : B := True);
7714   procedure Set_Is_Visible_Formal               (Id : E; V : B := True);
7715   procedure Set_Is_Visible_Lib_Unit             (Id : E; V : B := True);
7716   procedure Set_Is_Volatile                     (Id : E; V : B := True);
7717   procedure Set_Is_Volatile_Full_Access         (Id : E; V : B := True);
7718   procedure Set_Itype_Printed                   (Id : E; V : B := True);
7719   procedure Set_Kill_Elaboration_Checks         (Id : E; V : B := True);
7720   procedure Set_Kill_Range_Checks               (Id : E; V : B := True);
7721   procedure Set_Known_To_Have_Preelab_Init      (Id : E; V : B := True);
7722   procedure Set_Last_Aggregate_Assignment       (Id : E; V : N);
7723   procedure Set_Last_Assignment                 (Id : E; V : N);
7724   procedure Set_Last_Entity                     (Id : E; V : E);
7725   procedure Set_Limited_View                    (Id : E; V : E);
7726   procedure Set_Linker_Section_Pragma           (Id : E; V : N);
7727   procedure Set_Lit_Indexes                     (Id : E; V : E);
7728   procedure Set_Lit_Strings                     (Id : E; V : E);
7729   procedure Set_Low_Bound_Tested                (Id : E; V : B := True);
7730   procedure Set_Machine_Radix_10                (Id : E; V : B := True);
7731   procedure Set_Master_Id                       (Id : E; V : E);
7732   procedure Set_Materialize_Entity              (Id : E; V : B := True);
7733   procedure Set_May_Inherit_Delayed_Rep_Aspects (Id : E; V : B := True);
7734   procedure Set_Mechanism                       (Id : E; V : M);
7735   procedure Set_Modulus                         (Id : E; V : U);
7736   procedure Set_Must_Be_On_Byte_Boundary        (Id : E; V : B := True);
7737   procedure Set_Must_Have_Preelab_Init          (Id : E; V : B := True);
7738   procedure Set_Needs_Debug_Info                (Id : E; V : B := True);
7739   procedure Set_Needs_No_Actuals                (Id : E; V : B := True);
7740   procedure Set_Never_Set_In_Source             (Id : E; V : B := True);
7741   procedure Set_Next_Inlined_Subprogram         (Id : E; V : E);
7742   procedure Set_No_Dynamic_Predicate_On_Actual  (Id : E; V : B := True);
7743   procedure Set_No_Pool_Assigned                (Id : E; V : B := True);
7744   procedure Set_No_Predicate_On_Actual          (Id : E; V : B := True);
7745   procedure Set_No_Return                       (Id : E; V : B := True);
7746   procedure Set_No_Strict_Aliasing              (Id : E; V : B := True);
7747   procedure Set_No_Tagged_Streams_Pragma        (Id : E; V : N);
7748   procedure Set_Non_Binary_Modulus              (Id : E; V : B := True);
7749   procedure Set_Non_Limited_View                (Id : E; V : E);
7750   procedure Set_Nonzero_Is_True                 (Id : E; V : B := True);
7751   procedure Set_Normalized_First_Bit            (Id : E; V : U);
7752   procedure Set_Normalized_Position             (Id : E; V : U);
7753   procedure Set_Normalized_Position_Max         (Id : E; V : U);
7754   procedure Set_OK_To_Rename                    (Id : E; V : B := True);
7755   procedure Set_OK_To_Reorder_Components        (Id : E; V : B := True);
7756   procedure Set_Optimize_Alignment_Space        (Id : E; V : B := True);
7757   procedure Set_Optimize_Alignment_Time         (Id : E; V : B := True);
7758   procedure Set_Original_Access_Type            (Id : E; V : E);
7759   procedure Set_Original_Array_Type             (Id : E; V : E);
7760   procedure Set_Original_Record_Component       (Id : E; V : E);
7761   procedure Set_Overlays_Constant               (Id : E; V : B := True);
7762   procedure Set_Overridden_Operation            (Id : E; V : E);
7763   procedure Set_Package_Instantiation           (Id : E; V : N);
7764   procedure Set_Packed_Array_Impl_Type          (Id : E; V : E);
7765   procedure Set_Parent_Subtype                  (Id : E; V : E);
7766   procedure Set_Part_Of_Constituents            (Id : E; V : L);
7767   procedure Set_Part_Of_References              (Id : E; V : L);
7768   procedure Set_Partial_View_Has_Unknown_Discr  (Id : E; V : B := True);
7769   procedure Set_Pending_Access_Types            (Id : E; V : L);
7770   procedure Set_Postconditions_Proc             (Id : E; V : E);
7771   procedure Set_Prival                          (Id : E; V : E);
7772   procedure Set_Prival_Link                     (Id : E; V : E);
7773   procedure Set_Private_Dependents              (Id : E; V : L);
7774   procedure Set_Private_View                    (Id : E; V : N);
7775   procedure Set_Protected_Body_Subprogram       (Id : E; V : E);
7776   procedure Set_Protected_Formal                (Id : E; V : E);
7777   procedure Set_Protection_Object               (Id : E; V : E);
7778   procedure Set_Reachable                       (Id : E; V : B := True);
7779   procedure Set_Referenced                      (Id : E; V : B := True);
7780   procedure Set_Referenced_As_LHS               (Id : E; V : B := True);
7781   procedure Set_Referenced_As_Out_Parameter     (Id : E; V : B := True);
7782   procedure Set_Refinement_Constituents         (Id : E; V : L);
7783   procedure Set_Register_Exception_Call         (Id : E; V : N);
7784   procedure Set_Related_Array_Object            (Id : E; V : E);
7785   procedure Set_Related_Expression              (Id : E; V : N);
7786   procedure Set_Related_Instance                (Id : E; V : E);
7787   procedure Set_Related_Type                    (Id : E; V : E);
7788   procedure Set_Relative_Deadline_Variable      (Id : E; V : E);
7789   procedure Set_Renamed_Entity                  (Id : E; V : N);
7790   procedure Set_Renamed_In_Spec                 (Id : E; V : B := True);
7791   procedure Set_Renamed_Object                  (Id : E; V : N);
7792   procedure Set_Renaming_Map                    (Id : E; V : U);
7793   procedure Set_Requires_Overriding             (Id : E; V : B := True);
7794   procedure Set_Return_Applies_To               (Id : E; V : N);
7795   procedure Set_Return_Present                  (Id : E; V : B := True);
7796   procedure Set_Returns_By_Ref                  (Id : E; V : B := True);
7797   procedure Set_Returns_Limited_View            (Id : E; V : B := True);
7798   procedure Set_Reverse_Bit_Order               (Id : E; V : B := True);
7799   procedure Set_Reverse_Storage_Order           (Id : E; V : B := True);
7800   procedure Set_Rewritten_For_C                 (Id : E; V : B := True);
7801   procedure Set_RM_Size                         (Id : E; V : U);
7802   procedure Set_Scalar_Range                    (Id : E; V : N);
7803   procedure Set_Scale_Value                     (Id : E; V : U);
7804   procedure Set_Scope_Depth_Value               (Id : E; V : U);
7805   procedure Set_Sec_Stack_Needed_For_Return     (Id : E; V : B := True);
7806   procedure Set_Shadow_Entities                 (Id : E; V : S);
7807   procedure Set_Shared_Var_Procs_Instance       (Id : E; V : E);
7808   procedure Set_Size_Check_Code                 (Id : E; V : N);
7809   procedure Set_Size_Depends_On_Discriminant    (Id : E; V : B := True);
7810   procedure Set_Size_Known_At_Compile_Time      (Id : E; V : B := True);
7811   procedure Set_Small_Value                     (Id : E; V : R);
7812   procedure Set_SPARK_Aux_Pragma                (Id : E; V : N);
7813   procedure Set_SPARK_Aux_Pragma_Inherited      (Id : E; V : B := True);
7814   procedure Set_SPARK_Pragma                    (Id : E; V : N);
7815   procedure Set_SPARK_Pragma_Inherited          (Id : E; V : B := True);
7816   procedure Set_Spec_Entity                     (Id : E; V : E);
7817   procedure Set_SSO_Set_High_By_Default         (Id : E; V : B := True);
7818   procedure Set_SSO_Set_Low_By_Default          (Id : E; V : B := True);
7819   procedure Set_Static_Discrete_Predicate       (Id : E; V : S);
7820   procedure Set_Static_Elaboration_Desired      (Id : E; V : B);
7821   procedure Set_Static_Initialization           (Id : E; V : N);
7822   procedure Set_Static_Real_Or_String_Predicate (Id : E; V : N);
7823   procedure Set_Status_Flag_Or_Transient_Decl   (Id : E; V : E);
7824   procedure Set_Storage_Size_Variable           (Id : E; V : E);
7825   procedure Set_Stored_Constraint               (Id : E; V : L);
7826   procedure Set_Stores_Attribute_Old_Prefix     (Id : E; V : B := True);
7827   procedure Set_Strict_Alignment                (Id : E; V : B := True);
7828   procedure Set_String_Literal_Length           (Id : E; V : U);
7829   procedure Set_String_Literal_Low_Bound        (Id : E; V : N);
7830   procedure Set_Subprograms_For_Type            (Id : E; V : E);
7831   procedure Set_Subps_Index                     (Id : E; V : U);
7832   procedure Set_Suppress_Elaboration_Warnings   (Id : E; V : B := True);
7833   procedure Set_Suppress_Initialization         (Id : E; V : B := True);
7834   procedure Set_Suppress_Style_Checks           (Id : E; V : B := True);
7835   procedure Set_Suppress_Value_Tracking_On_Call (Id : E; V : B := True);
7836   procedure Set_Task_Body_Procedure             (Id : E; V : N);
7837   procedure Set_Thunk_Entity                    (Id : E; V : E);
7838   procedure Set_Treat_As_Volatile               (Id : E; V : B := True);
7839   procedure Set_Underlying_Full_View            (Id : E; V : E);
7840   procedure Set_Underlying_Record_View          (Id : E; V : E);
7841   procedure Set_Universal_Aliasing              (Id : E; V : B := True);
7842   procedure Set_Unset_Reference                 (Id : E; V : N);
7843   procedure Set_Used_As_Generic_Actual          (Id : E; V : B := True);
7844   procedure Set_Uses_Lock_Free                  (Id : E; V : B := True);
7845   procedure Set_Uses_Sec_Stack                  (Id : E; V : B := True);
7846   procedure Set_Warnings_Off                    (Id : E; V : B := True);
7847   procedure Set_Warnings_Off_Used               (Id : E; V : B := True);
7848   procedure Set_Warnings_Off_Used_Unmodified    (Id : E; V : B := True);
7849   procedure Set_Warnings_Off_Used_Unreferenced  (Id : E; V : B := True);
7850   procedure Set_Was_Hidden                      (Id : E; V : B := True);
7851   procedure Set_Wrapped_Entity                  (Id : E; V : E);
7852
7853   ---------------------------------------------------
7854   -- Access to Subprograms in Subprograms_For_Type --
7855   ---------------------------------------------------
7856
7857   function Default_Init_Cond_Procedure         (Id : E) return E;
7858   function Invariant_Procedure                 (Id : E) return E;
7859   function Predicate_Function                  (Id : E) return E;
7860   function Predicate_Function_M                (Id : E) return E;
7861
7862   procedure Set_Default_Init_Cond_Procedure    (Id : E; V : E);
7863   procedure Set_Invariant_Procedure            (Id : E; V : E);
7864   procedure Set_Predicate_Function             (Id : E; V : E);
7865   procedure Set_Predicate_Function_M           (Id : E; V : E);
7866
7867   -----------------------------------
7868   -- Field Initialization Routines --
7869   -----------------------------------
7870
7871   --  These routines are overloadings of some of the above Set procedures
7872   --  where the argument is normally a Uint. The overloadings take an Int
7873   --  parameter instead, and appropriately convert it. There are also
7874   --  versions that implicitly initialize to the appropriate "not set"
7875   --  value. The not set (unknown) values are as follows:
7876
7877   --    Alignment                 Uint_0
7878   --    Component_Size            Uint_0
7879   --    Component_Bit_Offset      No_Uint
7880   --    Digits_Value              Uint_0
7881   --    Esize                     Uint_0
7882   --    Normalized_First_Bit      No_Uint
7883   --    Normalized_Position       No_Uint
7884   --    Normalized_Position_Max   No_Uint
7885   --    RM_Size                   Uint_0
7886
7887   --  It would be cleaner to use No_Uint in all these cases, but historically
7888   --  we chose to use Uint_0 at first, and the change over will take time ???
