1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT COMPILER COMPONENTS                         --
4--                                                                          --
5--                                E I N F O                                 --
6--                                                                          --
7--                                 S p e c                                  --
8--                                                                          --
9--          Copyright (C) 1992-2013, 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
51--  in tree nodes (i.e. fields not used by the parser, as defined by the
52--  Sinfo package specification), and accessed by means of a set of
53--  subprograms 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
86--  files einfo.ads and einfo.adb and produces the output file einfo.h.
87--  XEINFO is run automatically by the build scripts when you do a full
88--  bootstrap.
89
90--  In order for this utility program to operate correctly, the form of the
91--  einfo.ads and einfo.adb files must meet certain requirements and be laid
92--  out in a specific manner.
93
94--  The general form of einfo.ads is as follows:
95
96--     type declaration for type Entity_Kind
97--     subtype declarations declaring subranges of Entity_Kind
98--     subtype declarations declaring synonyms for some standard types
99--     function specs for attributes
100--     procedure specs
101--     pragma Inline declarations
102
103--  This order must be observed. There are no restrictions on the procedures,
104--  since the C header file only includes functions (Gigi is not allowed to
105--  modify the generated tree). However, functions are required to have headers
106--  that fit on a single line.
107
108--  XEINFO reads and processes the function specs and the pragma Inlines. For
109--  functions that are declared as inlined, XEINFO reads the corresponding body
110--  from einfo.adb, and processes it into C code. This results in some strict
111--  restrictions on which functions can be inlined:
112
113--     The function spec must be on a single line
114
115--     There can only be a single statement, contained on a single line,
116--     not counting any pragma Assert statements.
117
118--     This single statement must either be a function call with simple,
119--     single token arguments, or it must be a membership test of the form
120--     a in b, where a and b are single tokens.
121
122--  For functions that are not inlined, there is no restriction on the body,
123--  and XEINFO generates a direct reference in the C header file which allows
124--  the C code in Gigi to directly call the corresponding Ada body.
125
126----------------------------------
127-- Handling of Type'Size Values --
128----------------------------------
129
130--  The Ada 95 RM contains some rather peculiar (to us!) rules on the value
131--  of type'Size (see RM 13.3(55)). We have found that attempting to use
132--  these RM Size values generally, and in particular for determining the
133--  default size of objects, creates chaos, and major incompatibilities in
134--  existing code.
135
136--  We proceed as follows, for discrete and fixed-point subtypes, we have
137--  two separate sizes for each subtype:
138
139--    The Object_Size, which is used for determining the default size of
140--    objects and components. This size value can be referred to using the
141--    Object_Size attribute. The phrase "is used" here means that it is
142--    the basis of the determination of the size. The backend is free to
143--    pad this up if necessary for efficiency, e.g. an 8-bit stand-alone
144--    character might be stored in 32 bits on a machine with no efficient
145--    byte access instructions such as the Alpha.
146
147--    The default rules for the value of Object_Size for fixed-point and
148--    discrete types are as follows:
149
150--       The Object_Size for base subtypes reflect the natural hardware
151--       size in bits (see Ttypes and Cstand for integer types). For
152--       enumeration and fixed-point base subtypes have 8. 16. 32 or 64
153--       bits for this size, depending on the range of values to be stored.
154
155--       The Object_Size of a subtype is the same as the Object_Size of
156--       the subtype from which it is obtained.
157
158--       The Object_Size of a derived base type is copied from the parent
159--       base type, and the Object_Size of a derived first subtype is copied
160--       from the parent first subtype.
161
162--    The Value_Size which is the number of bits required to store a value
163--    of the type. This size can be referred to using the Value_Size
164--    attribute. This value is used to determine how tightly to pack
165--    records or arrays with components of this type, and also affects
166--    the semantics of unchecked conversion (unchecked conversions where
167--    the Value_Size values differ generate a warning, and are potentially
168--    target dependent).
169
170--    The default rule for the value of Value_Size are as follows:
171
172--       The Value_Size for a base subtype is the minimum number of bits
173--       required to store all values of the type (including the sign bit
174--       only if negative values are possible).
175
176--       If a subtype statically matches the first subtype, then it has
177--       by default the same Value_Size as the first subtype. This is a
178--       consequence of RM 13.1(14) ("if two subtypes statically match,
179--       then their subtype-specific aspects are the same".)
180
181--       All other subtypes have a Value_Size corresponding to the minimum
182--       number of bits required to store all values of the subtype. For
183--       dynamic bounds, it is assumed that the value can range down or up
184--       to the corresponding bound of the ancestor
185
186--    The RM defined attribute Size corresponds to the Value_Size attribute
187
188--    The Size attribute may be defined for a first-named subtype. This sets
189--    the Value_Size of the first-named subtype to the given value, and the
190--    Object_Size of this first-named subtype to the given value padded up
191--    to an appropriate boundary. It is a consequence of the default rules
192--    above that this Object_Size will apply to all further subtypes. On the
193--    other hand, Value_Size is affected only for the first subtype, any
194--    dynamic subtypes obtained from it directly, and any statically matching
195--    subtypes. The Value_Size of any other static subtypes is not affected.
196
197--    Value_Size and Object_Size may be explicitly set for any subtype using
198--    an attribute definition clause. Note that the use of these attributes
199--    can cause the RM 13.1(14) rule to be violated. If two access types
200--    reference aliased objects whose subtypes have differing Object_Size
201--    values as a result of explicit attribute definition clauses, then it
202--    is erroneous to convert from one access subtype to the other.
203
204--    At the implementation level, Esize stores the Object_Size and the
205--    RM_Size field stores the Value_Size (and hence the value of the
206--    Size attribute, which, as noted above, is equivalent to Value_Size).
207
208--  To get a feel for the difference, consider the following examples (note
209--  that in each case the base is short_short_integer with a size of 8):
210
211--                                            Object_Size     Value_Size
212
213--     type x1 is range 0..5;                      8               3
214
215--     type x2 is range 0..5;
216--     for x2'size use 12;                        16              12
217
218--     subtype x3 is x2 range 0 .. 3;             16               2
219
220--     subtype x4 is x2'base range 0 .. 10;        8               4
221
222--     subtype x5 is x2 range 0 .. dynamic;       16              (7)
223
224--     subtype x6 is x2'base range 0 .. dynamic;   8              (7)
225
226--  Note: the entries marked (7) are not actually specified by the Ada 95 RM,
227--  but it seems in the spirit of the RM rules to allocate the minimum number
228--  of bits known to be large enough to hold the given range of values.
229
230--  So far, so good, but GNAT has to obey the RM rules, so the question is
231--  under what conditions must the RM Size be used. The following is a list
232--  of the occasions on which the RM Size must be used:
233
234--    Component size for packed arrays or records
235--    Value of the attribute Size for a type
236--    Warning about sizes not matching for unchecked conversion
237
238--  The RM_Size field keeps track of the RM Size as needed in these
239--  three situations.
240
241--  For elementary types other than discrete and fixed-point types, the
242--  Object_Size and Value_Size are the same (and equivalent to the RM
243--  attribute Size). Only Size may be specified for such types.
244
245--  For composite types, Object_Size and Value_Size are computed from their
246--  respective value for the type of each element as well as the layout.
247
248--  All size attributes are stored as Uint values. Negative values are used to
249--  reference GCC expressions for the case of non-static sizes, as explained
250--  in Repinfo.
251
252--------------------------------------
253-- Delayed Freezing and Elaboration --
254--------------------------------------
255
256--  The flag Has_Delayed_Freeze indicates that an entity carries an explicit
257--  freeze node, which appears later in the expanded tree.
258
259--  a) The flag is used by the front-end to trigger expansion actions which
260--  include the generation of that freeze node. Typically this happens at the
261--  end of the current compilation unit, or before the first subprogram body is
262--  encountered in the current unit. See files freeze and exp_ch13 for details
263--  on the actions triggered by a freeze node, which include the construction
264--  of initialization procedures and dispatch tables.
265
266--  b) The presence of a freeze node on an entity is used by the backend to
267--  defer elaboration of the entity until its freeze node is seen. In the
268--  absence of an explicit freeze node, an entity is frozen (and elaborated)
269--  at the point of declaration.
270
271--  For object declarations, the flag is set when an address clause for the
272--  object is encountered. Legality checks on the address expression only take
273--  place at the freeze point of the object.
274
275--  Most types have an explicit freeze node, because they cannot be elaborated
276--  until all representation and operational items that apply to them have been
277--  analyzed. Private types and incomplete types have the flag set as well, as
278--  do task and protected types.
279
280--  Implicit base types created for type derivations, as well as classwide
281--  types created for all tagged types, have the flag set.
282
283--  If a subprogram has an access parameter whose designated type is incomplete
284--  the subprogram has the flag set.
285
286-----------------------
287-- Entity Attributes --
288-----------------------
289
290--  This section contains a complete list of the attributes that are defined
291--  on entities. Some attributes apply to all entities, others only to certain
292--  kinds of entities. In the latter case the attribute should only be set or
293--  accessed if the Ekind field indicates an appropriate entity.
294
295--  There are two kinds of attributes that apply to entities, stored and
296--  synthesized. Stored attributes correspond to a field or flag in the entity
297--  itself. Such attributes are identified in the table below by giving the
298--  field or flag in the attribute that is used to hold the attribute value.
299--  Synthesized attributes are not stored directly, but are rather computed as
300--  needed from other attributes, or from information in the tree. These are
301--  marked "synthesized" in the table below. The stored attributes have both
302--  access functions and set procedures to set the corresponding values, while
303--  synthesized attributes have only access functions.
304
305--  Note: in the case of Node, Uint, or Elist fields, there are cases where
306--  the same physical field is used for different purposes in different
307--  entities, so these access functions should only be referenced for the
308--  class of entities in which they are defined as being present. Flags are
309--  not overlapped in this way, but nevertheless as a matter of style and
310--  abstraction (which may or may not be checked by assertions in the body),
311--  this restriction should be observed for flag fields as well.
312
313--  Note: certain of the attributes on types apply only to base types, and
314--  are so noted by the notation [base type only]. These are cases where the
315--  attribute of any subtype is the same as the attribute of the base type.
316--  The attribute can be referenced on a subtype (and automatically retrieves
317--  the value from the base type). However, it is an error to try to set the
318--  attribute on other than the base type, and if assertions are enabled,
319--  an attempt to set the attribute on a subtype will raise an assert error.
320
321--  Other attributes are noted as applying to the [implementation base type
322--  only].  These are representation attributes which must always apply to a
323--  full non-private type, and where the attributes are always on the full
324--  type.  The attribute can be referenced on a subtype (and automatically
325--  retries the value from the implementation base type). However, it is an
326--  error to try to set the attribute on other than the implementation base
327--  type, and if assertions are enabled, an attempt to set the attribute on a
328--  subtype will raise an assert error.
329
330--    Abstract_States (Elist25)
331--       Defined for E_Package entities. Contains a list of all the abstract
332--       states declared by the related package.
333
334--    Accept_Address (Elist21)
335--       Defined in entries. If an accept has a statement sequence, then an
336--       address variable is created, which is used to hold the address of the
337--       parameters, as passed by the runtime. Accept_Address holds an element
338--       list which represents a stack of entities for these address variables.
339--       The current entry is the top of the stack, which is the last element
340--       on the list. A stack is required to handle the case of nested select
341--       statements referencing the same entry.
342
343--    Access_Disp_Table (Elist16) [implementation base type only]
344--       Defined in E_Record_Type and E_Record_Subtype entities. Set in tagged
345--       types to point to their dispatch tables. The first two entities are
346--       associated with the primary dispatch table: 1) primary dispatch table
347--       with user-defined primitives 2) primary dispatch table with predefined
348--       primitives. For each interface type covered by the tagged type we also
349--       have: 3) secondary dispatch table with thunks of primitives covering
350--       user-defined interface primitives, 4) secondary dispatch table with
351--       thunks of predefined primitives, 5) secondary dispatch table with user
352--       defined primitives, and 6) secondary dispatch table with predefined
353--       primitives. The last entity of this list is an access type declaration
354--       used to expand dispatching calls through the primary dispatch table.
355--       For a non-tagged record, contains No_Elist.
356
357--    Actual_Subtype (Node17)
358--       Defined in variables, constants, and formal parameters. This is the
359--       subtype imposed by the value of the object, as opposed to its nominal
360--       subtype, which is imposed by the declaration. The actual subtype
361--       differs from the nominal one when the latter is indefinite (as in the
362--       case of an unconstrained formal parameter, or a variable declared
363--       with an unconstrained type and an initial value). The nominal subtype
364--       is the Etype entry for the entity. The Actual_Subtype field is set
365--       only if the actual subtype differs from the nominal subtype. If the
366--       actual and nominal subtypes are the same, then the Actual_Subtype
367--       field is Empty, and Etype indicates both types.
368--
369--       For objects, the Actual_Subtype is set only if this is a discriminated
370--       type. For arrays, the bounds of the expression are obtained and the
371--       Etype of the object is directly the constrained subtype. This is
372--       rather irregular, and the semantic checks that depend on the nominal
373--       subtype being unconstrained use flag Is_Constr_Subt_For_U_Nominal(qv).