7889   --  This is particularly true for the RM_Size field, where a value of zero
7890   --  is legitimate and causes some special tests around the code.
7891
7892   --  Contrary to the corresponding Set procedures above, these routines
7893   --  do NOT check the entity kind of their argument, instead they set the
7894   --  underlying Uint fields directly (this allows them to be used for
7895   --  entities whose Ekind has not been set yet).
7896
7897   procedure Init_Alignment                (Id : E; V : Int);
7898   procedure Init_Component_Size           (Id : E; V : Int);
7899   procedure Init_Component_Bit_Offset     (Id : E; V : Int);
7900   procedure Init_Digits_Value             (Id : E; V : Int);
7901   procedure Init_Esize                    (Id : E; V : Int);
7902   procedure Init_Normalized_First_Bit     (Id : E; V : Int);
7903   procedure Init_Normalized_Position      (Id : E; V : Int);
7904   procedure Init_Normalized_Position_Max  (Id : E; V : Int);
7905   procedure Init_RM_Size                  (Id : E; V : Int);
7906
7907   procedure Init_Alignment                (Id : E);
7908   procedure Init_Component_Size           (Id : E);
7909   procedure Init_Component_Bit_Offset     (Id : E);
7910   procedure Init_Digits_Value             (Id : E);
7911   procedure Init_Esize                    (Id : E);
7912   procedure Init_Normalized_First_Bit     (Id : E);
7913   procedure Init_Normalized_Position      (Id : E);
7914   procedure Init_Normalized_Position_Max  (Id : E);
7915   procedure Init_RM_Size                  (Id : E);
7916
7917   procedure Init_Size_Align (Id : E);
7918   --  This procedure initializes both size fields and the alignment
7919   --  field to all be Unknown.
7920
7921   procedure Init_Object_Size_Align (Id : E);
7922   --  Same as Init_Size_Align except RM_Size field (which is only for types)
7923   --  is unaffected.
7924
7925   procedure Init_Size (Id : E; V : Int);
7926   --  Initialize both the Esize and RM_Size fields of E to V
7927
7928   procedure Init_Component_Location (Id : E);
7929   --  Initializes all fields describing the location of a component
7930   --  (Normalized_Position, Component_Bit_Offset, Normalized_First_Bit,
7931   --  Normalized_Position_Max, Esize) to all be Unknown.
7932
7933   ---------------
7934   -- Iterators --
7935   ---------------
7936
7937   --  The call to Next_xxx (obj) is equivalent to obj := Next_xxx (obj)
7938   --  We define the set of Proc_Next_xxx routines simply for the purposes
7939   --  of inlining them without necessarily inlining the function.
7940
7941   procedure Proc_Next_Component                 (N : in out Node_Id);
7942   procedure Proc_Next_Component_Or_Discriminant (N : in out Node_Id);
7943   procedure Proc_Next_Discriminant              (N : in out Node_Id);
7944   procedure Proc_Next_Formal                    (N : in out Node_Id);
7945   procedure Proc_Next_Formal_With_Extras        (N : in out Node_Id);
7946   procedure Proc_Next_Index                     (N : in out Node_Id);
7947   procedure Proc_Next_Inlined_Subprogram        (N : in out Node_Id);
7948   procedure Proc_Next_Literal                   (N : in out Node_Id);
7949   procedure Proc_Next_Stored_Discriminant       (N : in out Node_Id);
7950
7951   pragma Inline (Proc_Next_Component);
7952   pragma Inline (Proc_Next_Component_Or_Discriminant);
7953   pragma Inline (Proc_Next_Discriminant);
7954   pragma Inline (Proc_Next_Formal);
7955   pragma Inline (Proc_Next_Formal_With_Extras);
7956   pragma Inline (Proc_Next_Index);
7957   pragma Inline (Proc_Next_Inlined_Subprogram);
7958   pragma Inline (Proc_Next_Literal);
7959   pragma Inline (Proc_Next_Stored_Discriminant);
7960
7961   procedure Next_Component                 (N : in out Node_Id)
7962     renames Proc_Next_Component;
7963
7964   procedure Next_Component_Or_Discriminant (N : in out Node_Id)
7965     renames Proc_Next_Component_Or_Discriminant;
7966
7967   procedure Next_Discriminant              (N : in out Node_Id)
7968     renames Proc_Next_Discriminant;
7969
7970   procedure Next_Formal                    (N : in out Node_Id)
7971     renames Proc_Next_Formal;
7972
7973   procedure Next_Formal_With_Extras        (N : in out Node_Id)
7974     renames Proc_Next_Formal_With_Extras;
7975
7976   procedure Next_Index                     (N : in out Node_Id)
7977     renames Proc_Next_Index;
7978
7979   procedure Next_Inlined_Subprogram        (N : in out Node_Id)
7980     renames Proc_Next_Inlined_Subprogram;
7981
7982   procedure Next_Literal                   (N : in out Node_Id)
7983     renames Proc_Next_Literal;
7984
7985   procedure Next_Stored_Discriminant       (N : in out Node_Id)
7986     renames Proc_Next_Stored_Discriminant;
7987
7988   ---------------------------
7989   -- Testing Warning Flags --
7990   ---------------------------
7991
7992   --  These routines are to be used rather than testing flags Warnings_Off,
7993   --  Has_Pragma_Unmodified, Has_Pragma_Unreferenced. They deal with setting
7994   --  the flags Warnings_Off_Used[_Unmodified|Unreferenced] for later access.
7995
7996   function Has_Warnings_Off (E : Entity_Id) return Boolean;
7997   --  If Warnings_Off is set on E, then returns True and also sets the flag
7998   --  Warnings_Off_Used on E. If Warnings_Off is not set on E, returns False
7999   --  and has no side effect.
8000
8001   function Has_Unmodified (E : Entity_Id) return Boolean;
8002   --  If flag Has_Pragma_Unmodified is set on E, returns True with no side
8003   --  effects. Otherwise if Warnings_Off is set on E, returns True and also
8004   --  sets the flag Warnings_Off_Used_Unmodified on E. If neither of the flags
8005   --  Warnings_Off nor Has_Pragma_Unmodified is set, returns False with no
8006   --  side effects.
8007
8008   function Has_Unreferenced (E : Entity_Id) return Boolean;
8009   --  If flag Has_Pragma_Unreferenced is set on E, returns True with no side
8010   --  effects. Otherwise if Warnings_Off is set on E, returns True and also
8011   --  sets the flag Warnings_Off_Used_Unreferenced on E. If neither of the
8012   --  flags Warnings_Off nor Has_Pragma_Unreferenced is set, returns False
8013   --  with no side effects.
8014
8015   ----------------------------------------------
8016   -- Subprograms for Accessing Rep Item Chain --
8017   ----------------------------------------------
8018
8019   --  The First_Rep_Item field of every entity points to a linked list (linked
8020   --  through Next_Rep_Item) of representation pragmas, attribute definition
8021   --  clauses, representation clauses, and aspect specifications that apply to
8022   --  the item. Note that in the case of types, it is assumed that any such
8023   --  rep items for a base type also apply to all subtypes. This is achieved
8024   --  by having the chain for subtypes link onto the chain for the base type,
8025   --  so that new entries for the subtype are added at the start of the chain.
8026   --
8027   --  Note: aspect specification nodes are linked only when evaluation of the
8028   --  expression is deferred to the freeze point. For further details see
8029   --  Sem_Ch13.Analyze_Aspect_Specifications.
8030
8031   function Get_Attribute_Definition_Clause
8032     (E  : Entity_Id;
8033      Id : Attribute_Id) return Node_Id;
8034   --  Searches the Rep_Item chain for a given entity E, for an instance of an
8035   --  attribute definition clause with the given attribute Id. If found, the
8036   --  value returned is the N_Attribute_Definition_Clause node, otherwise
8037   --  Empty is returned.
8038
8039   function Get_Pragma (E : Entity_Id; Id : Pragma_Id) return Node_Id;
8040   --  Searches the Rep_Item chain of entity E, for an instance of a pragma
8041   --  with the given pragma Id. If found, the value returned is the N_Pragma
8042   --  node, otherwise Empty is returned. The following contract pragmas that
8043   --  appear in N_Contract nodes are also handled by this routine:
8044   --    Abstract_State
8045   --    Async_Readers
8046   --    Async_Writers
8047   --    Attach_Handler
8048   --    Constant_After_Elaboration
8049   --    Contract_Cases
8050   --    Depends
8051   --    Effective_Reads
8052   --    Effective_Writes
8053   --    Global
8054   --    Initial_Condition
8055   --    Initializes
8056   --    Interrupt_Handler
8057   --    Part_Of
8058   --    Precondition
8059   --    Postcondition
8060   --    Refined_Depends
8061   --    Refined_Global
8062   --    Refined_Post
8063   --    Refined_State
8064   --    Test_Case
8065   --    Volatile_Function
8066
8067   function Get_Record_Representation_Clause (E : Entity_Id) return Node_Id;
8068   --  Searches the Rep_Item chain for a given entity E, for a record
8069   --  representation clause, and if found, returns it. Returns Empty
8070   --  if no such clause is found.
8071
8072   function Present_In_Rep_Item (E : Entity_Id; N : Node_Id) return Boolean;
8073   --  Return True if N is present in the Rep_Item chain for a given entity E
8074
8075   procedure Record_Rep_Item (E : Entity_Id; N : Node_Id);
8076   --  N is the node for a representation pragma, representation clause, an
8077   --  attribute definition clause, or an aspect specification that applies to
8078   --  entity E. This procedure links the node N onto the Rep_Item chain for
8079   --  entity E. Note that it is an error to call this procedure with E being
8080   --  overloadable, and N being a pragma that applies to multiple overloadable
8081   --  entities (Convention, Interface, Inline, Inline_Always, Import, Export,
8082   --  External). This is not allowed even in the case where the entity is not
8083   --  overloaded, since we can't rely on it being present in the overloaded
8084   --  case, it is not useful to have it present in the non-overloaded case.
8085
8086   -------------------------------
8087   -- Miscellaneous Subprograms --
8088   -------------------------------
8089
8090   procedure Append_Entity (Id : Entity_Id; V : Entity_Id);
8091   --  Add an entity to the list of entities declared in the scope V
8092
8093   function Get_Full_View (T : Entity_Id) return Entity_Id;
8094   --  If T is an incomplete type and the full declaration has been seen, or
8095   --  is the name of a class_wide type whose root is incomplete, return the
8096   --  corresponding full declaration, else return T itself.
8097
8098   function Is_Entity_Name (N : Node_Id) return Boolean;
8099   --  Test if the node N is the name of an entity (i.e. is an identifier,
8100   --  expanded name, or an attribute reference that returns an entity).
8101
8102   function Next_Index (Id : Node_Id) return Node_Id;
8103   --  Given an index from a previous call to First_Index or Next_Index,
8104   --  returns a node representing the occurrence of the next index subtype,
8105   --  or Empty if there are no more index subtypes.
8106
8107   function Scope_Depth (Id : Entity_Id) return Uint;
8108   --  Returns the scope depth value of the Id, unless the Id is a record
8109   --  type, in which case it returns the scope depth of the record scope.
8110
8111   function Subtype_Kind (K : Entity_Kind) return Entity_Kind;
8112   --  Given an entity_kind K this function returns the entity_kind
8113   --  corresponding to subtype kind of the type represented by K. For
8114   --  example if K is E_Signed_Integer_Type then E_Signed_Integer_Subtype
8115   --  is returned. If K is already a subtype kind it itself is returned. An
8116   --  internal error is generated if no such correspondence exists for K.
8117
8118   ----------------------------------
8119   -- Debugging Output Subprograms --
8120   ----------------------------------
8121
8122   procedure Write_Entity_Flags (Id : Entity_Id; Prefix : String);
8123   --  Writes a series of entries giving a line for each flag that is
8124   --  set to True. Each line is prefixed by the given string.
8125
8126   procedure Write_Entity_Info (Id : Entity_Id; Prefix : String);
8127   --  A debugging procedure to write out information about an entity
8128
8129   procedure Write_Field6_Name  (Id : Entity_Id);
8130   procedure Write_Field7_Name  (Id : Entity_Id);
8131   procedure Write_Field8_Name  (Id : Entity_Id);
8132   procedure Write_Field9_Name  (Id : Entity_Id);
8133   procedure Write_Field10_Name (Id : Entity_Id);
8134   procedure Write_Field11_Name (Id : Entity_Id);
8135   procedure Write_Field12_Name (Id : Entity_Id);
8136   procedure Write_Field13_Name (Id : Entity_Id);
8137   procedure Write_Field14_Name (Id : Entity_Id);
8138   procedure Write_Field15_Name (Id : Entity_Id);
8139   procedure Write_Field16_Name (Id : Entity_Id);
8140   procedure Write_Field17_Name (Id : Entity_Id);
8141   procedure Write_Field18_Name (Id : Entity_Id);
8142   procedure Write_Field19_Name (Id : Entity_Id);
8143   procedure Write_Field20_Name (Id : Entity_Id);
8144   procedure Write_Field21_Name (Id : Entity_Id);
8145   procedure Write_Field22_Name (Id : Entity_Id);
8146   procedure Write_Field23_Name (Id : Entity_Id);
8147   procedure Write_Field24_Name (Id : Entity_Id);
8148   procedure Write_Field25_Name (Id : Entity_Id);
8149   procedure Write_Field26_Name (Id : Entity_Id);
8150   procedure Write_Field27_Name (Id : Entity_Id);
8151   procedure Write_Field28_Name (Id : Entity_Id);
8152   procedure Write_Field29_Name (Id : Entity_Id);
8153   procedure Write_Field30_Name (Id : Entity_Id);
8154   procedure Write_Field31_Name (Id : Entity_Id);
8155   procedure Write_Field32_Name (Id : Entity_Id);
8156   procedure Write_Field33_Name (Id : Entity_Id);
8157   procedure Write_Field34_Name (Id : Entity_Id);
8158   procedure Write_Field35_Name (Id : Entity_Id);
8159   procedure Write_Field36_Name (Id : Entity_Id);
8160   procedure Write_Field37_Name (Id : Entity_Id);
8161   procedure Write_Field38_Name (Id : Entity_Id);
8162   procedure Write_Field39_Name (Id : Entity_Id);
8163   procedure Write_Field40_Name (Id : Entity_Id);
8164   procedure Write_Field41_Name (Id : Entity_Id);
8165   --  These routines are used in Treepr to output a nice symbolic name for
8166   --  the given field, depending on the Ekind. No blanks or end of lines are
8167   --  output, just the characters of the field name.
8168
8169   --------------------
8170   -- Inline Pragmas --
8171   --------------------
8172
8173   --  Note that these inline pragmas are referenced by the XEINFO utility
8174   --  program in preparing the corresponding C header, and only those
8175   --  subprograms meeting the requirements documented in the section on
8176   --  XEINFO may be referenced in this section.
8177
8178   pragma Inline (Abstract_States);
8179   pragma Inline (Accept_Address);
8180   pragma Inline (Access_Disp_Table);
8181   pragma Inline (Activation_Record_Component);
8182   pragma Inline (Actual_Subtype);
8183   pragma Inline (Address_Taken);
8184   pragma Inline (Alias);
8185   pragma Inline (Alignment);
8186   pragma Inline (Anonymous_Master);
8187   pragma Inline (Anonymous_Object);
8188   pragma Inline (Associated_Entity);
8189   pragma Inline (Associated_Formal_Package);
8190   pragma Inline (Associated_Node_For_Itype);
8191   pragma Inline (Associated_Storage_Pool);
8192   pragma Inline (Barrier_Function);
8193   pragma Inline (BIP_Initialization_Call);
8194   pragma Inline (Block_Node);
8195   pragma Inline (Body_Entity);
8196   pragma Inline (Body_Needed_For_SAL);
8197   pragma Inline (Body_References);
8198   pragma Inline (C_Pass_By_Copy);
8199   pragma Inline (Can_Never_Be_Null);
8200   pragma Inline (Can_Use_Internal_Rep);
8201   pragma Inline (Checks_May_Be_Suppressed);
8202   pragma Inline (Class_Wide_Preconds);
8203   pragma Inline (Class_Wide_Postconds);
8204   pragma Inline (Class_Wide_Type);
8205   pragma Inline (Cloned_Subtype);
8206   pragma Inline (Component_Bit_Offset);
8207   pragma Inline (Component_Clause);
8208   pragma Inline (Component_Size);
8209   pragma Inline (Component_Type);
8210   pragma Inline (Contains_Ignored_Ghost_Code);
8211   pragma Inline (Contract);
8212   pragma Inline (Contract_Wrapper);
8213   pragma Inline (Corresponding_Concurrent_Type);
8214   pragma Inline (Corresponding_Discriminant);
8215   pragma Inline (Corresponding_Equality);
8216   pragma Inline (Corresponding_Protected_Entry);
8217   pragma Inline (Corresponding_Record_Type);
8218   pragma Inline (Corresponding_Remote_Type);
8219   pragma Inline (CR_Discriminant);
8220   pragma Inline (Current_Use_Clause);
8221   pragma Inline (Current_Value);
8222   pragma Inline (Debug_Info_Off);
8223   pragma Inline (Debug_Renaming_Link);
8224   pragma Inline (Default_Aspect_Component_Value);
8225   pragma Inline (Default_Aspect_Value);
8226   pragma Inline (Default_Expr_Function);
8227   pragma Inline (Default_Expressions_Processed);
8228   pragma Inline (Default_Value);
8229   pragma Inline (Delay_Cleanups);
8230   pragma Inline (Delay_Subprogram_Descriptors);
8231   pragma Inline (Delta_Value);
8232   pragma Inline (Dependent_Instances);
8233   pragma Inline (Depends_On_Private);
8234   pragma Inline (Derived_Type_Link);
8235   pragma Inline (Digits_Value);
8236   pragma Inline (Direct_Primitive_Operations);
8237   pragma Inline (Directly_Designated_Type);
8238   pragma Inline (Disable_Controlled);