374
375--    Address_Clause (synthesized)
376--       Applies to entries, objects and subprograms. Set if an address clause
377--       is present which references the object or subprogram and points to
378--       the N_Attribute_Definition_Clause node. Empty if no Address clause.
379--       The expression in the address clause is always a constant that is
380--       defined before the entity to which the address clause applies.
381--       Note: Gigi references this field in E_Task_Type entities???
382
383--    Address_Taken (Flag104)
384--       Defined in all entities. Set if the Address or Unrestricted_Access
385--       attribute is applied directly to the entity, i.e. the entity is the
386--       entity of the prefix of the attribute reference. Also set if the
387--       entity is the second argument of an Asm_Input or Asm_Output attribute,
388--       as the construct may entail taking its address. Used by Gigi to make
389--       sure that the address can be meaningfully taken, and also in the case
390--       of subprograms to control output of certain warnings.
391
392--    Aft_Value (synthesized)
393--       Applies to fixed and decimal types. Computes a universal integer
394--       that holds value of the Aft attribute for the type.
395
396--    Alias (Node18)
397--       Defined in overloadable entities (literals, subprograms, entries) and
398--       subprograms that cover a primitive operation of an abstract interface
399--       (that is, subprograms with the Interface_Alias attribute). In case of
400--       overloaded entities it points to the parent subprogram of a derived
401--       subprogram. In case of abstract interface subprograms it points to the
402--       subprogram that covers the abstract interface primitive. Also used for
403--       a subprogram renaming, where it points to the renamed subprogram. For
404--       an inherited operation (of a type extension) that is overridden in a
405--       private part, the Alias is the overriding operation. In this fashion a
406--       call from outside the package ends up executing the new body even if
407--       non-dispatching, and a call from inside calls the overriding operation
408--       because it hides the implicit one. Alias is always empty for entries.
409
410--    Alignment (Uint14)
411--       Defined in entities for types and also in constants, variables
412--       (including exceptions where it refers to the static data allocated for
413--       an exception), loop parameters, and formal parameters. This indicates
414--       the desired alignment for a type, or the actual alignment for an
415--       object. A value of zero (Uint_0) indicates that the alignment has not
416--       been set yet. The alignment can be set by an explicit alignment
417--       clause, or set by the front-end in package Layout, or set by the
418--       back-end as part of the back end back-annotation process. The
419--       alignment field is also defined in E_Exception entities, but there it
420--       is used only by the back-end for back annotation.
421
422--    Alignment_Clause (synthesized)
423--       Applies to all entities for types and objects. If an alignment
424--       attribute definition clause is present for the entity, then this
425--       function returns the N_Attribute_Definition clause that specifies the
426--       alignment. If no alignment clause applies to the type, then the call
427--       to this function returns Empty. Note that the call can return a
428--       non-Empty value even if Has_Alignment_Clause is not set (happens with
429--       subtype and derived type declarations). Note also that a record
430--       definition clause with an (obsolescent) mod clause is converted
431--       into an attribute definition clause for this purpose.
432
433--    Associated_Formal_Package (Node12)
434--       Defined in packages that are the actuals of formal_packages. Points
435--       to the entity in the declaration for the formal package.
436
437--    Associated_Node_For_Itype (Node8)
438--       Defined in all type and subtype entities. Set non-Empty only for
439--       Itypes. Set to point to the associated node for the Itype, i.e.
440--       the node whose elaboration generated the Itype. This is used for
441--       copying trees, to determine whether or not to copy an Itype, and
442--       also for accessibility checks on anonymous access types. This
443--       node is typically an object declaration, component declaration,
444--       type or subtype declaration. For an access discriminant in a type
445--       declaration, the associated_node_for_itype is the discriminant
446--       specification. For an access parameter it is the enclosing subprogram
447--       declaration.
448--
449--       Itypes have no explicit declaration, and therefore are not attached to
450--       the tree: their Parent field is always empty. The Associated_Node_For_
451--       Itype is the only way to determine the construct that leads to the
452--       creation of a given itype entity.
453
454--    Associated_Storage_Pool (Node22) [root type only]
455--       Defined in simple and general access type entities. References the
456--       storage pool to be used for the corresponding collection. A value of
457--       Empty means that the default pool is to be used. This is defined
458--       only in the root type, since derived types must have the same pool
459--       as the parent type.
460
461--    Barrier_Function (Node12)
462--       Defined in protected entries and entry families. This is the
463--       subprogram declaration for the body of the function that returns
464--       the value of the entry barrier.
465
466--    Base_Type (synthesized)
467--       Applies to all type and subtype entities. Returns the base type of a
468--       type or subtype. The base type of a type is the type itself. The base
469--       type of a subtype is the type that it constrains (which is always
470--       a type entity, not some other subtype). Note that in the case of a
471--       subtype of a private type, it is possible for the base type attribute
472--       to return a private type, even if the subtype to which it applies is
473--       non-private. See also Implementation_Base_Type. Note: it is allowed to
474--       apply Base_Type to other than a type, in which case it simply returns
475--       the entity unchanged.
476
477--    Block_Node (Node11)
478--       Defined in block entities. Points to the identifier in the
479--       Block_Statement itself. Used when retrieving the block construct
480--       for finalization purposes, The block entity has an implicit label
481--       declaration in the enclosing declarative part, and has otherwise
482--       no direct connection in the tree with the block statement. The
483--       link is to the identifier (which is an occurrence of the entity)
484--       and not to the block_statement itself, because the statement may
485--       be rewritten, e.g. in the process of removing dead code.
486
487--    Body_Entity (Node19)
488--       Defined in package and generic package entities, points to the
489--       corresponding package body entity if one is present.
490
491--    Body_Needed_For_SAL (Flag40)
492--       Defined in package and subprogram entities that are compilation
493--       units. Indicates that the source for the body must be included
494--       when the unit is part of a standalone library.
495
496--    C_Pass_By_Copy (Flag125) [implementation base type only]
497--       Defined in record types. Set if a pragma Convention for the record
498--       type specifies convention C_Pass_By_Copy. This convention name is
499--       treated as identical in all respects to convention C, except that
500--       if it is specified for a record type, then the C_Pass_By_Copy flag
501--       is set, and if a foreign convention subprogram has a formal of the
502--       corresponding type, then the parameter passing mechanism will be
503--       set to By_Copy (unless specifically overridden by an Import or
504--       Export pragma).
505
506--    Can_Never_Be_Null (Flag38)
507--       This flag is defined in all entities, but can only be set in an object
508--       which can never have a null value. This is set True for constant
509--       access values initialized to a non-null value. This is also True for
510--       all access parameters in Ada 83 and Ada 95 modes, and for access
511--       parameters that explicitly exclude null in Ada 2005.
512--
513--       This is used to avoid unnecessary resetting of the Is_Known_Non_Null
514--       flag for such entities. In Ada 2005 mode, this is also used when
515--       determining subtype conformance of subprogram profiles to ensure
516--       that two formals have the same null-exclusion status.
517--
518--       ??? This is also set on some access types, eg the Etype of the
519--       anonymous access type of a controlling formal.
520
521--    Can_Use_Internal_Rep (Flag229) [base type only]
522--       Defined in Access_Subprogram_Kind nodes. This flag is set by the
523--       front end and used by the back end. False means that the back end
524--       must represent the type in the same way as Convention-C types (and
525--       other foreign-convention types). On many targets, this means that
526--       the back end will use dynamically generated trampolines for nested
527--       subprograms. True means that the back end can represent the type in
528--       some internal way. On the aforementioned targets, this means that the
529--       back end will not use dynamically generated trampolines. This flag
530--       must be False if Has_Foreign_Convention is True; otherwise, the front
531--       end is free to set the policy.
532--
533--       Setting this False in all cases corresponds to the traditional back
534--       end strategy, where all access-to-subprogram types are represented the
535--       same way, independent of the Convention. For further details, see also
536--       Always_Compatible_Rep in Targparm.
537--
538--       Efficiency note: On targets that use dynamically generated
539--       trampolines, False generally favors efficiency of top-level
540--       subprograms, whereas True generally favors efficiency of nested
541--       ones. On other targets, this flag has little or no effect on
542--       efficiency. The front end should take this into account. In
543--       particular, pragma Favor_Top_Level gives a hint that the flag
544--       should be False.
545--
546--       Note: We considered using Convention-C for this purpose, but we need
547--       this separate flag, because Convention-C implies that in the case of
548--       P'[Unrestricted_]Access, P also have convention C. Sometimes we want
549--       to have Can_Use_Internal_Rep False for an access type, but allow P to
550--       have convention Ada.
551
552--    Chars (Name1)
553--       Defined in all entities. This field contains an entry into the names
554--       table that has the character string of the identifier, character
555--       literal or operator symbol. See Namet for further details. Note that
556--       throughout the processing of the front end, this name is the simple
557--       unqualified name. However, just before gigi is called, a call is made
558--       to Qualify_All_Entity_Names. This causes entity names to be qualified
559--       using the encoding described in exp_dbug.ads, and from that point on
560--       (including post gigi steps such as cross-reference generation), the
561--       entities will contain the encoded qualified names.
562
563--    Checks_May_Be_Suppressed (Flag31)
564--       Defined in all entities. Set if a pragma Suppress or Unsuppress
565--       mentions the entity specifically in the second argument. If this
566--       flag is set the Global_Entity_Suppress and Local_Entity_Suppress
567--       tables must be consulted to determine if there actually is an active
568--       Suppress or Unsuppress pragma that applies to the entity.
569
570--    Class_Wide_Type (Node9)
571--       Defined in all type entities. For a tagged type or subtype, returns
572--       the corresponding implicitly declared class-wide type. For a
573--       class-wide type, returns itself. Set to Empty for non-tagged types.
574
575--    Cloned_Subtype (Node16)
576--       Defined in E_Record_Subtype and E_Class_Wide_Subtype entities.
577--       Each such entity can either have a Discriminant_Constraint, in
578--       which case it represents a distinct type from the base type (and
579--       will have a list of components and discrimants in the list headed by
580--       First_Entity) or else no such constraint, in which case it will be a
581--       copy of the base type.
582--
583--       o  Each element of the list in First_Entity is copied from the base
584--          type; in that case, this field is Empty.
585--
586--       o  The list in First_Entity is shared with the base type; in that
587--          case, this field points to that entity.
588--
589--       A record or classwide subtype may also be a copy of some other
590--       subtype and share the entities in the First_Entity with that subtype.
591--       In that case, this field points to that subtype.
592--
593--       For E_Class_Wide_Subtype, the presence of Equivalent_Type overrides
594--       this field. Note that this field ONLY appears in subtype entries, not
595--       in type entries, it is not defined, and it is an error to reference
596--       Cloned_Subtype in an E_Record_Type or E_Class_Wide_Type entity.
597
598--    Comes_From_Source
599--       This flag appears on all nodes, including entities, and indicates
600--       that the node was created by the scanner or parser from the original
601--       source. Thus for entities, it indicates that the entity is defined
602--       in the original source program.
603
604--    Component_Alignment (special field) [base type only]
605--       Defined in array and record entities. Contains a value of type
606--       Component_Alignment_Kind indicating the alignment of components.
607--       Set to Calign_Default normally, but can be overridden by use of
608--       the Component_Alignment pragma. Note: this field is currently
609--       stored in a non-standard way, see body for details.
610
611--    Component_Bit_Offset (Uint11)
612--       Defined in record components (E_Component, E_Discriminant) if a
613--       component clause applies to the component. First bit position of
614--       given component, computed from the first bit and position values
615--       given in the component clause. A value of No_Uint means that the
616--       value is not yet known. The value can be set by the appearance of
617--       an explicit component clause in a record representation clause,
618--       or it can be set by the front-end in package Layout, or it can be
619--       set by the backend. By the time backend processing is completed,
620--       this field is always set. A negative value is used to represent
621--       a value which is not known at compile time, and must be computed
622--       at run-time (this happens if fields of a record have variable
623--       lengths). See package Layout for details of these values.
624--
625--       Note: Component_Bit_Offset is redundant with respect to the fields
626--       Normalized_First_Bit and Normalized_Position, and could in principle
627--       be eliminated, but it is convenient in several situations, including
628--       use in Gigi, to have this redundant field.
629
630--    Component_Clause (Node13)
631--       Defined in record components and discriminants. If a record
632--       representation clause is present for the corresponding record type a
633--       that specifies a position for the component, then the Component_Clause
634--       field of the E_Component entity points to the N_Component_Clause node.
635--       Set to Empty if no record representation clause was present, or if
636--       there was no specification for this component.
637
638--    Component_Size (Uint22) [implementation base type only]
639--       Defined in array types. It contains the component size value for
640--       the array. A value of No_Uint means that the value is not yet set.
641--       The value can be set by the use of a component size clause, or
642--       by the front end in package Layout, or by the backend. A negative
643--       value is used to represent a value which is not known at compile
644--       time, and must be computed at run-time (this happens if the type
645--       of the component has a variable length size). See package Layout
646--       for details of these values.
647
648--    Component_Type (Node20) [implementation base type only]
649--       Defined in array types and string types. References component type.