8239   pragma Inline (Discard_Names);
8240   pragma Inline (Discriminal);
8241   pragma Inline (Discriminal_Link);
8242   pragma Inline (Discriminant_Checking_Func);
8243   pragma Inline (Discriminant_Constraint);
8244   pragma Inline (Discriminant_Default_Value);
8245   pragma Inline (Discriminant_Number);
8246   pragma Inline (Dispatch_Table_Wrappers);
8247   pragma Inline (DT_Entry_Count);
8248   pragma Inline (DT_Offset_To_Top_Func);
8249   pragma Inline (DT_Position);
8250   pragma Inline (DTC_Entity);
8251   pragma Inline (Elaborate_Body_Desirable);
8252   pragma Inline (Elaboration_Entity);
8253   pragma Inline (Elaboration_Entity_Required);
8254   pragma Inline (Encapsulating_State);
8255   pragma Inline (Enclosing_Scope);
8256   pragma Inline (Entry_Accepted);
8257   pragma Inline (Entry_Bodies_Array);
8258   pragma Inline (Entry_Cancel_Parameter);
8259   pragma Inline (Entry_Component);
8260   pragma Inline (Entry_Formal);
8261   pragma Inline (Entry_Index_Constant);
8262   pragma Inline (Entry_Index_Type);
8263   pragma Inline (Entry_Parameters_Type);
8264   pragma Inline (Enum_Pos_To_Rep);
8265   pragma Inline (Enumeration_Pos);
8266   pragma Inline (Enumeration_Rep);
8267   pragma Inline (Enumeration_Rep_Expr);
8268   pragma Inline (Equivalent_Type);
8269   pragma Inline (Esize);
8270   pragma Inline (Extra_Accessibility);
8271   pragma Inline (Extra_Accessibility_Of_Result);
8272   pragma Inline (Extra_Constrained);
8273   pragma Inline (Extra_Formal);
8274   pragma Inline (Extra_Formals);
8275   pragma Inline (Finalization_Master);
8276   pragma Inline (Finalizer);
8277   pragma Inline (First_Entity);
8278   pragma Inline (First_Exit_Statement);
8279   pragma Inline (First_Index);
8280   pragma Inline (First_Literal);
8281   pragma Inline (First_Private_Entity);
8282   pragma Inline (First_Rep_Item);
8283   pragma Inline (Freeze_Node);
8284   pragma Inline (From_Limited_With);
8285   pragma Inline (Full_View);
8286   pragma Inline (Generic_Homonym);
8287   pragma Inline (Generic_Renamings);
8288   pragma Inline (Handler_Records);
8289   pragma Inline (Has_Aliased_Components);
8290   pragma Inline (Has_Alignment_Clause);
8291   pragma Inline (Has_All_Calls_Remote);
8292   pragma Inline (Has_Atomic_Components);
8293   pragma Inline (Has_Biased_Representation);
8294   pragma Inline (Has_Completion);
8295   pragma Inline (Has_Completion_In_Body);
8296   pragma Inline (Has_Complex_Representation);
8297   pragma Inline (Has_Component_Size_Clause);
8298   pragma Inline (Has_Constrained_Partial_View);
8299   pragma Inline (Has_Contiguous_Rep);
8300   pragma Inline (Has_Controlled_Component);
8301   pragma Inline (Has_Controlling_Result);
8302   pragma Inline (Has_Convention_Pragma);
8303   pragma Inline (Has_Default_Aspect);
8304   pragma Inline (Has_Default_Init_Cond);
8305   pragma Inline (Has_Delayed_Aspects);
8306   pragma Inline (Has_Delayed_Freeze);
8307   pragma Inline (Has_Delayed_Rep_Aspects);
8308   pragma Inline (Has_Discriminants);
8309   pragma Inline (Has_Dispatch_Table);
8310   pragma Inline (Has_Dynamic_Predicate_Aspect);
8311   pragma Inline (Has_Enumeration_Rep_Clause);
8312   pragma Inline (Has_Exit);
8313   pragma Inline (Has_Expanded_Contract);
8314   pragma Inline (Has_Forward_Instantiation);
8315   pragma Inline (Has_Fully_Qualified_Name);
8316   pragma Inline (Has_Gigi_Rep_Item);
8317   pragma Inline (Has_Homonym);
8318   pragma Inline (Has_Implicit_Dereference);
8319   pragma Inline (Has_Independent_Components);
8320   pragma Inline (Has_Inheritable_Invariants);
8321   pragma Inline (Has_Inherited_Default_Init_Cond);
8322   pragma Inline (Has_Initial_Value);
8323   pragma Inline (Has_Invariants);
8324   pragma Inline (Has_Loop_Entry_Attributes);
8325   pragma Inline (Has_Machine_Radix_Clause);
8326   pragma Inline (Has_Master_Entity);
8327   pragma Inline (Has_Missing_Return);
8328   pragma Inline (Has_Nested_Block_With_Handler);
8329   pragma Inline (Has_Nested_Subprogram);
8330   pragma Inline (Has_Non_Standard_Rep);
8331   pragma Inline (Has_Object_Size_Clause);
8332   pragma Inline (Has_Out_Or_In_Out_Parameter);
8333   pragma Inline (Has_Per_Object_Constraint);
8334   pragma Inline (Has_Pragma_Controlled);
8335   pragma Inline (Has_Pragma_Elaborate_Body);
8336   pragma Inline (Has_Pragma_Inline);
8337   pragma Inline (Has_Pragma_Inline_Always);
8338   pragma Inline (Has_Pragma_No_Inline);
8339   pragma Inline (Has_Pragma_Ordered);
8340   pragma Inline (Has_Pragma_Pack);
8341   pragma Inline (Has_Pragma_Preelab_Init);
8342   pragma Inline (Has_Pragma_Pure);
8343   pragma Inline (Has_Pragma_Pure_Function);
8344   pragma Inline (Has_Pragma_Thread_Local_Storage);
8345   pragma Inline (Has_Pragma_Unmodified);
8346   pragma Inline (Has_Pragma_Unreferenced);
8347   pragma Inline (Has_Pragma_Unreferenced_Objects);
8348   pragma Inline (Has_Predicates);
8349   pragma Inline (Has_Primitive_Operations);
8350   pragma Inline (Has_Private_Ancestor);
8351   pragma Inline (Has_Private_Declaration);
8352   pragma Inline (Has_Protected);
8353   pragma Inline (Has_Qualified_Name);
8354   pragma Inline (Has_RACW);
8355   pragma Inline (Has_Record_Rep_Clause);
8356   pragma Inline (Has_Recursive_Call);
8357   pragma Inline (Has_Shift_Operator);
8358   pragma Inline (Has_Size_Clause);
8359   pragma Inline (Has_Small_Clause);
8360   pragma Inline (Has_Specified_Layout);
8361   pragma Inline (Has_Specified_Stream_Input);
8362   pragma Inline (Has_Specified_Stream_Output);
8363   pragma Inline (Has_Specified_Stream_Read);
8364   pragma Inline (Has_Specified_Stream_Write);
8365   pragma Inline (Has_Static_Discriminants);
8366   pragma Inline (Has_Static_Predicate);
8367   pragma Inline (Has_Static_Predicate_Aspect);
8368   pragma Inline (Has_Storage_Size_Clause);
8369   pragma Inline (Has_Stream_Size_Clause);
8370   pragma Inline (Has_Task);
8371   pragma Inline (Has_Thunks);
8372   pragma Inline (Has_Unchecked_Union);
8373   pragma Inline (Has_Unknown_Discriminants);
8374   pragma Inline (Has_Visible_Refinement);
8375   pragma Inline (Has_Volatile_Components);
8376   pragma Inline (Has_Xref_Entry);
8377   pragma Inline (Hiding_Loop_Variable);
8378   pragma Inline (Homonym);
8379   pragma Inline (Import_Pragma);
8380   pragma Inline (Incomplete_Actuals);
8381   pragma Inline (In_Package_Body);
8382   pragma Inline (In_Private_Part);
8383   pragma Inline (In_Use);
8384   pragma Inline (Inner_Instances);
8385   pragma Inline (Interface_Alias);
8386   pragma Inline (Interface_Name);
8387   pragma Inline (Interfaces);
8388   pragma Inline (Is_Abstract_Subprogram);
8389   pragma Inline (Is_Abstract_Type);
8390   pragma Inline (Is_Access_Constant);
8391   pragma Inline (Is_Access_Protected_Subprogram_Type);
8392   pragma Inline (Is_Access_Subprogram_Type);
8393   pragma Inline (Is_Access_Type);
8394   pragma Inline (Is_Ada_2005_Only);
8395   pragma Inline (Is_Ada_2012_Only);
8396   pragma Inline (Is_Aggregate_Type);
8397   pragma Inline (Is_Aliased);
8398   pragma Inline (Is_Array_Type);
8399   pragma Inline (Is_Assignable);
8400   pragma Inline (Is_Asynchronous);
8401   pragma Inline (Is_Atomic);
8402   pragma Inline (Is_Atomic_Or_VFA);
8403   pragma Inline (Is_Bit_Packed_Array);
8404   pragma Inline (Is_Called);
8405   pragma Inline (Is_Character_Type);
8406   pragma Inline (Is_Checked_Ghost_Entity);
8407   pragma Inline (Is_Child_Unit);
8408   pragma Inline (Is_Class_Wide_Equivalent_Type);
8409   pragma Inline (Is_Class_Wide_Type);
8410   pragma Inline (Is_Compilation_Unit);
8411   pragma Inline (Is_Completely_Hidden);
8412   pragma Inline (Is_Composite_Type);
8413   pragma Inline (Is_Concurrent_Body);
8414   pragma Inline (Is_Concurrent_Record_Type);
8415   pragma Inline (Is_Concurrent_Type);
8416   pragma Inline (Is_Constr_Subt_For_U_Nominal);
8417   pragma Inline (Is_Constr_Subt_For_UN_Aliased);
8418   pragma Inline (Is_Constrained);
8419   pragma Inline (Is_Constructor);
8420   pragma Inline (Is_Controlled);
8421   pragma Inline (Is_Controlling_Formal);
8422   pragma Inline (Is_CPP_Class);
8423   pragma Inline (Is_Decimal_Fixed_Point_Type);
8424   pragma Inline (Is_Default_Init_Cond_Procedure);
8425   pragma Inline (Is_Descendent_Of_Address);
8426   pragma Inline (Is_Digits_Type);
8427   pragma Inline (Is_Discrete_Or_Fixed_Point_Type);
8428   pragma Inline (Is_Discrete_Type);
8429   pragma Inline (Is_Discrim_SO_Function);
8430   pragma Inline (Is_Discriminant_Check_Function);
8431   pragma Inline (Is_Dispatch_Table_Entity);
8432   pragma Inline (Is_Dispatching_Operation);
8433   pragma Inline (Is_Elementary_Type);
8434   pragma Inline (Is_Eliminated);
8435   pragma Inline (Is_Entry);
8436   pragma Inline (Is_Entry_Formal);
8437   pragma Inline (Is_Enumeration_Type);
8438   pragma Inline (Is_Exported);
8439   pragma Inline (Is_First_Subtype);
8440   pragma Inline (Is_Fixed_Point_Type);
8441   pragma Inline (Is_Floating_Point_Type);
8442   pragma Inline (Is_For_Access_Subtype);
8443   pragma Inline (Is_Formal);
8444   pragma Inline (Is_Formal_Object);
8445   pragma Inline (Is_Formal_Subprogram);
8446   pragma Inline (Is_Frozen);
8447   pragma Inline (Is_Generic_Actual_Subprogram);
8448   pragma Inline (Is_Generic_Actual_Type);
8449   pragma Inline (Is_Generic_Instance);
8450   pragma Inline (Is_Generic_Subprogram);
8451   pragma Inline (Is_Generic_Type);
8452   pragma Inline (Is_Generic_Unit);
8453   pragma Inline (Is_Ghost_Entity);
8454   pragma Inline (Is_Hidden);
8455   pragma Inline (Is_Hidden_Non_Overridden_Subpgm);
8456   pragma Inline (Is_Hidden_Open_Scope);
8457   pragma Inline (Is_Ignored_Ghost_Entity);
8458   pragma Inline (Is_Immediately_Visible);
8459   pragma Inline (Is_Implementation_Defined);
8460   pragma Inline (Is_Imported);
8461   pragma Inline (Is_Incomplete_Or_Private_Type);
8462   pragma Inline (Is_Incomplete_Type);
8463   pragma Inline (Is_Independent);
8464   pragma Inline (Is_Inlined);
8465   pragma Inline (Is_Inlined_Always);
8466   pragma Inline (Is_Instantiated);
8467   pragma Inline (Is_Integer_Type);
8468   pragma Inline (Is_Interface);
8469   pragma Inline (Is_Internal);
8470   pragma Inline (Is_Interrupt_Handler);
8471   pragma Inline (Is_Intrinsic_Subprogram);
8472   pragma Inline (Is_Invariant_Procedure);
8473   pragma Inline (Is_Itype);
8474   pragma Inline (Is_Known_Non_Null);
8475   pragma Inline (Is_Known_Null);
8476   pragma Inline (Is_Known_Valid);
8477   pragma Inline (Is_Limited_Composite);
8478   pragma Inline (Is_Limited_Interface);
8479   pragma Inline (Is_Limited_Record);
8480   pragma Inline (Is_Local_Anonymous_Access);
8481   pragma Inline (Is_Machine_Code_Subprogram);
8482   pragma Inline (Is_Modular_Integer_Type);
8483   pragma Inline (Is_Named_Number);
8484   pragma Inline (Is_Non_Static_Subtype);
8485   pragma Inline (Is_Null_Init_Proc);
8486   pragma Inline (Is_Numeric_Type);
8487   pragma Inline (Is_Object);
8488   pragma Inline (Is_Obsolescent);
8489   pragma Inline (Is_Only_Out_Parameter);
8490   pragma Inline (Is_Ordinary_Fixed_Point_Type);
8491   pragma Inline (Is_Overloadable);
8492   pragma Inline (Is_Package_Body_Entity);
8493   pragma Inline (Is_Packed);
8494   pragma Inline (Is_Packed_Array_Impl_Type);
8495   pragma Inline (Is_Param_Block_Component_Type);
8496   pragma Inline (Is_Potentially_Use_Visible);
8497   pragma Inline (Is_Predicate_Function);
8498   pragma Inline (Is_Predicate_Function_M);
8499   pragma Inline (Is_Preelaborated);
8500   pragma Inline (Is_Primitive);
8501   pragma Inline (Is_Primitive_Wrapper);
8502   pragma Inline (Is_Private_Composite);
8503   pragma Inline (Is_Private_Descendant);
8504   pragma Inline (Is_Private_Primitive);
8505   pragma Inline (Is_Private_Type);
8506   pragma Inline (Is_Processed_Transient);
8507   pragma Inline (Is_Protected_Type);
8508   pragma Inline (Is_Public);
8509   pragma Inline (Is_Pure);
8510   pragma Inline (Is_Pure_Unit_Access_Type);
8511   pragma Inline (Is_RACW_Stub_Type);
8512   pragma Inline (Is_Raised);
8513   pragma Inline (Is_Real_Type);
8514   pragma Inline (Is_Record_Type);
8515   pragma Inline (Is_Remote_Call_Interface);
8516   pragma Inline (Is_Remote_Types);
8517   pragma Inline (Is_Renaming_Of_Object);
8518   pragma Inline (Is_Return_Object);
8519   pragma Inline (Is_Safe_To_Reevaluate);
8520   pragma Inline (Is_Scalar_Type);
8521   pragma Inline (Is_Shared_Passive);
8522   pragma Inline (Is_Signed_Integer_Type);
8523   pragma Inline (Is_Static_Type);
8524   pragma Inline (Is_Statically_Allocated);
8525   pragma Inline (Is_Subprogram);
8526   pragma Inline (Is_Tag);
8527   pragma Inline (Is_Tagged_Type);
8528   pragma Inline (Is_Task_Type);
8529   pragma Inline (Is_Thunk);
8530   pragma Inline (Is_Trivial_Subprogram);
8531   pragma Inline (Is_True_Constant);
8532   pragma Inline (Is_Type);
8533   pragma Inline (Is_Unchecked_Union);
8534   pragma Inline (Is_Underlying_Record_View);
8535   pragma Inline (Is_Unimplemented);
8536   pragma Inline (Is_Unsigned_Type);
8537   pragma Inline (Is_Uplevel_Referenced_Entity);
8538   pragma Inline (Is_Valued_Procedure);
8539   pragma Inline (Is_Visible_Formal);
8540   pragma Inline (Is_Visible_Lib_Unit);
8541   pragma Inline (Is_Volatile_Full_Access);
8542   pragma Inline (Itype_Printed);
8543   pragma Inline (Kill_Elaboration_Checks);
8544   pragma Inline (Kill_Range_Checks);
8545   pragma Inline (Known_To_Have_Preelab_Init);
8546   pragma Inline (Last_Aggregate_Assignment);
8547   pragma Inline (Last_Assignment);
8548   pragma Inline (Last_Entity);
8549   pragma Inline (Limited_View);
8550   pragma Inline (Linker_Section_Pragma);
8551   pragma Inline (Lit_Indexes);
8552   pragma Inline (Lit_Strings);
8553   pragma Inline (Low_Bound_Tested);
8554   pragma Inline (Machine_Radix_10);
8555   pragma Inline (Master_Id);
8556   pragma Inline (Materialize_Entity);
8557   pragma Inline (May_Inherit_Delayed_Rep_Aspects);
8558   pragma Inline (Mechanism);
8559   pragma Inline (Modulus);
8560   pragma Inline (Must_Be_On_Byte_Boundary);
8561   pragma Inline (Must_Have_Preelab_Init);
8562   pragma Inline (Needs_Debug_Info);
8563   pragma Inline (Needs_No_Actuals);
8564   pragma Inline (Never_Set_In_Source);
8565   pragma Inline (Next_Index);
8566   pragma Inline (Next_Inlined_Subprogram);
8567   pragma Inline (Next_Literal);
8568   pragma Inline (No_Dynamic_Predicate_On_Actual);
8569   pragma Inline (No_Pool_Assigned);
8570   pragma Inline (No_Predicate_On_Actual);
8571   pragma Inline (No_Return);
8572   pragma Inline (No_Strict_Aliasing);
8573   pragma Inline (No_Tagged_Streams_Pragma);
8574   pragma Inline (Non_Binary_Modulus);
8575   pragma Inline (Non_Limited_View);
8576   pragma Inline (Nonzero_Is_True);
8577   pragma Inline (Normalized_First_Bit);
8578   pragma Inline (Normalized_Position);
8579   pragma Inline (Normalized_Position_Max);
8580   pragma Inline (OK_To_Rename);
8581   pragma Inline (OK_To_Reorder_Components);
8582   pragma Inline (Optimize_Alignment_Space);
8583   pragma Inline (Optimize_Alignment_Time);
8584   pragma Inline (Original_Access_Type);
8585   pragma Inline (Original_Array_Type);
8586   pragma Inline (Original_Record_Component);
8587   pragma Inline (Overlays_Constant);
8588   pragma Inline (Overridden_Operation);
8589   pragma Inline (Package_Instantiation);
8590   pragma Inline (Packed_Array_Impl_Type);
8591   pragma Inline (Parameter_Mode);
8592   pragma Inline (Parent_Subtype);
8593   pragma Inline (Part_Of_Constituents);
8594   pragma Inline (Part_Of_References);
8595   pragma Inline (Partial_View_Has_Unknown_Discr);
8596   pragma Inline (Pending_Access_Types);
8597   pragma Inline (Postconditions_Proc);
8598   pragma Inline (Prival);
8599   pragma Inline (Prival_Link);
8600   pragma Inline (Private_Dependents);
8601   pragma Inline (Private_View);
8602   pragma Inline (Protected_Body_Subprogram);
8603   pragma Inline (Protected_Formal);
8604   pragma Inline (Protection_Object);
8605   pragma Inline (Reachable);
8606   pragma Inline (Referenced);
8607   pragma Inline (Referenced_As_LHS);
8608   pragma Inline (Referenced_As_Out_Parameter);
8609   pragma Inline (Refinement_Constituents);
8610   pragma Inline (Register_Exception_Call);
8611   pragma Inline (Related_Array_Object);
8612   pragma Inline (Related_Expression);
8613   pragma Inline (Related_Instance);
8614   pragma Inline (Related_Type);
8615   pragma Inline (Relative_Deadline_Variable);
8616   pragma Inline (Renamed_Entity);
8617   pragma Inline (Renamed_In_Spec);
8618   pragma Inline (Renamed_Object);
8619   pragma Inline (Renaming_Map);
8620   pragma Inline (Requires_Overriding);
8621   pragma Inline (Return_Applies_To);
8622   pragma Inline (Return_Present);
8623   pragma Inline (Returns_By_Ref);
8624   pragma Inline (Returns_Limited_View);
8625   pragma Inline (Reverse_Bit_Order);
8626   pragma Inline (Reverse_Storage_Order);
8627   pragma Inline (Rewritten_For_C);