650
651--    Corresponding_Concurrent_Type (Node18)
652--       Defined in record types that are constructed by the expander to
653--       represent task and protected types (Is_Concurrent_Record_Type flag
654--       set True). Points to the entity for the corresponding task type or
655--       protected type.
656
657--    Corresponding_Discriminant (Node19)
658--       Defined in discriminants of a derived type, when the discriminant is
659--       used to constrain a discriminant of the parent type. Points to the
660--       corresponding discriminant in the parent type. Otherwise it is Empty.
661
662--    Corresponding_Equality (Node30)
663--       Defined in function entities for implicit inequality operators.
664--       Denotes the explicit or derived equality operation that creates
665--       the implicit inequality. Note that this field is not present in
666--       other function entities, only in implicit inequality routines,
667--       where Comes_From_Source is always False.
668
669--    Corresponding_Protected_Entry (Node18)
670--       Defined in subprogram bodies. Set for subprogram bodies that implement
671--       a protected type entry to point to the entity for the entry.
672
673--    Corresponding_Record_Type (Node18)
674--       Defined in protected and task types and subtypes. References the
675--       entity for the corresponding record type constructed by the expander
676--       (see Exp_Ch9). This type is used to represent values of the task type.
677
678--    Corresponding_Remote_Type (Node22)
679--       Defined in record types that describe the fat pointer structure for
680--       Remote_Access_To_Subprogram types. References the original access
681--       type.
682
683--    CR_Discriminant (Node23)
684--       Defined in discriminants of concurrent types. Denotes the homologous
685--       discriminant of the corresponding record type. The CR_Discriminant is
686--       created at the same time as the discriminal, and used to replace
687--       occurrences of the discriminant within the type declaration.
688
689--    Current_Use_Clause (Node27)
690--       Defined in packages and in types. For packages, denotes the use
691--       package clause currently in scope that makes the package use_visible.
692--       For types, it denotes the use_type clause that makes the operators of
693--       the type visible. Used for more precise warning messages on redundant
694--       use clauses.
695
696--    Current_Value (Node9)
697--       Defined in all object entities. Set in E_Variable, E_Constant, formal
698--       parameters and E_Loop_Parameter entities if we have trackable current
699--       values. Set non-Empty if the (constant) current value of the variable
700--       is known, This value is valid only for references from the same
701--       sequential scope as the entity. The sequential scope of an entity
702--       includes the immediate scope and any contained scopes that are package
703--       specs, package bodies, blocks (at any nesting level) or statement
704--       sequences in IF or loop statements.
705--
706--       Another related use of this field is to record information about the
707--       value obtained from an IF or WHILE statement condition. If the IF or
708--       ELSIF or WHILE condition has the form "NOT {,NOT] OBJ RELOP VAL ",
709--       or OBJ [AND [THEN]] expr, where OBJ refers to an entity with a
710--       Current_Value field, RELOP is one of the six relational operators, and
711--       VAL is a compile-time known value then the Current_Value field of OBJ
712--       points to the N_If_Statement, N_Elsif_Part, or N_Iteration_Scheme node
713--       of the relevant construct, and the Condition field of this can be
714--       consulted to give information about the value of OBJ. For more details
715--       on this usage, see the procedure Exp_Util.Get_Current_Value_Condition.
716
717--    Debug_Info_Off (Flag166)
718--       Defined in all entities. Set if a pragma Suppress_Debug_Info applies
719--       to the entity, or if internal processing in the compiler determines
720--       that suppression of debug information is desirable. Note that this
721--       flag is only for use by the front end as part of the processing for
722--       determining if Needs_Debug_Info should be set. The back end should
723--       always test Needs_Debug_Info, it should never test Debug_Info_Off.
724
725--    Debug_Renaming_Link (Node25)
726--       Used to link the variable associated with a debug renaming declaration
727--       to the renamed entity. See Exp_Dbug.Debug_Renaming_Declaration for
728--       details of the use of this field.
729
730--    Declaration_Node (synthesized)
731--       Applies to all entities. Returns the tree node for the construct that
732--       declared the entity. Normally this is just the Parent of the entity.
733--       One exception arises with child units, where the parent of the entity
734--       is a selected component/defining program unit name. Another exception
735--       is that if the entity is an incomplete type that has been completed or
736--       a private type, then we obtain the declaration node denoted by the
737--       full type, i.e. the full type declaration node. Also note that for
738--       subprograms, this returns the {function,procedure}_specification, not
739--       the subprogram_declaration.
740
741--    Default_Aspect_Component_Value (Node19)
742--       Defined in array types. Holds the static value specified in a
743--       default_component_value aspect specification for the array type.
744
745--    Default_Aspect_Value (Node19)
746--       Defined in scalar types. Holds the static value specified in a
747--       default_value aspect specification for the type.
748
749--    Default_Expr_Function (Node21)
750--       Defined in parameters. It holds the entity of the parameterless
751--       function that is built to evaluate the default expression if it is
752--       more complex than a simple identifier or literal. For the latter
753--       simple cases or if there is no default value, this field is Empty.
754
755--    Default_Expressions_Processed (Flag108)
756--       A flag in subprograms (functions, operators, procedures) and in
757--       entries and entry families used to indicate that default expressions
758--       have been processed and to avoid multiple calls to process the
759--       default expressions (see Freeze.Process_Default_Expressions), which
760--       would not only waste time, but also generate false error messages.
761
762--    Default_Value (Node20)
763--       Defined in formal parameters. Points to the node representing the
764--       expression for the default value for the parameter. Empty if the
765--       parameter has no default value (which is always the case for OUT
766--       and IN OUT parameters in the absence of errors).
767
768--    Delay_Cleanups (Flag114)
769--       Defined in entities that have finalization lists (subprograms
770--       blocks, and tasks). Set if there are pending generic body
771--       instantiations for the corresponding entity. If this flag is
772--       set, then generation of cleanup actions for the corresponding
773--       entity must be delayed, since the insertion of the generic body
774--       may affect cleanup generation (see Inline for further details).
775
776--    Delay_Subprogram_Descriptors (Flag50)
777--       Defined in entities for which exception subprogram descriptors
778--       are generated (subprograms, package declarations and package
779--       bodies). Defined if there are pending generic body instantiations
780--       for the corresponding entity. If this flag is set, then generation
781--       of the subprogram descriptor for the corresponding enities must
782--       be delayed, since the insertion of the generic body may add entries
783--       to the list of handlers.
784--
785--       Note: for subprograms, Delay_Subprogram_Descriptors is set if and
786--       only if Delay_Cleanups is set. But Delay_Cleanups can be set for a
787--       a block (in which case Delay_Subprogram_Descriptors is set for the
788--       containing subprogram). In addition Delay_Subprogram_Descriptors is
789--       set for a library level package declaration or body which contains
790--       delayed instantiations (in this case the descriptor refers to the
791--       enclosing elaboration procedure).
792
793--    Delta_Value (Ureal18)
794--       Defined in fixed and decimal types. Points to a universal real
795--       that holds value of delta for the type, as given in the declaration
796--       or as inherited by a subtype or derived type.
797
798--    Dependent_Instances (Elist8)
799--       Defined in packages that are instances. Holds list of instances
800--       of inner generics. Used to place freeze nodes for those instances
801--       after that of the current one, i.e. after the corresponding generic
802--       bodies.
803
804--    Depends_On_Private (Flag14)
805--       Defined in all type entities. Set if the type is private or if it
806--       depends on a private type.
807
808--    Designated_Type (synthesized)
809--       Applies to access types. Returns the designated type. Differs
810--       from Directly_Designated_Type in that if the access type refers
811--       to an incomplete type, and the full type is available, then this
812--       full type is returned instead of the incomplete type.
813
814--    Digits_Value (Uint17)
815--       Defined in floating point types and subtypes and decimal types and
816--       subtypes. Contains the Digits value specified in the declaration.
817
818--    Direct_Primitive_Operations (Elist10)
819--       Defined in tagged types and subtypes (including synchronized types),
820--       in tagged private types and in tagged incomplete types. Element list
821--       of entities for primitive operations of the tagged type. Not defined
822--       in untagged types. In order to follow the C++ ABI, entities of
823--       primitives that come from source must be stored in this list in the
824--       order of their occurrence in the sources. For incomplete types the
825--       list is always empty.
826
827--    Directly_Designated_Type (Node20)
828--       Defined in access types. This field points to the type that is
829--       directly designated by the access type. In the case of an access
830--       type to an incomplete type, this field references the incomplete
831--       type. Directly_Designated_Type is typically used in implementing the
832--       static semantics of the language; in implementing dynamic semantics,
833--       we typically want the full view of the designated type. The function
834--       Designated_Type obtains this full type in the case of access to an
835--       incomplete type.
836
837--    Discard_Names (Flag88)
838--       Defined in types and exception entities. Set if pragma Discard_Names
839--       applies to the entity. It is also set for declarative regions and
840--       package specs for which a Discard_Names pragma with zero arguments
841--       has been encountered. The purpose of setting this flag is to be able
842--       to set the Discard_Names attribute on enumeration types declared
843--       after the pragma within the same declarative region. This flag is
844--       set to False if a Keep_Names pragma appears for an enumeration type.
845
846--    Discriminal (Node17)
847--       Defined in discriminants (Discriminant formal: GNAT's first
848--       coinage). The entity used as a formal parameter that corresponds
849--       to a discriminant. See section "Handling of Discriminants" for
850--       full details of the use of discriminals.
851
852--    Discriminal_Link (Node10)
853--       Defined in E_In_Parameter or E_Constant entities. For discriminals,
854--       points back to corresponding discriminant. For other entities, must
855--       remain Empty.
856
857--    Discriminant_Checking_Func (Node20)
858--       Defined in components. Points to the defining identifier of the
859--       function built by the expander returns a Boolean indicating whether
860--       the given record component exists for the current discriminant
861--       values.
862
863--    Discriminant_Constraint (Elist21)
864--       Defined in entities whose Has_Discriminants flag is set (concurrent
865--       types, subtypes, record types and subtypes, private types and
866--       subtypes, limited private types and subtypes and incomplete types).
867--       It is an error to reference the Discriminant_Constraint field if
868--       Has_Discriminants is False.
869--
870--       If the Is_Constrained flag is set, Discriminant_Constraint points
871--       to an element list containing the discriminant constraints in the
872--       same order in which the discriminants are declared.
873--
874--       If the Is_Constrained flag is not set but the discriminants of the
875--       unconstrained type have default initial values then this field
876--       points to an element list giving these default initial values in
877--       the same order in which the discriminants are declared. Note that
878--       in this case the entity cannot be a tagged record type, because
879--       discriminants in this case cannot have defaults.
880--
881--       If the entity is a tagged record implicit type, then this field is
882--       inherited from the first subtype (so that the itype is subtype
883--       conformant with its first subtype, which is needed when the first
884--       subtype overrides primitive operations inherited by the implicit
885--       base type).
886--
887--       In all other cases Discriminant_Constraint contains the empty
888--       Elist (ie it is initialized with a call to New_Elmt_List).
889
890--    Discriminant_Default_Value (Node20)
891--       Defined in discriminants. Points to the node representing the
892--       expression for the default value of the discriminant. Set to
893--       Empty if the discriminant has no default value.
894
895--    Discriminant_Number (Uint15)
896--       Defined in discriminants. Gives the ranking of a discriminant in
897--       the list of discriminants of the type, i.e. a sequential integer
898--       index starting at 1 and ranging up to number of discriminants.
899
900--    Dispatch_Table_Wrappers (Elist26) [implementation base type only]
901--       Defined in E_Record_Type and E_Record_Subtype entities. Set in library
902--       level tagged type entities if we are generating statically allocated
903--       dispatch tables. Points to the list of dispatch table wrappers
904--       associated with the tagged type. For a non-tagged record, contains
905--       No_Elist.
906
907--    DTC_Entity (Node16)
908--       Defined in function and procedure entities. Set to Empty unless
909--       the subprogram is dispatching in which case it references the
910--       Dispatch Table pointer Component. For regular Ada tagged this, this
911--       is the _Tag component. For CPP_Class types and their descendants,
912--       this points to the component entity in the record that holds the
913--       Vtable pointer for the Vtable containing the entry referencing the
914--       subprogram.
915
916--    DT_Entry_Count (Uint15)
917--       Defined in E_Component entities. Only used for component marked
918--       Is_Tag. Store the number of entries in the Vtable (or Dispatch Table)
919
920--    DT_Offset_To_Top_Func (Node25)
921--       Defined in E_Component entities. Only used for component marked
922--       Is_Tag. If present it stores the Offset_To_Top function used to
923--       provide this value in tagged types whose ancestor has discriminants.
924
925--    DT_Position (Uint15)
926--       Defined in function and procedure entities which are dispatching
927--       (should not be referenced without first checking that flag
928--       Is_Dispatching_Operation is True). Contains the offset into
929--       the Vtable for the entry that references the subprogram.
930
931--    Ekind (Ekind)
932--       Defined in all entities. Contains a value of the enumeration type
933--       Entity_Kind declared in a subsequent section in this spec.
934
935--    Elaborate_Body_Desirable (Flag210)
936--       Defined in package entities. Set if the elaboration circuitry detects
937--       a case where there is a package body that modifies one or more visible
938--       entities in the package spec and there is no explicit Elaborate_Body
939--       pragma for the package. This information is passed on to the binder,
940--       which attempts, but does not promise, to elaborate the body as close
941--       to the spec as possible.