8628   pragma Inline (RM_Size);
8629   pragma Inline (Scalar_Range);
8630   pragma Inline (Scale_Value);
8631   pragma Inline (Scope_Depth_Value);
8632   pragma Inline (Sec_Stack_Needed_For_Return);
8633   pragma Inline (Shadow_Entities);
8634   pragma Inline (Shared_Var_Procs_Instance);
8635   pragma Inline (Size_Check_Code);
8636   pragma Inline (Size_Depends_On_Discriminant);
8637   pragma Inline (Size_Known_At_Compile_Time);
8638   pragma Inline (Small_Value);
8639   pragma Inline (SPARK_Aux_Pragma);
8640   pragma Inline (SPARK_Aux_Pragma_Inherited);
8641   pragma Inline (SPARK_Pragma);
8642   pragma Inline (SPARK_Pragma_Inherited);
8643   pragma Inline (Spec_Entity);
8644   pragma Inline (SSO_Set_High_By_Default);
8645   pragma Inline (SSO_Set_Low_By_Default);
8646   pragma Inline (Static_Discrete_Predicate);
8647   pragma Inline (Static_Elaboration_Desired);
8648   pragma Inline (Static_Initialization);
8649   pragma Inline (Static_Real_Or_String_Predicate);
8650   pragma Inline (Status_Flag_Or_Transient_Decl);
8651   pragma Inline (Storage_Size_Variable);
8652   pragma Inline (Stored_Constraint);
8653   pragma Inline (Stores_Attribute_Old_Prefix);
8654   pragma Inline (Strict_Alignment);
8655   pragma Inline (String_Literal_Length);
8656   pragma Inline (String_Literal_Low_Bound);
8657   pragma Inline (Subprograms_For_Type);
8658   pragma Inline (Subps_Index);
8659   pragma Inline (Suppress_Elaboration_Warnings);
8660   pragma Inline (Suppress_Initialization);
8661   pragma Inline (Suppress_Style_Checks);
8662   pragma Inline (Suppress_Value_Tracking_On_Call);
8663   pragma Inline (Task_Body_Procedure);
8664   pragma Inline (Thunk_Entity);
8665   pragma Inline (Treat_As_Volatile);
8666   pragma Inline (Underlying_Full_View);
8667   pragma Inline (Underlying_Record_View);
8668   pragma Inline (Universal_Aliasing);
8669   pragma Inline (Unset_Reference);
8670   pragma Inline (Used_As_Generic_Actual);
8671   pragma Inline (Uses_Lock_Free);
8672   pragma Inline (Uses_Sec_Stack);
8673   pragma Inline (Warnings_Off);
8674   pragma Inline (Warnings_Off_Used);
8675   pragma Inline (Warnings_Off_Used_Unmodified);
8676   pragma Inline (Warnings_Off_Used_Unreferenced);
8677   pragma Inline (Was_Hidden);
8678   pragma Inline (Wrapped_Entity);
8679
8680   pragma Inline (Init_Alignment);
8681   pragma Inline (Init_Component_Bit_Offset);
8682   pragma Inline (Init_Component_Size);
8683   pragma Inline (Init_Digits_Value);
8684   pragma Inline (Init_Esize);
8685   pragma Inline (Init_RM_Size);
8686
8687   pragma Inline (Set_Abstract_States);
8688   pragma Inline (Set_Accept_Address);
8689   pragma Inline (Set_Access_Disp_Table);
8690   pragma Inline (Set_Activation_Record_Component);
8691   pragma Inline (Set_Actual_Subtype);
8692   pragma Inline (Set_Address_Taken);
8693   pragma Inline (Set_Alias);
8694   pragma Inline (Set_Alignment);
8695   pragma Inline (Set_Anonymous_Master);
8696   pragma Inline (Set_Anonymous_Object);
8697   pragma Inline (Set_Associated_Entity);
8698   pragma Inline (Set_Associated_Formal_Package);
8699   pragma Inline (Set_Associated_Node_For_Itype);
8700   pragma Inline (Set_Associated_Storage_Pool);
8701   pragma Inline (Set_Barrier_Function);
8702   pragma Inline (Set_BIP_Initialization_Call);
8703   pragma Inline (Set_Block_Node);
8704   pragma Inline (Set_Body_Entity);
8705   pragma Inline (Set_Body_Needed_For_SAL);
8706   pragma Inline (Set_Body_References);
8707   pragma Inline (Set_C_Pass_By_Copy);
8708   pragma Inline (Set_Can_Never_Be_Null);
8709   pragma Inline (Set_Can_Use_Internal_Rep);
8710   pragma Inline (Set_Checks_May_Be_Suppressed);
8711   pragma Inline (Set_Class_Wide_Postconds);
8712   pragma Inline (Set_Class_Wide_Preconds);
8713   pragma Inline (Set_Class_Wide_Type);
8714   pragma Inline (Set_Cloned_Subtype);
8715   pragma Inline (Set_Component_Bit_Offset);
8716   pragma Inline (Set_Component_Clause);
8717   pragma Inline (Set_Component_Size);
8718   pragma Inline (Set_Component_Type);
8719   pragma Inline (Set_Contains_Ignored_Ghost_Code);
8720   pragma Inline (Set_Contract);
8721   pragma Inline (Set_Contract_Wrapper);
8722   pragma Inline (Set_Corresponding_Concurrent_Type);
8723   pragma Inline (Set_Corresponding_Discriminant);
8724   pragma Inline (Set_Corresponding_Equality);
8725   pragma Inline (Set_Corresponding_Protected_Entry);
8726   pragma Inline (Set_Corresponding_Record_Type);
8727   pragma Inline (Set_Corresponding_Remote_Type);
8728   pragma Inline (Set_CR_Discriminant);
8729   pragma Inline (Set_Current_Use_Clause);
8730   pragma Inline (Set_Current_Value);
8731   pragma Inline (Set_Debug_Info_Off);
8732   pragma Inline (Set_Debug_Renaming_Link);
8733   pragma Inline (Set_Default_Aspect_Component_Value);
8734   pragma Inline (Set_Default_Aspect_Value);
8735   pragma Inline (Set_Default_Expr_Function);
8736   pragma Inline (Set_Default_Expressions_Processed);
8737   pragma Inline (Set_Default_Value);
8738   pragma Inline (Set_Delay_Cleanups);
8739   pragma Inline (Set_Delay_Subprogram_Descriptors);
8740   pragma Inline (Set_Delta_Value);
8741   pragma Inline (Set_Dependent_Instances);
8742   pragma Inline (Set_Depends_On_Private);
8743   pragma Inline (Set_Derived_Type_Link);
8744   pragma Inline (Set_Digits_Value);
8745   pragma Inline (Set_Direct_Primitive_Operations);
8746   pragma Inline (Set_Directly_Designated_Type);
8747   pragma Inline (Set_Disable_Controlled);
8748   pragma Inline (Set_Discard_Names);
8749   pragma Inline (Set_Discriminal);
8750   pragma Inline (Set_Discriminal_Link);
8751   pragma Inline (Set_Discriminant_Checking_Func);
8752   pragma Inline (Set_Discriminant_Constraint);
8753   pragma Inline (Set_Discriminant_Default_Value);
8754   pragma Inline (Set_Discriminant_Number);
8755   pragma Inline (Set_Dispatch_Table_Wrappers);
8756   pragma Inline (Set_DT_Entry_Count);
8757   pragma Inline (Set_DT_Offset_To_Top_Func);
8758   pragma Inline (Set_DT_Position);
8759   pragma Inline (Set_DTC_Entity);
8760   pragma Inline (Set_Elaborate_Body_Desirable);
8761   pragma Inline (Set_Elaboration_Entity);
8762   pragma Inline (Set_Elaboration_Entity_Required);
8763   pragma Inline (Set_Encapsulating_State);
8764   pragma Inline (Set_Enclosing_Scope);
8765   pragma Inline (Set_Entry_Accepted);
8766   pragma Inline (Set_Entry_Bodies_Array);
8767   pragma Inline (Set_Entry_Cancel_Parameter);
8768   pragma Inline (Set_Entry_Component);
8769   pragma Inline (Set_Entry_Formal);
8770   pragma Inline (Set_Entry_Parameters_Type);
8771   pragma Inline (Set_Enum_Pos_To_Rep);
8772   pragma Inline (Set_Enumeration_Pos);
8773   pragma Inline (Set_Enumeration_Rep);
8774   pragma Inline (Set_Enumeration_Rep_Expr);
8775   pragma Inline (Set_Equivalent_Type);
8776   pragma Inline (Set_Esize);
8777   pragma Inline (Set_Extra_Accessibility);
8778   pragma Inline (Set_Extra_Accessibility_Of_Result);
8779   pragma Inline (Set_Extra_Constrained);
8780   pragma Inline (Set_Extra_Formal);
8781   pragma Inline (Set_Extra_Formals);
8782   pragma Inline (Set_Finalization_Master);
8783   pragma Inline (Set_Finalizer);
8784   pragma Inline (Set_First_Entity);
8785   pragma Inline (Set_First_Exit_Statement);
8786   pragma Inline (Set_First_Index);
8787   pragma Inline (Set_First_Literal);
8788   pragma Inline (Set_First_Private_Entity);
8789   pragma Inline (Set_First_Rep_Item);
8790   pragma Inline (Set_Freeze_Node);
8791   pragma Inline (Set_From_Limited_With);
8792   pragma Inline (Set_Full_View);
8793   pragma Inline (Set_Generic_Homonym);
8794   pragma Inline (Set_Generic_Renamings);
8795   pragma Inline (Set_Handler_Records);
8796   pragma Inline (Set_Has_Aliased_Components);
8797   pragma Inline (Set_Has_Alignment_Clause);
8798   pragma Inline (Set_Has_All_Calls_Remote);
8799   pragma Inline (Set_Has_Atomic_Components);
8800   pragma Inline (Set_Has_Biased_Representation);
8801   pragma Inline (Set_Has_Completion);
8802   pragma Inline (Set_Has_Completion_In_Body);
8803   pragma Inline (Set_Has_Complex_Representation);
8804   pragma Inline (Set_Has_Component_Size_Clause);
8805   pragma Inline (Set_Has_Constrained_Partial_View);
8806   pragma Inline (Set_Has_Contiguous_Rep);
8807   pragma Inline (Set_Has_Controlled_Component);
8808   pragma Inline (Set_Has_Controlling_Result);
8809   pragma Inline (Set_Has_Convention_Pragma);
8810   pragma Inline (Set_Has_Default_Aspect);
8811   pragma Inline (Set_Has_Default_Init_Cond);