942
943--    Elaboration_Entity (Node13)
944--       Defined in generic and non-generic package and subprogram entities.
945--       This is a counter associated with the unit that is initially set to
946--       zero, is incremented when an elaboration request for the unit is
947--       made, and is decremented when a finalization request for the unit
948--       is made. This is used for three purposes. First, it is used to
949--       implement access before elaboration checks (the counter must be
950--       non-zero to call a subprogram at elaboration time). Second, it is
951--       used to guard against repeated execution of the elaboration code.
952--       Third, it is used to ensure that the finalization code is executed
953--       only after all clients have requested it.
954--
955--       Note that we always allocate this counter, and set this field, but
956--       we do not always actually use it. It is only used if it is needed
957--       for access before elaboration use (see Elaboration_Entity_Required
958--       flag) or if either the spec or the body has elaboration code. If
959--       neither of these two conditions holds, then the entity is still
960--       allocated (since we don't know early enough whether or not there
961--       is elaboration code), but is simply not used for any purpose.
962
963--    Elaboration_Entity_Required (Flag174)
964--       Defined in generic and non-generic package and subprogram entities.
965--       Set only if Elaboration_Entity is non-Empty to indicate that the
966--       counter is required to be non-zero even if there is no other
967--       elaboration code. This occurs when the Elaboration_Entity counter
968--       is used for access before elaboration checks. If the counter is
969--       only used to prevent multiple execution of the elaboration code,
970--       then if there is no other elaboration code, obviously there is no
971--       need to set the flag.
972
973--    Enclosing_Scope (Node18)
974--       Defined in labels. Denotes the innermost enclosing construct that
975--       contains the label. Identical to the scope of the label, except for
976--       labels declared in the body of an accept statement, in which case the
977--       entry_name is the Enclosing_Scope. Used to validate goto's within
978--       accept statements.
979
980--    Entry_Accepted (Flag152)
981--       Defined in E_Entry and E_Entry_Family entities. Set if there is
982--       at least one accept for this entry in the task body. Used to
983--       generate warnings for missing accepts.
984
985--    Entry_Bodies_Array (Node15)
986--       Defined in protected types for which Has_Entries is true.
987--       This is the defining identifier for the array of entry body
988--       action procedures and barrier functions used by the runtime to
989--       execute the user code associated with each entry.
990
991--    Entry_Cancel_Parameter (Node23)
992--       Defined in blocks. This only applies to a block statement for
993--       which the Is_Asynchronous_Call_Block flag is set. It
994--       contains the defining identifier of an object that must be
995--       passed to the Cancel_Task_Entry_Call or Cancel_Protected_Entry_Call
996--       call in the cleanup handler added to the block by
997--       Exp_Ch7.Expand_Cleanup_Actions. This parameter is a Boolean
998--       object for task entry calls and a Communications_Block object
999--       in the case of protected entry calls. In both cases the objects
1000--       are declared in outer scopes to this block.
1001
1002--    Entry_Component (Node11)
1003--       Defined in formal parameters (in, in out and out parameters). Used
1004--       only for formals of entries. References the corresponding component
1005--       of the entry parameter record for the entry.
1006
1007--    Entry_Formal (Node16)
1008--       Defined in components of the record built to correspond to entry
1009--       parameters. This field points from the component to the formal. It
1010--       is the back pointer corresponding to Entry_Component.
1011
1012--    Entry_Index_Constant (Node18)
1013--       Defined in an entry index parameter. This is an identifier that
1014--       eventually becomes the name of a constant representing the index
1015--       of the entry family member whose entry body is being executed. Used
1016--       to expand references to the entry index specification identifier.
1017
1018--    Entry_Index_Type (synthesized)
1019--       Applies to an entry family. Denotes Etype of the subtype indication
1020--       in the entry declaration. Used to resolve the index expression in an
1021--       accept statement for a member of the family, and in the prefix of
1022--       'COUNT when it applies to a family member.
1023
1024--    Contract (Node24)
1025--       Defined in entries, and in subprogram and generic subprogram entities.
1026--       Points to the contract of the entity, holding both pre- and
1027--       postconditions as well as test-cases.
1028
1029--    Entry_Parameters_Type (Node15)
1030--       Defined in entries. Points to the access-to-record type that is
1031--       constructed by the expander to hold a reference to the parameter
1032--       values. This reference is manipulated (as an address) by the
1033--       tasking runtime. The designated record represents a packaging
1034--       up of the entry parameters (see Exp_Ch9.Expand_N_Entry_Declaration
1035--       for further details). Entry_Parameters_Type is Empty if the entry
1036--       has no parameters.
1037
1038--    Enumeration_Pos (Uint11)
1039--       Defined in enumeration literals. Contains the position number
1040--       corresponding to the value of the enumeration literal.
1041
1042--    Enumeration_Rep (Uint12)
1043--       Defined in enumeration literals. Contains the representation that
1044--       corresponds to the value of the enumeration literal. Note that
1045--       this is normally the same as Enumeration_Pos except in the presence
1046--       of representation clauses, where Pos will still represent the
1047--       position of the literal within the type and Rep will have be the
1048--       value given in the representation clause.
1049
1050--    Enumeration_Rep_Expr (Node22)
1051--       Defined in enumeration literals. Points to the expression in an
1052--       associated enumeration rep clause that provides the representation
1053--       value for this literal. Empty if no enumeration rep clause for this
1054--       literal (or if rep clause does not have an entry for this literal,
1055--       an error situation). This is also used to catch duplicate entries
1056--       for the same literal.
1057
1058--    Enum_Pos_To_Rep (Node23)
1059--       Defined in enumeration types (but not enumeration subtypes). Set to
1060--       Empty unless the enumeration type has a non-standard representation
1061--       (i.e. at least one literal has a representation value different from
1062--       its pos value). In this case, Enum_Pos_To_Rep is the entity for an
1063--       array constructed when the type is frozen that maps Pos values to
1064--       corresponding Rep values. The index type of this array is Natural,
1065--       and the component type is a suitable integer type that holds the
1066--       full range of representation values.
1067
1068--    Equivalent_Type (Node18)
1069--       Defined in class wide types and subtypes, access to protected
1070--       subprogram types, and in exception types. For a classwide type, it
1071--       is always Empty. For a class wide subtype, it points to an entity
1072--       created by the expander which gives Gigi an easily understandable
1073--       equivalent of the class subtype with a known size (given by an
1074--       initial value). See Exp_Util.Expand_Class_Wide_Subtype for further
1075--       details. For E_Exception_Type, this points to the record containing
1076--       the data necessary to represent exceptions (for further details, see
1077--       System.Standard_Library. For access_to_protected subprograms, it
1078--       denotes a record that holds pointers to the operation and to the
1079--       protected object. For remote Access_To_Subprogram types, it denotes
1080--       the record that is the fat pointer representation of an RAST.
1081
1082--    Esize (Uint12)
1083--       Defined in all types and subtypes, and also for components, constants,
1084--       and variables, including exceptions where it refers to the static data
1085--       allocated for an exception. Contains the Object_Size of the type or of
1086--       the object. A value of zero indicates that the value is not yet known.
1087--
1088--       For the case of components where a component clause is present, the
1089--       value is the value from the component clause, which must be non-
1090--       negative (but may be zero, which is acceptable for the case of
1091--       a type with only one possible value). It is also possible for Esize
1092--       of a component to be set without a component clause defined, which
1093--       means that the component size is specified, but not the position.
1094--       See also RM_Size and the section on "Handling of Type'Size Values".
1095--       During gigi processing, the value is back annotated for all zero
1096--       values, so that after the call to gigi, the value is properly set.
1097
1098--    Etype (Node5)
1099--       Defined in all entities. Represents the type of the entity, which
1100--       is itself another entity. For a type entity, points to the parent
1101--       type for a derived type, or if the type is not derived, points to
1102--       itself. For a subtype entity, Etype points to the base type. For
1103--       a class wide type, points to the corresponding specific type. For a
1104--       subprogram or subprogram type, Etype has the return type of a function
1105--       or is set to Standard_Void_Type to represent a procedure.
1106--
1107--       Note one obscure case: for pragma Default_Storage_Pool (null), the
1108--       Etype of the N_Null node is Empty.
1109
1110--    Exception_Code (Uint22)
1111--       Defined in exception entities. Set to zero unless either an
1112--       Import_Exception or Export_Exception pragma applies to the
1113--       pragma and specifies a Code value. See description of these
1114--       pragmas for details. Note that this field is relevant only if
1115--       Is_VMS_Exception is set.
1116
1117--    Extra_Formal (Node15)
1118--       Defined in formal parameters in the non-generic case. Certain
1119--       parameters require extra implicit information to be passed (e.g. the
1120--       flag indicating if an unconstrained variant record argument is
1121--       constrained, and the accessibility level for access parameters. See
1122--       description of Extra_Constrained, Extra_Accessibility fields for
1123--       further details. Extra formal parameters are constructed to represent
1124--       these values, and chained to the end of the list of formals using the
1125--       Extra_Formal field (i.e. the Extra_Formal field of the last "real"
1126--       formal points to the first extra formal, and the Extra_Formal field of
1127--       each extra formal points to the next one, with Empty indicating the
1128--       end of the list of extra formals.
1129
1130--    Extra_Formals (Node28)
1131--       Applies to subprograms and subprogram types, and also in entries
1132--       and entry families. Returns first extra formal of the subprogram
1133--       or entry. Returns Empty if there are no extra formals.
1134
1135--    Extra_Accessibility (Node13)
1136--       Defined in formal parameters in the non-generic case. Normally Empty,
1137--       but if expansion is active, and a parameter is one for which a
1138--       dynamic accessibility check is required, then an extra formal of type
1139--       Natural is created (see description of field Extra_Formal), and the
1140--       Extra_Accessibility field of the formal parameter points to the entity
1141--       for this extra formal. Also defined in variables when compiling
1142--       receiving stubs. In this case, a non Empty value means that this
1143--       variable's accessibility depth has been transmitted by the caller and
1144--       must be retrieved through the entity designed by this field instead of
1145--       being computed.
1146
1147--    Extra_Accessibility_Of_Result (Node19)
1148--       Defined in (non-generic) Function, Operator, and Subprogram_Type
1149--       entities. Normally Empty, but if expansion is active, and a function
1150--       is one for which "the accessibility level of the result ... determined
1151--       by the point of call" (AI05-0234) is needed, then an extra formal of
1152--       subtype Natural is created (see description of field Extra_Formal),
1153--       and the Extra_Accessibility_Of_Result field of the function points to
1154--       the entity for this extra formal.
1155
1156--    Extra_Constrained (Node23)
1157--       Defined in formal parameters in the non-generic case. Normally Empty,
1158--       but if expansion is active and a parameter is one for which a dynamic
1159--       indication of its constrained status is required, then an extra formal
1160--       of type Boolean is created (see description of field Extra_Formal),
1161--       and the Extra_Constrained field of the formal parameter points to the
1162--       entity for this extra formal. Also defined in variables when compiling
1163--       receiving stubs. In this case, a non empty value means that this
1164--       variable's constrained status has been transmitted by the caller and
1165--       must be retrieved through the entity designed by this field instead of
1166--       being computed.
1167
1168--    Finalization_Master (Node23) [root type only]
1169--       Defined in access-to-controlled or access-to-class-wide types. The
1170--       field contains the entity of the finalization master which handles
1171--       dynamically allocated controlled objects referenced by the access
1172--       type. Empty for access-to-subprogram types. Empty for access types
1173--       whose designated type does not need finalization actions.
1174
1175--    Finalize_Storage_Only (Flag158) [base type only]
1176--       Defined in all types. Set on direct controlled types to which a
1177--       valid Finalize_Storage_Only pragma applies. This flag is also set on
1178--       composite types when they have at least one controlled component and
1179--       all their controlled components are Finalize_Storage_Only. It is also
1180--       inherited by type derivation except for direct controlled types where
1181--       the Finalize_Storage_Only pragma is required at each level of
1182--       derivation.
1183
1184--    Finalizer (Node24)
1185--       Applies to package declarations and bodies. Contains the entity of the
1186--       library-level program which finalizes all package-level controlled
1187--       objects.
1188
1189--    First_Component (synthesized)
1190--       Applies to record types. Returns the first component by following the
1191--       chain of declared entities for the record until a component is found
1192--       (one with an Ekind of E_Component). The discriminants are skipped. If
1193--       the record is null, then Empty is returned.
1194
1195--    First_Component_Or_Discriminant (synthesized)
1196--      Similar to First_Component, but discriminants are not skipped, so will
1197--      find the first discriminant if discriminants are present.
1198
1199--    First_Entity (Node17)
1200--       Defined in all entities which act as scopes to which a list of
1201--       associated entities is attached (blocks, class subtypes and types,
1202--       entries, functions, loops, packages, procedures, protected objects,
1203--       record types and subtypes, private types, task types and subtypes).
1204--       Points to a list of associated entities using the Next_Entity field
1205--       as a chain pointer with Empty marking the end of the list.
1206
1207--    First_Exit_Statement (Node8)
1208--       Defined in E_Loop entity. The exit statements for a loop are chained
1209--       (in reverse order of appearance) using this field to point to the
1210--       first entry in the chain (last exit statement in the loop). The
1211--       entries are chained through the Next_Exit_Statement field of the
1212--       N_Exit_Statement node with Empty marking the end of the list.
1213
1214--    First_Formal (synthesized)
1215--       Applies to subprograms and subprogram types, and also in entries
1216--       and entry families. Returns first formal of the subprogram or entry.
1217--       The formals are the first entities declared in a subprogram or in
1218--       a subprogram type (the designated type of an Access_To_Subprogram
1219--       definition) or in an entry.
1220
1221--    First_Formal_With_Extras (synthesized)
1222--       Applies to subprograms and subprogram types, and also in entries
1223--       and entry families. Returns first formal of the subprogram or entry.
1224--       Returns Empty if there are no formals. The list returned includes
1225--       all the extra formals (see description of Extra_Formals field).
1226
1227--    First_Index (Node17)
1228--       Defined in array types and subtypes and in string types and subtypes.
1229--       By introducing implicit subtypes for the index constraints, we have
1230--       the same structure for constrained and unconstrained arrays, subtype
1231--       marks and discrete ranges are both represented by a subtype. This
1232--       function returns the tree node corresponding to an occurrence of the
1233--       first index (NOT the entity for the type). Subsequent indexes are
1234--       obtained using Next_Index. Note that this field is defined for the
1235--       case of string literal subtypes, but is always Empty.
1236
1237--    First_Literal (Node17)
1238--       Defined in all enumeration types, including character and boolean
1239--       types. This field points to the first enumeration literal entity
1240--       for the type (i.e. it is set to First (Literals (N)) where N is
1241--       the enumeration type definition node. A special case occurs with
1242--       standard character and wide character types, where this field is
1243--       Empty, since there are no enumeration literal lists in these cases.
1244--       Note that this field is set in enumeration subtypes, but it still
1245--       points to the first literal of the base type in this case.
1246
1247--    First_Optional_Parameter (Node14)
1248--       Defined in (non-generic) function and procedure entities. Set to a
1249--       non-null value only if a pragma Import_Function, Import_Procedure
1250--       or Import_Valued_Procedure specifies a First_Optional_Parameter
1251--       argument, in which case this field points to the parameter entity
1252--       corresponding to the specified parameter.
1253
1254--    First_Private_Entity (Node16)
1255--       Defined in all entities containing private parts (packages, protected
1256--       types and subtypes, task types and subtypes). The entities on the
1257--       entity chain are in order of declaration, so the entries for private
1258--       entities are at the end of the chain. This field points to the first
1259--       entity for the private part. It is Empty if there are no entities
1260--       declared in the private part or if there is no private part.
1261
1262--    First_Rep_Item (Node6)
1263--       Defined in all entities. If non-empty, points to a linked list of
1264--       representation pragmas nodes and representation clause nodes that
1265--       apply to the entity, linked using Next_Rep_Item, with Empty marking
1266--       the end of the list. In the case of derived types and subtypes, the
1267--       new entity inherits the chain at the point of declaration. This means
1268--       that it is possible to have multiple instances of the same kind of rep
1269--       item on the chain, in which case it is the first one that applies to
1270--       the entity.
1271--
1272--       Note: pragmas that can apply to more than one overloadable entity,
1273--       (Convention, Interface, Inline, Inline_Always, Import, Export,
1274--       External) are never present on this chain when they apply to
1275--       overloadable entities, since it is impossible for a given pragma
1276--       to be on more than one chain at a time.
1277--
1278--       For most representation items, the representation information is
1279--       reflected in other fields and flags in the entity. For example if a
1280--       record representation clause is present, the component entities
1281--       reflect the specified information. However, there are some items that
1282--       are only reflected in the chain. These include:
1283--
1284--          Machine_Attribute pragma
1285--          Link_Alias pragma
1286--          Linker_Section pragma
1287--          Linker_Constructor pragma
1288--          Linker_Destructor pragma
1289--          Weak_External pragma
1290--          Thread_Local_Storage pragma
1291--
1292--       If any of these items are present, then the flag Has_Gigi_Rep_Item is
1293--       set, indicating that Gigi should search the chain.
1294--
1295--       Other representation items are included in the chain so that error
1296--       messages can easily locate the relevant nodes for posting errors.
1297--       Note in particular that size clauses are defined only for this
1298--       purpose, and should only be accessed if Has_Size_Clause is set.
1299
1300--    Float_Rep (Uint10)
1301--       Defined in floating-point entities. Contains a value of type
1302--       Float_Rep_Kind. Together with the Digits_Value uniquely defines
1303--       the floating-point representation to be used.
1304
1305--    Freeze_Node (Node7)
1306--       Defined in all entities. If there is an associated freeze node for the
1307--       entity, this field references this freeze node. If no freeze node is
1308--       associated with the entity, then this field is Empty. See package
1309--       Freeze for further details.
1310
1311--    From_With_Type (Flag159)
1312--       Defined in package and type entities. Indicates that the entity
1313--       appears in a With_Type clause in the context of some other unit,
1314--       either as the prefix (which must be a package), or as a type name.
1315--       The package can only be used to retrieve such a type, and the type
1316--       can be used only in component declarations and access definitions.
1317--       The With_Type clause is used to construct mutually recursive
1318--       types, i.e. record types (Java classes) that hold pointers to each
1319--       other. If such a type is an access type, it has no explicit freeze
1320--       node, so that the back-end does not attempt to elaborate it.
1321--       Currently this flag is also used to implement Ada 2005 (AI-50217).
1322--       It will be renamed to From_Limited_With after removal of the current
1323--       GNAT with_type clause???
1324
1325--    Full_View (Node11)
1326--       Defined in all type and subtype entities and in deferred constants.
1327--       References the entity for the corresponding full type declaration.
1328--       For all types other than private and incomplete types, this field
1329--       always contains Empty. If an incomplete type E1 is completed by a
1330--       private type E2 whose full type declaration entity is E3 then the
1331--       full view of E1 is E2, and the full view of E2 is E3. See also
1332--       Underlying_Type.
1333
1334--    Generic_Homonym (Node11)
1335--       Defined in generic packages. The generic homonym is the entity of
1336--       a renaming declaration inserted in every generic unit. It is used
1337--       to resolve the name of a local entity that is given by a qualified
1338--       name, when the generic entity itself is hidden by a local name.
1339
1340--    Generic_Renamings (Elist23)
1341--       Defined in package and subprogram instances. Holds mapping that
1342--       associates generic parameters with the corresponding instances, in
1343--       those cases where the instance is an entity.
1344
1345--    Handler_Records (List10)
1346--       Defined in subprogram and package entities. Points to a list of
1347--       identifiers referencing the handler record entities for the
1348--       corresponding unit.
1349
1350--    Has_Aliased_Components (Flag135) [implementation base type only]
1351--       Defined in array type entities. Indicates that the component type
1352--       of the array is aliased.
1353
1354--    Has_Alignment_Clause (Flag46)
1355--       Defined in all type entities and objects. Indicates if an alignment
1356--       clause has been given for the entity. If set, then Alignment_Clause
1357--       returns the N_Attribute_Definition node for the alignment attribute
1358--       definition clause. Note that it is possible for this flag to be False
1359--       even when Alignment_Clause returns non_Empty (this happens in the case
1360--       of derived type declarations).
1361
1362--    Has_All_Calls_Remote (Flag79)
1363--       Defined in all library unit entities. Set true if the library unit
1364--       has an All_Calls_Remote pragma. Note that such entities must also
1365--       be RCI entities, so the flag Is_Remote_Call_Interface will always
1366--       be set if this flag is set.
1367
1368--    Has_Anonymous_Master (Flag253)
1369--       Defined in units (top-level functions and procedures, library-level
1370--       packages). Set to True if the associated unit contains a heterogeneous
1371--       finalization master. The master's name is of the form <unit>AM and it
1372--       services anonymous access-to-controlled types with an undetermined
1373--       lifetime.
1374
1375--    Has_Atomic_Components (Flag86) [implementation base type only]
1376--       Defined in all types and objects. Set only for an array type or
1377--       an array object if a valid pragma Atomic_Components applies to the
1378--       type or object. Note that in the case of an object, this flag is
1379--       only set on the object if there was an explicit pragma for the
1380--       object. In other words, the proper test for whether an object has
1381--       atomic components is to see if either the object or its base type
1382--       has this flag set. Note that in the case of a type, the pragma will
1383--       be chained to the rep item chain of the first subtype in the usual
1384--       manner.
1385
1386--    Has_Attach_Handler (synthesized)
1387--       Applies to record types that are constructed by the expander to
1388--       represent protected types. Returns True if there is at least one
1389--       Attach_Handler pragma in the corresponding specification.
1390
1391--    Has_Biased_Representation (Flag139)
1392--       Defined in discrete types (where it applies to the type'size value),
1393--       and to objects (both stand-alone and components), where it applies to
1394--       the size of the object from a size or record component clause. In
1395--       all cases it indicates that the size in question is smaller than
1396--       would normally be required, but that the size requirement can be
1397--       satisfied by using a biased representation, in which stored values
1398--       have the low bound (Expr_Value (Type_Low_Bound (T)) subtracted to
1399--       reduce the required size. For example, a type with a range of 1..2
1400--       takes one bit, using 0 to represent 1 and 1 to represent 2.
1401--
1402--       Note that in the object and component cases, the flag is only set if
1403--       the type is unbiased, but the object specifies a smaller size than the
1404--       size of the type, forcing biased representation for the object, but
1405--       the subtype is still an unbiased type.
1406
1407--    Has_Completion (Flag26)
1408--       Defined in all entities that require a completion (functions,
1409--       procedures, private types, limited private types, incomplete types,
1410--       constants and packages that require a body). The flag is set if the
1411--       completion has been encountered and analyzed.
1412
1413--    Has_Completion_In_Body (Flag71)
1414--       Defined in all entities for types and subtypes. Set only in "Taft
1415--       amendment types" (incomplete types whose full declaration appears in
1416--       the package body).
1417
1418--    Has_Complex_Representation (Flag140) [implementation base type only]
1419--       Defined in all type entities. Set only for a record base type to
1420--       which a valid pragma Complex_Representation applies.
1421
1422--    Has_Component_Size_Clause (Flag68) [implementation base type only]
1423--       Defined in all type entities. Set if a component size clause is
1424--       Defined for the given type. Note that this flag can be False even
1425--       if Component_Size is non-zero (happens in the case of derived types).
1426
1427--    Has_Constrained_Partial_View (Flag187)
1428--       Defined in private type and their completions, when the private
1429--       type has no discriminants and the full view has discriminants with
1430--       defaults. In Ada 2005 heap-allocated objects of such types are not
1431--       constrained, and can change their discriminants with full assignment.
1432--       Sem_Aux.Effectively_Has_Constrained_Partial_View should be always
1433--       used by callers, rather than reading this attribute directly because,
1434--       according to RM 3.10.2 (27/2), untagged generic formal private types
1435--       and subtypes are also considered to have a constrained partial view
1436--       [when in a generic body].
1437
1438--    Has_Contiguous_Rep (Flag181)
1439--       Defined in enumeration types. True if the type as a representation
1440--       clause whose entries are successive integers.
1441
1442--    Has_Controlling_Result (Flag98)
1443--       Defined in E_Function entities. True if the function is a primitive
1444--       function of a tagged type which can dispatch on result.
1445
1446--    Has_Controlled_Component (Flag43) [base type only]
1447--       Defined in all type and subtype entities. Set only for composite type
1448--       entities which contain a component that either is a controlled type,
1449--       or itself contains controlled component (i.e. either Is_Controlled or
1450--       Has_Controlled_Component is set for at least one component).
1451
1452--    Has_Convention_Pragma (Flag119)
1453--       Defined in all entities. Set true for an entity for which a valid
1454--       Convention, Import, or Export pragma has been given. Used to prevent
1455--       more than one such pragma appearing for a given entity (RM B.1(45)).
1456
1457--    Has_Delayed_Aspects (Flag200)
1458--      Defined in all entities. Set true if the Rep_Item chain for the entity
1459--      has one or more N_Aspect_Definition nodes chained which are not to be
1460--      evaluated till the freeze point. The aspect definition expression
1461--      clause has been preanalyzed to get visibility at the point of use,
1462--      but no other action has been taken.
1463
1464--    Has_Delayed_Freeze (Flag18)
1465--       Defined in all entities. Set to indicate that an explicit freeze
1466--       node must be generated for the entity at its freezing point. See
1467--       separate section ("Delayed Freezing and Elaboration") for details.
1468
1469--    Has_Default_Aspect (Flag39) [base type only]
1470--       Defined in entities for types and subtypes, set for scalar types with
1471--       a Default_Value aspect and array types with a Default_Component_Value
1472--       apsect. If this flag is set, then a corresponding aspect specification
1473--       node will be present on the rep item chain for the entity.