8812   pragma Inline (Set_Has_Delayed_Aspects);
8813   pragma Inline (Set_Has_Delayed_Freeze);
8814   pragma Inline (Set_Has_Delayed_Rep_Aspects);
8815   pragma Inline (Set_Has_Discriminants);
8816   pragma Inline (Set_Has_Dispatch_Table);
8817   pragma Inline (Set_Has_Dynamic_Predicate_Aspect);
8818   pragma Inline (Set_Has_Enumeration_Rep_Clause);
8819   pragma Inline (Set_Has_Exit);
8820   pragma Inline (Set_Has_Expanded_Contract);
8821   pragma Inline (Set_Has_Forward_Instantiation);
8822   pragma Inline (Set_Has_Fully_Qualified_Name);
8823   pragma Inline (Set_Has_Gigi_Rep_Item);
8824   pragma Inline (Set_Has_Homonym);
8825   pragma Inline (Set_Has_Implicit_Dereference);
8826   pragma Inline (Set_Has_Independent_Components);
8827   pragma Inline (Set_Has_Inheritable_Invariants);
8828   pragma Inline (Set_Has_Inherited_Default_Init_Cond);
8829   pragma Inline (Set_Has_Initial_Value);
8830   pragma Inline (Set_Has_Invariants);
8831   pragma Inline (Set_Has_Loop_Entry_Attributes);
8832   pragma Inline (Set_Has_Machine_Radix_Clause);
8833   pragma Inline (Set_Has_Master_Entity);
8834   pragma Inline (Set_Has_Missing_Return);
8835   pragma Inline (Set_Has_Nested_Block_With_Handler);
8836   pragma Inline (Set_Has_Nested_Subprogram);
8837   pragma Inline (Set_Has_Non_Standard_Rep);
8838   pragma Inline (Set_Has_Object_Size_Clause);
8839   pragma Inline (Set_Has_Out_Or_In_Out_Parameter);
8840   pragma Inline (Set_Has_Per_Object_Constraint);
8841   pragma Inline (Set_Has_Pragma_Controlled);
8842   pragma Inline (Set_Has_Pragma_Elaborate_Body);
8843   pragma Inline (Set_Has_Pragma_Inline);
8844   pragma Inline (Set_Has_Pragma_Inline_Always);
8845   pragma Inline (Set_Has_Pragma_No_Inline);
8846   pragma Inline (Set_Has_Pragma_Ordered);
8847   pragma Inline (Set_Has_Pragma_Pack);
8848   pragma Inline (Set_Has_Pragma_Preelab_Init);
8849   pragma Inline (Set_Has_Pragma_Pure);
8850   pragma Inline (Set_Has_Pragma_Pure_Function);
8851   pragma Inline (Set_Has_Pragma_Thread_Local_Storage);
8852   pragma Inline (Set_Has_Pragma_Unmodified);
8853   pragma Inline (Set_Has_Pragma_Unreferenced);
8854   pragma Inline (Set_Has_Pragma_Unreferenced_Objects);
8855   pragma Inline (Set_Has_Predicates);
8856   pragma Inline (Set_Has_Primitive_Operations);
8857   pragma Inline (Set_Has_Private_Ancestor);
8858   pragma Inline (Set_Has_Private_Declaration);
8859   pragma Inline (Set_Has_Protected);
8860   pragma Inline (Set_Has_Qualified_Name);
8861   pragma Inline (Set_Has_RACW);
8862   pragma Inline (Set_Has_Record_Rep_Clause);
8863   pragma Inline (Set_Has_Recursive_Call);
8864   pragma Inline (Set_Has_Shift_Operator);
8865   pragma Inline (Set_Has_Size_Clause);
8866   pragma Inline (Set_Has_Small_Clause);
8867   pragma Inline (Set_Has_Specified_Layout);
8868   pragma Inline (Set_Has_Specified_Stream_Input);
8869   pragma Inline (Set_Has_Specified_Stream_Output);
8870   pragma Inline (Set_Has_Specified_Stream_Read);
8871   pragma Inline (Set_Has_Specified_Stream_Write);
8872   pragma Inline (Set_Has_Static_Discriminants);
8873   pragma Inline (Set_Has_Static_Predicate);
8874   pragma Inline (Set_Has_Static_Predicate_Aspect);
8875   pragma Inline (Set_Has_Storage_Size_Clause);
8876   pragma Inline (Set_Has_Stream_Size_Clause);
8877   pragma Inline (Set_Has_Task);
8878   pragma Inline (Set_Has_Thunks);
8879   pragma Inline (Set_Has_Unchecked_Union);
8880   pragma Inline (Set_Has_Unknown_Discriminants);
8881   pragma Inline (Set_Has_Visible_Refinement);
8882   pragma Inline (Set_Has_Volatile_Components);
8883   pragma Inline (Set_Has_Xref_Entry);
8884   pragma Inline (Set_Hiding_Loop_Variable);
8885   pragma Inline (Set_Homonym);
8886   pragma Inline (Set_Import_Pragma);
8887   pragma Inline (Set_Incomplete_Actuals);
8888   pragma Inline (Set_In_Package_Body);
8889   pragma Inline (Set_In_Private_Part);
8890   pragma Inline (Set_In_Use);
8891   pragma Inline (Set_Inner_Instances);
8892   pragma Inline (Set_Interface_Alias);
8893   pragma Inline (Set_Interface_Name);
8894   pragma Inline (Set_Interfaces);
8895   pragma Inline (Set_Is_Abstract_Subprogram);
8896   pragma Inline (Set_Is_Abstract_Type);
8897   pragma Inline (Set_Is_Access_Constant);
8898   pragma Inline (Set_Is_Ada_2005_Only);
8899   pragma Inline (Set_Is_Ada_2012_Only);
8900   pragma Inline (Set_Is_Aliased);
8901   pragma Inline (Set_Is_Asynchronous);
8902   pragma Inline (Set_Is_Atomic);
8903   pragma Inline (Set_Is_Bit_Packed_Array);
8904   pragma Inline (Set_Is_Called);
8905   pragma Inline (Set_Is_Character_Type);
8906   pragma Inline (Set_Is_Checked_Ghost_Entity);
8907   pragma Inline (Set_Is_Child_Unit);
8908   pragma Inline (Set_Is_Class_Wide_Equivalent_Type);
8909   pragma Inline (Set_Is_Compilation_Unit);
8910   pragma Inline (Set_Is_Completely_Hidden);
8911   pragma Inline (Set_Is_Concurrent_Record_Type);
8912   pragma Inline (Set_Is_Constr_Subt_For_U_Nominal);
8913   pragma Inline (Set_Is_Constr_Subt_For_UN_Aliased);
8914   pragma Inline (Set_Is_Constrained);
8915   pragma Inline (Set_Is_Constructor);
8916   pragma Inline (Set_Is_Controlled);
8917   pragma Inline (Set_Is_Controlling_Formal);
8918   pragma Inline (Set_Is_CPP_Class);
8919   pragma Inline (Set_Is_Default_Init_Cond_Procedure);
8920   pragma Inline (Set_Is_Descendent_Of_Address);
8921   pragma Inline (Set_Is_Discrim_SO_Function);
8922   pragma Inline (Set_Is_Discriminant_Check_Function);
8923   pragma Inline (Set_Is_Dispatch_Table_Entity);
8924   pragma Inline (Set_Is_Dispatching_Operation);
8925   pragma Inline (Set_Is_Eliminated);
8926   pragma Inline (Set_Is_Entry_Formal);
8927   pragma Inline (Set_Is_Exported);
8928   pragma Inline (Set_Is_First_Subtype);
8929   pragma Inline (Set_Is_For_Access_Subtype);
8930   pragma Inline (Set_Is_Formal_Subprogram);
8931   pragma Inline (Set_Is_Frozen);
8932   pragma Inline (Set_Is_Generic_Actual_Subprogram);
8933   pragma Inline (Set_Is_Generic_Actual_Type);
8934   pragma Inline (Set_Is_Generic_Instance);
8935   pragma Inline (Set_Is_Generic_Type);
8936   pragma Inline (Set_Is_Hidden);
8937   pragma Inline (Set_Is_Hidden_Non_Overridden_Subpgm);
8938   pragma Inline (Set_Is_Hidden_Open_Scope);
8939   pragma Inline (Set_Is_Ignored_Ghost_Entity);
8940   pragma Inline (Set_Is_Immediately_Visible);
8941   pragma Inline (Set_Is_Implementation_Defined);
8942   pragma Inline (Set_Is_Imported);
8943   pragma Inline (Set_Is_Independent);
8944   pragma Inline (Set_Is_Inlined);
8945   pragma Inline (Set_Is_Inlined_Always);
8946   pragma Inline (Set_Is_Instantiated);
8947   pragma Inline (Set_Is_Interface);
8948   pragma Inline (Set_Is_Internal);
8949   pragma Inline (Set_Is_Interrupt_Handler);
8950   pragma Inline (Set_Is_Intrinsic_Subprogram);
8951   pragma Inline (Set_Is_Invariant_Procedure);
8952   pragma Inline (Set_Is_Itype);
8953   pragma Inline (Set_Is_Known_Non_Null);
8954   pragma Inline (Set_Is_Known_Null);
8955   pragma Inline (Set_Is_Known_Valid);
8956   pragma Inline (Set_Is_Limited_Composite);
8957   pragma Inline (Set_Is_Limited_Interface);
8958   pragma Inline (Set_Is_Limited_Record);
8959   pragma Inline (Set_Is_Local_Anonymous_Access);
8960   pragma Inline (Set_Is_Machine_Code_Subprogram);
8961   pragma Inline (Set_Is_Non_Static_Subtype);
8962   pragma Inline (Set_Is_Null_Init_Proc);
8963   pragma Inline (Set_Is_Obsolescent);
8964   pragma Inline (Set_Is_Only_Out_Parameter);
8965   pragma Inline (Set_Is_Package_Body_Entity);
8966   pragma Inline (Set_Is_Packed);
8967   pragma Inline (Set_Is_Packed_Array_Impl_Type);
8968   pragma Inline (Set_Is_Param_Block_Component_Type);
8969   pragma Inline (Set_Is_Potentially_Use_Visible);
8970   pragma Inline (Set_Is_Predicate_Function);
8971   pragma Inline (Set_Is_Predicate_Function_M);
8972   pragma Inline (Set_Is_Preelaborated);
8973   pragma Inline (Set_Is_Primitive);
8974   pragma Inline (Set_Is_Primitive_Wrapper);
8975   pragma Inline (Set_Is_Private_Composite);
8976   pragma Inline (Set_Is_Private_Descendant);
8977   pragma Inline (Set_Is_Private_Primitive);
8978   pragma Inline (Set_Is_Processed_Transient);
8979   pragma Inline (Set_Is_Public);
8980   pragma Inline (Set_Is_Pure);
8981   pragma Inline (Set_Is_Pure_Unit_Access_Type);
8982   pragma Inline (Set_Is_RACW_Stub_Type);
8983   pragma Inline (Set_Is_Raised);
8984   pragma Inline (Set_Is_Remote_Call_Interface);
8985   pragma Inline (Set_Is_Remote_Types);
8986   pragma Inline (Set_Is_Renaming_Of_Object);
8987   pragma Inline (Set_Is_Return_Object);
8988   pragma Inline (Set_Is_Safe_To_Reevaluate);
8989   pragma Inline (Set_Is_Shared_Passive);
8990   pragma Inline (Set_Is_Static_Type);
8991   pragma Inline (Set_Is_Statically_Allocated);
8992   pragma Inline (Set_Is_Tag);
8993   pragma Inline (Set_Is_Tagged_Type);
8994   pragma Inline (Set_Is_Thunk);
8995   pragma Inline (Set_Is_Trivial_Subprogram);
8996   pragma Inline (Set_Is_True_Constant);
8997   pragma Inline (Set_Is_Unchecked_Union);
8998   pragma Inline (Set_Is_Underlying_Record_View);
8999   pragma Inline (Set_Is_Unimplemented);
9000   pragma Inline (Set_Is_Unsigned_Type);
9001   pragma Inline (Set_Is_Uplevel_Referenced_Entity);
9002   pragma Inline (Set_Is_Valued_Procedure);
9003   pragma Inline (Set_Is_Visible_Formal);
9004   pragma Inline (Set_Is_Visible_Lib_Unit);
9005   pragma Inline (Set_Is_Volatile);
9006   pragma Inline (Set_Is_Volatile_Full_Access);
9007   pragma Inline (Set_Itype_Printed);
9008   pragma Inline (Set_Kill_Elaboration_Checks);
9009   pragma Inline (Set_Kill_Range_Checks);
9010   pragma Inline (Set_Known_To_Have_Preelab_Init);
9011   pragma Inline (Set_Last_Aggregate_Assignment);
9012   pragma Inline (Set_Last_Assignment);
9013   pragma Inline (Set_Last_Entity);
9014   pragma Inline (Set_Limited_View);
9015   pragma Inline (Set_Linker_Section_Pragma);
9016   pragma Inline (Set_Lit_Indexes);
9017   pragma Inline (Set_Lit_Strings);
9018   pragma Inline (Set_Low_Bound_Tested);
9019   pragma Inline (Set_Machine_Radix_10);
9020   pragma Inline (Set_Master_Id);
9021   pragma Inline (Set_Materialize_Entity);
9022   pragma Inline (Set_May_Inherit_Delayed_Rep_Aspects);
9023   pragma Inline (Set_Mechanism);
9024   pragma Inline (Set_Modulus);
9025   pragma Inline (Set_Must_Be_On_Byte_Boundary);
9026   pragma Inline (Set_Must_Have_Preelab_Init);
9027   pragma Inline (Set_Needs_Debug_Info);
9028   pragma Inline (Set_Needs_No_Actuals);
9029   pragma Inline (Set_Never_Set_In_Source);
9030   pragma Inline (Set_Next_Inlined_Subprogram);
9031   pragma Inline (Set_No_Dynamic_Predicate_On_Actual);
9032   pragma Inline (Set_No_Pool_Assigned);
9033   pragma Inline (Set_No_Predicate_On_Actual);
9034   pragma Inline (Set_No_Return);
9035   pragma Inline (Set_No_Strict_Aliasing);
9036   pragma Inline (Set_No_Tagged_Streams_Pragma);
9037   pragma Inline (Set_Non_Binary_Modulus);
9038   pragma Inline (Set_Non_Limited_View);
9039   pragma Inline (Set_Nonzero_Is_True);
9040   pragma Inline (Set_Normalized_First_Bit);
9041   pragma Inline (Set_Normalized_Position);
9042   pragma Inline (Set_Normalized_Position_Max);
9043   pragma Inline (Set_OK_To_Rename);
9044   pragma Inline (Set_OK_To_Reorder_Components);
9045   pragma Inline (Set_Optimize_Alignment_Space);
9046   pragma Inline (Set_Optimize_Alignment_Time);
9047   pragma Inline (Set_Original_Access_Type);
9048   pragma Inline (Set_Original_Array_Type);
9049   pragma Inline (Set_Original_Record_Component);
9050   pragma Inline (Set_Overlays_Constant);
9051   pragma Inline (Set_Overridden_Operation);
9052   pragma Inline (Set_Package_Instantiation);
9053   pragma Inline (Set_Packed_Array_Impl_Type);
9054   pragma Inline (Set_Parent_Subtype);
9055   pragma Inline (Set_Part_Of_Constituents);
9056   pragma Inline (Set_Part_Of_References);
9057   pragma Inline (Set_Partial_View_Has_Unknown_Discr);
9058   pragma Inline (Set_Pending_Access_Types);
9059   pragma Inline (Set_Postconditions_Proc);
9060   pragma Inline (Set_Prival);
9061   pragma Inline (Set_Prival_Link);
9062   pragma Inline (Set_Private_Dependents);
9063   pragma Inline (Set_Private_View);
9064   pragma Inline (Set_Protected_Body_Subprogram);
9065   pragma Inline (Set_Protected_Formal);
9066   pragma Inline (Set_Protection_Object);
9067   pragma Inline (Set_Reachable);
9068   pragma Inline (Set_Referenced);
9069   pragma Inline (Set_Referenced_As_LHS);
9070   pragma Inline (Set_Referenced_As_Out_Parameter);
9071   pragma Inline (Set_Refinement_Constituents);
9072   pragma Inline (Set_Register_Exception_Call);
9073   pragma Inline (Set_Related_Array_Object);
9074   pragma Inline (Set_Related_Expression);
9075   pragma Inline (Set_Related_Instance);
9076   pragma Inline (Set_Related_Type);
9077   pragma Inline (Set_Relative_Deadline_Variable);
9078   pragma Inline (Set_Renamed_Entity);
9079   pragma Inline (Set_Renamed_In_Spec);
9080   pragma Inline (Set_Renamed_Object);
9081   pragma Inline (Set_Renaming_Map);
9082   pragma Inline (Set_Requires_Overriding);
9083   pragma Inline (Set_Return_Applies_To);
9084   pragma Inline (Set_Return_Present);
9085   pragma Inline (Set_Returns_By_Ref);
9086   pragma Inline (Set_Returns_Limited_View);
9087   pragma Inline (Set_Reverse_Bit_Order);
9088   pragma Inline (Set_Reverse_Storage_Order);
9089   pragma Inline (Set_Rewritten_For_C);
9090   pragma Inline (Set_RM_Size);
9091   pragma Inline (Set_Scalar_Range);
9092   pragma Inline (Set_Scale_Value);
9093   pragma Inline (Set_Scope_Depth_Value);
9094   pragma Inline (Set_Sec_Stack_Needed_For_Return);
9095   pragma Inline (Set_Shadow_Entities);
9096   pragma Inline (Set_Shared_Var_Procs_Instance);
9097   pragma Inline (Set_Size_Check_Code);
9098   pragma Inline (Set_Size_Depends_On_Discriminant);
9099   pragma Inline (Set_Size_Known_At_Compile_Time);
9100   pragma Inline (Set_Small_Value);
9101   pragma Inline (Set_SPARK_Aux_Pragma);
9102   pragma Inline (Set_SPARK_Aux_Pragma_Inherited);
9103   pragma Inline (Set_SPARK_Pragma);
9104   pragma Inline (Set_SPARK_Pragma_Inherited);
9105   pragma Inline (Set_Spec_Entity);
9106   pragma Inline (Set_SSO_Set_High_By_Default);
9107   pragma Inline (Set_SSO_Set_Low_By_Default);
9108   pragma Inline (Set_Static_Discrete_Predicate);
9109   pragma Inline (Set_Static_Elaboration_Desired);
9110   pragma Inline (Set_Static_Initialization);
9111   pragma Inline (Set_Static_Real_Or_String_Predicate);
9112   pragma Inline (Set_Status_Flag_Or_Transient_Decl);
9113   pragma Inline (Set_Storage_Size_Variable);
9114   pragma Inline (Set_Stored_Constraint);
9115   pragma Inline (Set_Stores_Attribute_Old_Prefix);
9116   pragma Inline (Set_Strict_Alignment);
9117   pragma Inline (Set_String_Literal_Length);
9118   pragma Inline (Set_String_Literal_Low_Bound);
9119   pragma Inline (Set_Subprograms_For_Type);
9120   pragma Inline (Set_Subps_Index);
9121   pragma Inline (Set_Suppress_Elaboration_Warnings);
9122   pragma Inline (Set_Suppress_Initialization);
9123   pragma Inline (Set_Suppress_Style_Checks);
9124   pragma Inline (Set_Suppress_Value_Tracking_On_Call);
9125   pragma Inline (Set_Task_Body_Procedure);
9126   pragma Inline (Set_Thunk_Entity);
9127   pragma Inline (Set_Treat_As_Volatile);
9128   pragma Inline (Set_Underlying_Full_View);
9129   pragma Inline (Set_Underlying_Record_View);
9130   pragma Inline (Set_Universal_Aliasing);
9131   pragma Inline (Set_Unset_Reference);
9132   pragma Inline (Set_Used_As_Generic_Actual);
9133   pragma Inline (Set_Uses_Lock_Free);
9134   pragma Inline (Set_Uses_Sec_Stack);
9135   pragma Inline (Set_Warnings_Off);
9136   pragma Inline (Set_Warnings_Off_Used);
9137   pragma Inline (Set_Warnings_Off_Used_Unmodified);
9138   pragma Inline (Set_Warnings_Off_Used_Unreferenced);
9139   pragma Inline (Set_Was_Hidden);
9140   pragma Inline (Set_Wrapped_Entity);
9141
9142   --  END XEINFO INLINES
9143
9144   --  The following Inline pragmas are *not* read by xeinfo when building the
9145   --  C version of this interface automatically (so the C version will end up
9146   --  making out of line calls). The pragma scan in xeinfo will be terminated
9147   --  on encountering the END XEINFO INLINES line. We inline things here which
9148   --  are small, but not of the canonical attribute access/set format that can
9149   --  be handled by xeinfo.
9150
9151   pragma Inline (Base_Type);
9152   pragma Inline (Is_Base_Type);
9153   pragma Inline (Is_Controlled_Active);
9154   pragma Inline (Is_Package_Or_Generic_Package);
9155   pragma Inline (Is_Packed_Array);
9156   pragma Inline (Is_Subprogram_Or_Generic_Subprogram);
9157   pragma Inline (Is_Volatile);
9158   pragma Inline (Is_Wrapper_Package);
9159   pragma Inline (Known_RM_Size);
9160   pragma Inline (Known_Static_Component_Bit_Offset);
9161   pragma Inline (Known_Static_RM_Size);
9162   pragma Inline (Scope_Depth);
9163   pragma Inline (Scope_Depth_Set);
9164   pragma Inline (Unknown_RM_Size);
9165
9166end Einfo;
9167