1474
1475--    Has_Discriminants (Flag5)
1476--       Defined in all types and subtypes. For types that are allowed to have
1477--       discriminants (record types and subtypes, task types and subtypes,
1478--       protected types and subtypes, private types, limited private types,
1479--       and incomplete types), indicates if the corresponding type or subtype
1480--       has a known discriminant part. Always false for all other types.
1481
1482--    Has_Dispatch_Table (Flag220)
1483--       Defined in E_Record_Types that are tagged. Set to indicate that the
1484--       corresponding dispatch table is already built. This flag is used to
1485--       avoid duplicate construction of library level dispatch tables (because
1486--       the declaration of library level objects cause premature construction
1487--       of the table); otherwise the code that builds the table is added at
1488--       the end of the list of declarations of the package.
1489
1490--    Has_Entries (synthesized)
1491--       Applies to concurrent types. True if any entries are declared
1492--       within the task or protected definition for the type.
1493
1494--    Has_Enumeration_Rep_Clause (Flag66)
1495--       Defined in enumeration types. Set if an enumeration representation
1496--       clause has been given for this enumeration type. Used to prevent more
1497--       than one enumeration representation clause for a given type. Note
1498--       that this does not imply a representation with holes, since the rep
1499--       clause may merely confirm the default 0..N representation.
1500
1501--    Has_External_Tag_Rep_Clause (Flag110)
1502--       Defined in tagged types. Set if an external_tag rep. clause has been
1503--       given for this type. Use to avoid the generation of the default
1504--       external_tag.
1505
1506--    Has_Exit (Flag47)
1507--       Defined in loop entities. Set if the loop contains an exit statement.
1508
1509--    Has_Foreign_Convention (synthesized)
1510--       Applies to all entities. Determines if the Convention for the
1511--       entity is a foreign convention (i.e. is other than Convention_Ada,
1512--       Convention_Intrinsic, Convention_Entry or Convention_Protected).
1513
1514--    Has_Forward_Instantiation (Flag175)
1515--       Defined in package entities. Set true for packages that contain
1516--       instantiations of local generic entities, before the corresponding
1517--       generic body has been seen. If a package has a forward instantiation,
1518--       we cannot inline subprograms appearing in the same package because
1519--       the placement requirements of the instance will conflict with the
1520--       linear elaboration of front-end inlining.
1521
1522--    Has_Fully_Qualified_Name (Flag173)
1523--       Defined in all entities. Set True if the name in the Chars field has
1524--       been replaced by the fully qualified name, as used for debug output.
1525--       See Exp_Dbug for a full description of the use of this flag and also
1526--       the related flag Has_Qualified_Name.
1527
1528--    Has_Gigi_Rep_Item (Flag82)
1529--       Defined in all entities. Set if the rep item chain (referenced by
1530--       First_Rep_Item and linked through the Next_Rep_Item chain) contains a
1531--       representation item that needs to be specially processed by Gigi, i.e.
1532--       one of the following items:
1533--
1534--          Machine_Attribute pragma
1535--          Linker_Alias pragma
1536--          Linker_Section pragma
1537--          Linker_Constructor pragma
1538--          Linker_Destructor pragma
1539--          Weak_External pragma
1540--          Thread_Local_Storage pragma
1541--
1542--       If this flag is set, then Gigi should scan the rep item chain to
1543--       process any of these items that appear. At least one such item will
1544--       be present.
1545
1546--    Has_Homonym (Flag56)
1547--       Defined in all entities. Set if an entity has a homonym in the same
1548--       scope. Used by Gigi to generate unique names for such entities.
1549
1550--    Has_Implicit_Dereference (Flag251)
1551--       Defined in types and discriminants. Set if the type has an aspect
1552--       Implicit_Dereference. Set also on the discriminant named in the aspect
1553--       clause, to simplify type resolution.
1554
1555--    Has_Independent_Components (Flag34)
1556--       Defined in objects and types. Set if the aspect Independent_Components
1557--       applies (as set by coresponding pragma or aspect specification).
1558
1559--    Has_Inheritable_Invariants (Flag248)
1560--       Defined in all type entities. Set True in private types from which one
1561--       or more Invariant'Class aspects will be inherited if a another type is
1562--       derived from the type (i.e. those types which have an Invariant'Class
1563--       aspect, or which inherit one or more Invariant'Class aspects). Also
1564--       set in the corresponding full types. Note that it might be the full
1565--       type which has inheritable invariants, and in this case the flag will
1566--       also be set in the private type.
1567
1568--    Has_Initial_Value (Flag219)
1569--       Defined in entities for variables and out parameters. Set if there
1570--       is an explicit initial value expression in the declaration of the
1571--       variable. Note that this is set only if this initial value is
1572--       explicit, it is not set for the case of implicit initialization
1573--       of access types or controlled types. Always set to False for out
1574--       parameters. Also defined in entities for in and in-out parameters,
1575--       but always false in these cases.
1576
1577--    Has_Interrupt_Handler (synthesized)
1578--       Applies to all protected type entities. Set if the protected type
1579--       definition contains at least one procedure to which a pragma
1580--       Interrupt_Handler applies.
1581
1582--    Has_Invariants (Flag232)
1583--       Defined in all type entities and in subprogram entities. Set True in
1584--       private types if an Invariant or Invariant'Class aspect applies to the
1585--       type, or if the type inherits one or more Invariant'Class aspects.
1586--       Also set in the corresponding full type. Note: if this flag is set
1587--       True, then usually the Invariant_Procedure attribute is set once the
1588--       type is frozen, however this may not be true in some error situations.
1589--       Note that it might be the full type which has inheritable invariants,
1590--       and then the flag will also be set in the private type. Also set in
1591--       the invariant procedure entity, to distinguish it among entries in the
1592--       Subprograms_For_Type.
1593
1594--    Has_Machine_Radix_Clause (Flag83)
1595--       Defined in decimal types and subtypes, set if a Machine_Radix
1596--       representation clause is present. This flag is used to detect
1597--       the error of multiple machine radix clauses for a single type.
1598
1599--    Has_Master_Entity (Flag21)
1600--       Defined in entities that can appear in the scope stack (see spec
1601--       of Sem). It is set if a task master entity (_master) has been
1602--       declared and initialized in the corresponding scope.
1603
1604--    Has_Missing_Return (Flag142)
1605--       Defined in functions and generic functions. Set if there is one or
1606--       more missing return statements in the function. This is used to
1607--       control wrapping of the body in Exp_Ch6 to ensure that the program
1608--       error exception is correctly raised in this case at runtime.
1609
1610--    Has_Nested_Block_With_Handler (Flag101)
1611--       Defined in scope entities. Set if there is a nested block within the
1612--       scope that has an exception handler and the two scopes are in the
1613--       same procedure. This is used by the backend for controlling certain
1614--       optimizations to ensure that they are consistent with exceptions.
1615--       See documentation in Gigi for further details.
1616
1617--    Has_Non_Standard_Rep (Flag75) [implementation base type only]
1618--       Defined in all type entities. Set when some representation clause
1619--       or pragma causes the representation of the item to be significantly
1620--       modified. In this category are changes of small or radix for a
1621--       fixed-point type, change of component size for an array, and record
1622--       or enumeration representation clauses, as well as packed pragmas.
1623--       All other representation clauses (e.g. Size and Alignment clauses)
1624--       are not considered to be significant since they do not affect
1625--       stored bit patterns.
1626
1627--    Has_Object_Size_Clause (Flag172)
1628--       Defined in entities for types and subtypes. Set if an Object_Size
1629--       clause has been processed for the type Used to prevent multiple
1630--       Object_Size clauses for a given entity.
1631
1632--    Has_Per_Object_Constraint (Flag154)
1633--       Defined in E_Component entities, true if the subtype of the
1634--       component has a per object constraint. Per object constraints result
1635--       from the following situations:
1636--
1637--       1. N_Attribute_Reference - when the prefix is the enclosing type and
1638--          the attribute is Access.
1639--       2. N_Discriminant_Association - when the expression uses the
1640--          discriminant of the enclosing type.
1641--       3. N_Index_Or_Discriminant_Constraint - when at least one of the
1642--          individual constraints is a per object constraint.
1643--       4. N_Range - when the lower or upper bound uses the discriminant of
1644--          the enclosing type.
1645--       5. N_Range_Constraint - when the range expression uses the
1646--          discriminant of the enclosing type.
1647
1648--    Has_Postconditions (Flag240)
1649--      Defined in subprogram entities. Set if postconditions are active for
1650--      the procedure, and a _postconditions procedure has been generated.
1651
1652--    Has_Pragma_Controlled (Flag27) [implementation base type only]
1653--       Defined in access type entities. It is set if a pragma Controlled
1654--       applies to the access type.
1655
1656--    Has_Pragma_Elaborate_Body (Flag150)
1657--       Defined in all entities. Set in compilation unit entities if a
1658--       pragma Elaborate_Body applies to the compilation unit.
1659
1660--    Has_Pragma_Inline (Flag157)
1661--       Defined in all entities. Set for functions and procedures for which a
1662--       pragma Inline or Inline_Always applies to the subprogram. Note that
1663--       this flag can be set even if Is_Inlined is not set. This happens for
1664--       pragma Inline (if Inline_Active is False). In other words, the flag
1665--       Has_Pragma_Inline represents the formal semantic status, and is used
1666--       for checking semantic correctness. The flag Is_Inlined indicates
1667--       whether inlining is actually active for the entity.
1668
1669--    Has_Pragma_Inline_Always (Flag230)
1670--       Defined in all entities. Set for functions and procedures for which a
1671--       pragma Inline_Always applies. Note that if this flag is set, the flag
1672--       Has_Pragma_Inline is also set.
1673
1674--    Has_Pragma_No_Inline (Flag201)
1675--       Defined in all entities. Set for functions and procedures for which a
1676--       pragma No_Inline applies. Note that if this flag is set, the flag
1677--       Has_Pragma_Inline_Always cannot be set.
1678
1679--    Has_Pragma_Ordered (Flag198) [implementation base type only]
1680--       Defined in entities for enumeration types. If set indicates that a
1681--       valid pragma Ordered was given for the type. This flag is inherited
1682--       by derived enumeration types. We don't need to distinguish the derived
1683--       case since we allow multiple occurrences of this pragma anyway.
1684
1685--    Has_Pragma_Pack (Flag121) [implementation base type only]
1686--       Defined in array and record type entities. If set, indicates that a
1687--       valid pragma Pack was given for the type. Note that this flag is not
1688--       inherited by derived type. See also the Is_Packed flag.
1689
1690--    Has_Pragma_Pure (Flag203)
1691--       Defined in all entities. If set, indicates that a valid pragma Pure
1692--       was given for the entity. In some cases, we need to test whether
1693--       Is_Pure was explicitly set using this pragma.
1694
1695--    Has_Pragma_Preelab_Init (Flag221)
1696--       Defined in type and subtype entities. If set indicates that a valid
1697--       pragma Preelaborable_Initialization applies to the type.
1698
1699--    Has_Pragma_Pure_Function (Flag179)
1700--       Defined in all entities. If set, indicates that a valid pragma
1701--       Pure_Function was given for the entity. In some cases, we need to
1702--       know that Is_Pure was explicitly set using this pragma. We also set
1703--       this flag for some internal entities that we know should be treated
1704--       as pure for optimization purposes.
1705
1706--    Has_Pragma_Thread_Local_Storage (Flag169)
1707--       Defined in all entities. If set, indicates that a valid pragma
1708--       Thread_Local_Storage was given for the entity.
1709
1710--    Has_Pragma_Unmodified (Flag233)
1711--       Defined in all entities. Can only be set for variables (E_Variable,
1712--       E_Out_Parameter, E_In_Out_Parameter). Set if a valid pragma Unmodified
1713--       applies to the variable, indicating that no warning should be given
1714--       if the entity is never modified. Note that clients should generally
1715--       not test this flag directly, but instead use function Has_Unmodified.
1716
1717--    Has_Pragma_Unreferenced (Flag180)
1718--       Defined in all entities. Set if a valid pragma Unreferenced applies
1719--       to the entity, indicating that no warning should be given if the
1720--       entity has no references, but a warning should be given if it is
1721--       in fact referenced. For private types, this flag is set in both the
1722--       private entity and full entity if the pragma applies to either. Note
1723--       that clients should generally not test this flag directly, but instead
1724--       use function Has_Unreferenced.
1725
1726--    Has_Pragma_Unreferenced_Objects (Flag212)
1727--       Defined in type and subtype entities. Set if a valid pragma
1728--       Unreferenced_Objects applies to the type, indicating that no warning
1729--       should be given for objects of such a type for being unreferenced
1730--       (but unlike the case with pragma Unreferenced, it is ok to reference
1731--       such an object and no warning is generated.
1732
1733--    Has_Predicates (Flag250)
1734--       Defined in all entities. Set in type and subtype entities if a pragma
1735--       Predicate or Predicate aspect applies to the type, or if it inherits a
1736--       Predicate aspect from its parent or progenitor types. Also set in the
1737--       predicate function entity, to distinguish it among entries in the
1738--       Subprograms_For_Type.
1739
1740--    Has_Primitive_Operations (Flag120) [base type only]
1741--       Defined in all type entities. Set if at least one primitive operation
1742--       is defined for the type.
1743
1744--    Has_Private_Ancestor (Flag151)
1745--       Applies to type extensions. True if some ancestor is derived from a
1746--       private type, making some components invisible and aggregates illegal.
1747--       This flag is set at the point of derivation. The legality of the
1748--       aggregate must be rechecked because it also depends on the visibility
1749--       at the point the aggregate is resolved. See sem_aggr.adb.
1750--       This is part of AI05-0115.
1751
1752--    Has_Private_Declaration (Flag155)
1753--       Defined in all entities. Returns True if it is the defining entity
1754--       of a private type declaration or its corresponding full declaration.
1755--       This flag is thus preserved when the full and the partial views are
1756--       exchanged, to indicate if a full type declaration is a completion.
1757--       Used for semantic checks in E.4(18) and elsewhere.
1758
1759--    Has_Qualified_Name (Flag161)
1760--       Defined in all entities. Set True if the name in the Chars field
1761--       has been replaced by its qualified name, as used for debug output.
1762--       See Exp_Dbug for a full description of qualification requirements.
1763--       For some entities, the name is the fully qualified name, but there
1764--       are exceptions. In particular, for local variables in procedures,
1765--       we do not include the procedure itself or higher scopes. See also
1766--       the flag Has_Fully_Qualified_Name, which is set if the name does
1767--       indeed include the fully qualified name.
1768
1769--    Has_RACW (Flag214)
1770--       Defined in package spec entities. Set if the spec contains the
1771--       declaration of a remote access-to-classwide type.
1772
1773--    Has_Record_Rep_Clause (Flag65) [implementation base type only]
1774--       Defined in record types. Set if a record representation clause has
1775--       been given for this record type. Used to prevent more than one such
1776--       clause for a given record type. Note that this is initially cleared
1777--       for a derived type, even though the representation is inherited. See
1778--       also the flag Has_Specified_Layout.
1779
1780--    Has_Recursive_Call (Flag143)
1781--       Defined in procedures. Set if a direct parameterless recursive call
1782--       is detected while analyzing the body. Used to activate some error
1783--       checks for infinite recursion.
1784
1785--    Has_Size_Clause (Flag29)
1786--       Defined in entities for types and objects. Set if a size clause is
1787--       Defined for the entity. Used to prevent multiple Size clauses for a
1788--       given entity. Note that it is always initially cleared for a derived
1789--       type, even though the Size for such a type is inherited from a Size
1790--       clause given for the parent type.
1791
1792--    Has_Small_Clause (Flag67)
1793--       Defined in ordinary fixed point types (but not subtypes). Indicates
1794--       that a small clause has been given for the entity. Used to prevent
1795--       multiple Small clauses for a given entity. Note that it is always
1796--       initially cleared for a derived type, even though the Small for such
1797--       a type is inherited from a Small clause given for the parent type.
1798
1799--    Has_Specified_Layout (Flag100) [implementation base type only]
1800--       Defined in all type entities. Set for a record type or subtype if
1801--       the record layout has been specified by a record representation
1802--       clause. Note that this differs from the flag Has_Record_Rep_Clause
1803--       in that it is inherited by a derived type. Has_Record_Rep_Clause is
1804--       used to indicate that the type is mentioned explicitly in a record
1805--       representation clause, and thus is not inherited by a derived type.
1806--       This flag is always False for non-record types.
1807
1808--    Has_Specified_Stream_Input (Flag190)
1809--    Has_Specified_Stream_Output (Flag191)
1810--    Has_Specified_Stream_Read (Flag192)
1811--    Has_Specified_Stream_Write (Flag193)
1812--       Defined in all type and subtype entities. Set for a given view if the
1813--       corresponding stream-oriented attribute has been defined by an
1814--       attribute definition clause. When such a clause occurs, a TSS is set
1815--       on the underlying full view; the flags are used to track visibility of
1816--       the attribute definition clause for partial or incomplete views.
1817
1818--    Has_Static_Discriminants (Flag211)
1819--       Defined in record subtypes constrained by discriminant values. Set if
1820--       all the discriminant values have static values, meaning that in the
1821--       case of a variant record, the component list can be trimmed down to
1822--       include only the components corresponding to these discriminants.
1823
1824--    Has_Storage_Size_Clause (Flag23) [implementation base type only]
1825--       Defined in task types and access types. It is set if a Storage_Size
1826--       clause is present for the type. Used to prevent multiple clauses for
1827--       one type. Note that this flag is initially cleared for a derived type
1828--       even though the Storage_Size for such a type is inherited from a
1829--       Storage_Size clause given for the parent type. Note that in the case
1830--       of access types, this flag is defined only in the root type, since a
1831--       storage size clause cannot be given to a derived type.
1832
1833--    Has_Stream_Size_Clause (Flag184)
1834--       Defined in all entities. It is set for types which have a Stream_Size
1835--       clause attribute. Used to prevent multiple Stream_Size clauses for a
1836--       given entity, and also whether it is necessary to check for a stream
1837--       size clause.
1838
1839--    Has_Task (Flag30) [base type only]
1840--       Defined in all type entities. Set on task types themselves, and also
1841--       (recursively) on any composite type which has a component for which
1842--       Has_Task is set. The meaning is that an allocator or declaration of
1843--       such an object must create the required tasks. Note: the flag is not
1844--       set on access types, even if they designate an object that Has_Task.
1845
1846--    Has_Thunks (Flag228)
1847--       Applies to E_Constant entities marked Is_Tag. True for secondary tag
1848--       referencing a dispatch table whose contents are pointers to thunks.
1849
1850--    Has_Unchecked_Union (Flag123) [base type only]
1851--       Defined in all type entities. Set on unchecked unions themselves
1852--       and (recursively) on any composite type which has a component for
1853--       which Has_Unchecked_Union is set. The meaning is that a comparison
1854--       operation for the type is not permitted. Note that the flag is not
1855--       set on access types, even if they designate an object that has
1856--       the flag Has_Unchecked_Union set.
1857
1858--    Has_Unknown_Discriminants (Flag72)
1859--       Defined in all entities. Set for types with unknown discriminants.
1860--       Types can have unknown discriminants either from their declaration or
1861--       through type derivation. The use of this flag exactly meets the spec
1862--       in RM 3.7(26). Note that all class-wide types are considered to have
1863--       unknown discriminants. Note that both Has_Discriminants and
1864--       Has_Unknown_Discriminants may be true for a type. Class-wide types and
1865--       their subtypes have unknown discriminants and can have declared ones
1866--       as well. Private types declared with unknown discriminants may have a
1867--       full view that has explicit discriminants, and both flag will be set
1868--       on the partial view, to insure that discriminants are properly
1869--       inherited in certain contexts.
1870
1871--    Has_Up_Level_Access (Flag215)
1872--       Defined in E_Variable and E_Constant entities. Set if the entity
1873--       is a local variable declared in a subprogram p and is accessed in
1874--       a subprogram nested inside p. Currently this flag is only set when
1875--       VM_Target /= No_VM, for efficiency, since only the .NET back-end
1876--       makes use of it to generate proper code for up-level references.
1877
1878--    Has_Volatile_Components (Flag87) [implementation base type only]
1879--       Defined in all types and objects. Set only for an array type or array
1880--       object if a valid pragma Volatile_Components or a valid pragma
1881--       Atomic_Components applies to the type or object. Note that in the case
1882--       of an object, this flag is only set on the object if there was an
1883--       explicit pragma for the object. In other words, the proper test for
1884--       whether an object has volatile components is to see if either the
1885--       object or its base type has this flag set. Note that in the case of a
1886--       type the pragma will be chained to the rep item chain of the first
1887--       subtype in the usual manner.
1888
1889--    Has_Xref_Entry (Flag182)
1890--       Defined in all entities. Set if an entity has an entry in the Xref
1891--       information generated in ali files. This is true for all source
1892--       entities in the extended main source file. It is also true of entities
1893--       in other packages that are referenced directly or indirectly from the
1894--       main source file (indirect reference occurs when the main source file
1895--       references an entity with a type reference. See package Lib.Xref for
1896--       further details).
1897
1898--    Hiding_Loop_Variable (Node8)
1899--       Defined in variables. Set only if a variable of a discrete type is
1900--       hidden by a loop variable in the same local scope, in which case
1901--       the Hiding_Loop_Variable field of the hidden variable points to
1902--       the E_Loop_Parameter entity doing the hiding. Used in processing
1903--       warning messages if the hidden variable turns out to be unused
1904--       or is referenced without being set.
1905
1906--    Homonym (Node4)
1907--       Defined in all entities. Link for list of entities that have the
1908--       same source name and that are declared in the same or enclosing
1909--       scopes. Homonyms in the same scope are overloaded. Used for name
1910--       resolution and for the generation of debugging information.
1911
1912--    Implementation_Base_Type (synthesized)
1913--       Applies to all entities. For types, similar to Base_Type, but never
1914--       returns a private type when applied to a non-private type. Instead in
1915--       this case, it always returns the Underlying_Type of the base type, so
1916--       that we still have a concrete type. For entities other than types,
1917--       returns the entity unchanged.
1918
1919--    In_Package_Body (Flag48)
1920--       Defined in package entities. Set on the entity that denotes the
1921--       package (the defining occurrence of the package declaration) while
1922--       analyzing and expanding the package body. Reset on completion of
1923--       analysis/expansion.
1924
1925--    In_Private_Part (Flag45)
1926--       Defined in all entities. Can be set only in package entities and
1927--       objects. For package entities, this flag is set to indicate that the
1928--       private part of the package is being analyzed. The flag is reset at
1929--       the end of the package declaration. For objects it indicates that the
1930--       declaration of the object occurs in the private part of a package.
1931
1932--    Initialization_Statements (Node28)
1933--       Defined in constants and variables. For a composite object initialized
1934--       initialized with an aggregate that has been converted to a sequence
1935--       of assignments, points to a block statement containing the
1936--       assignments.
1937
1938--    Inner_Instances (Elist23)
1939--       Defined in generic units. Contains element list of units that are
1940--       instantiated within the given generic. Used to diagnose circular
1941--       instantiations.
1942
1943--    Integrity_Level (Uint8)
1944--       Defined for E_Abstract_State entities. Contains the numerical value of
1945--       the integrity level state property. A value of Uint_0 designates a non
1946--       existent integrity.
1947
1948--    Interface_Alias (Node25)
1949--       Defined in subprograms that cover a primitive operation of an abstract
1950--       interface type. Can be set only if the Is_Hidden flag is also set,
1951--       since such entities are always hidden. Points to its associated
1952--       interface subprogram. It is used to register the subprogram in
1953--       secondary dispatch table of the interface (Ada 2005: AI-251).
1954
1955--    Interface_Name (Node21)
1956--       Defined in constants, variables, exceptions, functions, procedures,
1957--       packages, components (JGNAT only), discriminants (JGNAT only), and
1958--       access to subprograms (JGNAT only). Set to Empty unless an export,
1959--       import, or interface name pragma has explicitly specified an external
1960--       name, in which case it references an N_String_Literal node for the
1961--       specified external name. In the case of exceptions, the field is set
1962--       by Import_Exception/Export_Exception (which can be used in OpenVMS
1963--       versions only). Note that if this field is Empty, and Is_Imported
1964--       or Is_Exported is set, then the default interface name is the name
1965--       of the entity, cased in a manner that is appropriate to the system
1966--       in use. Note that Interface_Name is ignored if an address clause
1967--       is present (since it is meaningless in this case).
1968--
1969--       An additional special case usage of this field is in JGNAT for
1970--       E_Component and E_Discriminant. JGNAT allows these entities to be
1971--       imported by specifying pragma Import within a component's containing
1972--       record definition. This supports interfacing to object fields defined
1973--       within Java classes, and such pragmas are generated by the jvm2ada
1974--       binding generator tool whenever it processes classes with public
1975--       object fields. A pragma Import for a component can define the
1976--       External_Name of the imported Java field (which is generally needed,
1977--       because Java names are case sensitive).
1978
1979--    Interfaces (Elist25)
1980--       Defined in record types and subtypes. List of abstract interfaces
1981--       implemented by a tagged type that are not already implemented by the
1982--       ancestors (Ada 2005: AI-251).
1983
1984--    Invariant_Procedure (synthesized)
1985--       Defined in types and subtypes. Set for private types if one or more
1986--       Invariant, or Invariant'Class, or inherited Invariant'Class aspects
1987--       apply to the type. Points to the entity for a procedure which checks
1988--       the invariant. This invariant procedure takes a single argument of the
1989--       given type, and returns if the invariant holds, or raises exception
1990--       Assertion_Error with an appropriate message if it does not hold. This
1991--       attribute is defined but always empty for private subtypes. This
1992--       attribute is also set for the corresponding full type.
1993--
1994--       Note: the reason this is marked as a synthesized attribute is that the
1995--       way this is stored is as an element of the Subprograms_For_Type field.
1996
1997--    In_Use (Flag8)
1998--       Defined in packages and types. Set when analyzing a use clause for
1999--       the corresponding entity. Reset at end of corresponding declarative
2000--       part. The flag on a type is also used to determine the visibility of
2001--       the primitive operators of the type.
2002
2003--    Is_Abstract_Subprogram (Flag19)
2004--       Defined in all subprograms and entries. Set for abstract subprograms.
2005--       Always False for enumeration literals and entries. See also
2006--       Requires_Overriding.
2007
2008--    Is_Abstract_Type (Flag146)
2009--       Defined in all types. Set for abstract types.
2010
2011--    Is_Access_Constant (Flag69)
2012--       Defined in access types and subtypes. Indicates that the keyword
2013--       constant was present in the access type definition.
2014
2015--    Is_Access_Protected_Subprogram_Type (synthesized)
2016--       Applies to all types, true for named and anonymous access to
2017--       protected subprograms.
2018
2019--    Is_Access_Type (synthesized)
2020--       Applies to all entities, true for access types and subtypes
2021
2022--    Is_Ada_2005_Only (Flag185)
2023--       Defined in all entities, true if a valid pragma Ada_05 or Ada_2005
2024--       applies to the entity which specifically names the entity, indicating
2025--       that the entity is Ada 2005 only. Note that this flag is not set if
2026--       the entity is part of a unit compiled with the normal no-argument form
2027--       of pragma Ada_05 or Ada_2005.
2028
2029--    Is_Ada_2012_Only (Flag199)
2030--       Defined in all entities, true if a valid pragma Ada_12 or Ada_2012
2031--       applies to the entity which specifically names the entity, indicating
2032--       that the entity is Ada 2012 only. Note that this flag is not set if
2033--       the entity is part of a unit compiled with the normal no-argument form
2034--       of pragma Ada_12 or Ada_2012.
2035
2036--    Is_Aliased (Flag15)
2037--       Defined in all entities. Set for objects and types whose declarations
2038--       carry the keyword aliased, and on record components that have the
2039--       keyword. For Ada 2012, also applies to formal parameters.
2040
2041--    Is_AST_Entry (Flag132)
2042--       Defined in entry entities. Set if a valid pragma AST_Entry applies
2043--       to the entry. This flag can only be set in OpenVMS versions of GNAT.
2044--       Note: we also allow the flag to appear in entry families, but given
2045--       the current implementation of the pragma AST_Entry, this flag will
2046--       always be False in entry families.
2047
2048--    Is_Atomic (Flag85)
2049--       Defined in all type entities, and also in constants, components and
2050--       variables. Set if a pragma Atomic or Shared applies to the entity.
2051--       In the case of private and incomplete types, this flag is set in
2052--       both the partial view and the full view.
2053
2054--    Is_Array_Type (synthesized)
2055--       Applies to all entities, true for array types and subtypes
2056
2057--    Is_Asynchronous (Flag81)
2058--       Defined in all type entities and in procedure entities. Set
2059--       if a pragma Asynchronous applies to the entity.
2060
2061--    Is_Base_Type (synthesized)
2062--       Applies to type and subtype entities. True if entity is a base type
2063
2064--    Is_Bit_Packed_Array (Flag122) [implementation base type only]
2065--       Defined in all entities. This flag is set for a packed array type that
2066--       is bit packed (i.e. the component size is known by the front end and
2067--       is in the range 1-7, 9-15, 17-31, or 33-63). Is_Packed is always set
2068--       if Is_Bit_Packed_Array is set, but it is possible for Is_Packed to be
2069--       set without Is_Bit_Packed_Array for the case of an array having one or
2070--       more index types that are enumeration types with non-standard
2071--       enumeration representations.
2072
2073--    Is_Boolean_Type (synthesized)
2074--       Applies to all entities, true for boolean types and subtypes,
2075--       i.e. Standard.Boolean and all types ultimately derived from it.
2076
2077--    Is_Called (Flag102)
2078--       Defined in subprograms. Returns true if the subprogram is called
2079--       in the unit being compiled or in a unit in the context. Used for
2080--       inlining.
2081
2082--    Is_Character_Type (Flag63)
2083--       Defined in all entities. Set for character types and subtypes,
2084--       i.e. enumeration types that have at least one character literal.
2085
2086--    Is_Child_Unit (Flag73)
2087--       Defined in all entities. Set only for defining entities of program
2088--       units that are child units (but False for subunits).
2089
2090--    Is_Class_Wide_Type (synthesized)
2091--       Applies to all entities, true for class wide types and subtypes
2092
2093--    Is_Class_Wide_Equivalent_Type (Flag35)
2094--       Defined in record types and subtypes. Set to True, if the type acts
2095--       as a class-wide equivalent type, i.e. the Equivalent_Type field of
2096--       some class-wide subtype entity references this record type.
2097
2098--    Is_Compilation_Unit (Flag149)
2099--       Defined in all entities. Set if the entity is a package or subprogram
2100--       entity for a compilation unit other than a subunit (since we treat
2101--       subunits as part of the same compilation operation as the ultimate
2102--       parent, we do not consider them to be separate units for this flag).
2103
2104--    Is_Completely_Hidden (Flag103)
2105--       Defined in all entities. This flag can be set only for E_Discriminant
2106--       entities. This flag can be set only for girder discriminants of
2107--       untagged types. When set, the entity is a girder discriminant of a
2108--       derived untagged type which is not directly visible in the derived
2109--       type because the derived type or one of its ancestors have renamed the
2110--       discriminants in the root type. Note: there are girder discriminants
2111--       which are not Completely_Hidden (e.g. discriminants of a root type).
2112
2113--    Is_Composite_Type (synthesized)
2114--       Applies to all entities, true for all composite types and
2115--       subtypes. Either Is_Composite_Type or Is_Elementary_Type (but
2116--       not both) is true of any type.
2117
2118--    Is_Concurrent_Record_Type (Flag20)
2119--       Defined in record types and subtypes. Set if the type was created
2120--       by the expander to represent a task or protected type. For every
2121--       concurrent type, such as record type is constructed, and task and
2122--       protected objects are instances of this record type at runtime
2123--       (Gigi will replace declarations of the concurrent type using the
2124--       declarations of the corresponding record type). See package Exp_Ch9
2125--       for further details.
2126
2127--    Is_Concurrent_Type (synthesized)
2128--       Applies to all entities, true for task types and subtypes and for
2129--       protected types and subtypes.
2130
2131--    Is_Constant_Object (synthesized)
2132--       Applies to all entities, true for E_Constant, E_Loop_Parameter, and
2133--       E_In_Parameter entities.
2134
2135--    Is_Constrained (Flag12)
2136--       Defined in types or subtypes which may have index, discriminant
2137--       or range constraint (i.e. array types and subtypes, record types
2138--       and subtypes, string types and subtypes, and all numeric types).
2139--       Set if the type or subtype is constrained.
2140
2141--    Is_Constr_Subt_For_U_Nominal (Flag80)
2142--       Defined in all types and subtypes. Set true only for the constructed
2143--       subtype of an object whose nominal subtype is unconstrained. Note
2144--       that the constructed subtype itself will be constrained.
2145
2146--    Is_Constr_Subt_For_UN_Aliased (Flag141)
2147--       Defined in all types and subtypes. This flag can be set only if
2148--       Is_Constr_Subt_For_U_Nominal is also set. It indicates that in
2149--       addition the object concerned is aliased. This flag is used by
2150--       Gigi to determine whether a template must be constructed.
2151
2152--    Is_Constructor (Flag76)
2153--       Defined in function and procedure entities. Set if a pragma
2154--       CPP_Constructor applies to the subprogram.
2155
2156--    Is_Controlled (Flag42) [base type only]
2157--       Defined in all type entities. Indicates that the type is controlled,
2158--       i.e. is either a descendant of Ada.Finalization.Controlled or of
2159--       Ada.Finalization.Limited_Controlled.
2160
2161--    Is_Controlling_Formal (Flag97)
2162--       Defined in all Formal_Kind entities. Marks the controlling parameters
2163--       of dispatching operations.
2164
2165--    Is_CPP_Class (Flag74)
2166--       Defined in all type entities, set only for tagged types to which a
2167--       valid pragma Import (CPP, ...) or pragma CPP_Class has been applied.
2168
2169--    Is_Decimal_Fixed_Point_Type (synthesized)
2170--       Applies to all type entities, true for decimal fixed point
2171--       types and subtypes.
2172
2173--    Is_Descendent_Of_Address (Flag223)
2174--       Defined in all type and subtype entities. Indicates that a type is an
2175--       address type that is visibly a numeric type. Used for semantic checks
2176--       on VMS to remove ambiguities in universal integer expressions that may
2177--       have an address interpretation
2178
2179--    Is_Discrete_Type (synthesized)
2180--       Applies to all entities, true for all discrete types and subtypes
2181
2182--    Is_Discrete_Or_Fixed_Point_Type (synthesized)
2183--       Applies to all entities, true for all discrete types and subtypes
2184--       and all fixed-point types and subtypes.
2185
2186--    Is_Discrim_SO_Function (Flag176)
2187--       Defined in all entities. Set only in E_Function entities that Layout
2188--       creates to compute discriminant-dependent dynamic size/offset values.
2189
2190--    Is_Discriminal (synthesized)
2191--       Applies to all entities, true for renamings of discriminants. Such
2192--       entities appear as constants or IN parameters.
2193
2194--    Is_Dispatch_Table_Entity (Flag234)
2195--       Applies to all entities. Set to indicate to the backend that this
2196--       entity is associated with a dispatch table.
2197
2198--    Is_Dispatching_Operation (Flag6)
2199--       Defined in all entities. Set true for procedures, functions,
2200--       generic procedures and generic functions if the corresponding
2201--       operation is dispatching.
2202
2203--    Is_Dynamic_Scope (synthesized)
2204--       Applies to all Entities. Returns True if the entity is a dynamic
2205--       scope (i.e. a block, subprogram, task_type, entry
2206--       or extended return statement).
2207
2208--    Is_Elementary_Type (synthesized)
2209--       Applies to all entities, true for all elementary types and
2210--       subtypes. Either Is_Composite_Type or Is_Elementary_Type (but
2211--       not both) is true of any type.
2212
2213--    Is_Eliminated (Flag124)
2214--       Defined in type entities, subprogram entities, and object entities.
2215--       Indicates that the corresponding entity has been eliminated by use
2216--       of pragma Eliminate. Also used to mark subprogram entities whose
2217--       declaration and body are within unreachable code that is removed.
2218
2219--    Is_Enumeration_Type (synthesized)
2220--       Defined in all entities, true for enumeration types and subtypes
2221
2222--    Is_Entry (synthesized)
2223--       Applies to all entities, True only for entry and entry family
2224--       entities and False for all other entity kinds.
2225
2226--    Is_Entry_Formal (Flag52)
2227--       Defined in all entities. Set only for entry formals (which can
2228--       only be in, in-out or out parameters). This flag is used to speed
2229--       up the test for the need to replace references in Exp_Ch2.
2230
2231--    Is_Exported (Flag99)
2232--       Defined in all entities. Set if the entity is exported. For now we
2233--       only allow the export of constants, exceptions, functions, procedures
2234--       and variables, but that may well change later on. Exceptions can only
2235--       be exported in the OpenVMS and Java VM implementations of GNAT.
2236
2237--    Is_Finalizer (synthesized)
2238--       Applies to all entities, true for procedures containing finalization
2239--       code to process local or library level objects.
2240
2241--    Is_First_Subtype (Flag70)
2242--       Defined in all entities. True for first subtypes (RM 3.2.1(6)),
2243--       i.e. the entity in the type declaration that introduced the type.
2244--       This may be the base type itself (e.g. for record declarations and
2245--       enumeration type declarations), or it may be the first subtype of
2246--       an anonymous base type (e.g. for integer type declarations or
2247--       constrained array declarations).
2248
2249--    Is_Fixed_Point_Type (synthesized)
2250--       Applies to all entities, true for decimal and ordinary fixed
2251--       point types and subtypes
2252
2253--    Is_Floating_Point_Type (synthesized)
2254--       Applies to all entities, true for float types and subtypes
2255
2256--    Is_Formal (synthesized)
2257--       Applies to all entities, true for IN, IN OUT and OUT parameters
2258
2259--    Is_Formal_Object (synthesized)
2260--       Applies to all entities, true for generic IN and IN OUT parameters
2261
2262--    Is_Formal_Subprogram (Flag111)
2263--       Defined in all entities. Set for generic formal subprograms.
2264
2265--    Is_For_Access_Subtype (Flag118)
2266--       Defined in E_Private_Subtype and E_Record_Subtype entities. Means the
2267--       sole purpose of the type is to be designated by an Access_Subtype and
2268--       hence should not be expanded into components because the type may not
2269--       have been found or frozen yet.
2270
2271--    Is_Frozen (Flag4)
2272--       Defined in all type and subtype entities. Set if type or subtype has
2273--       been frozen.
2274
2275--    Is_Generic_Actual_Type (Flag94)
2276--       Defined in all type and subtype entities. Set in the subtype
2277--       declaration that renames the generic formal as a subtype of the
2278--       actual. Guarantees that the subtype is not static within the instance.
2279
2280--    Is_Generic_Instance (Flag130)
2281--       Defined in all entities. Set to indicate that the entity is an
2282--       instance of a generic unit, or a formal package (which is an instance
2283--       of the template).
2284
2285--    Is_Generic_Subprogram (synthesized)
2286--       Applies to all entities. Yields True for a generic subprogram
2287--       (generic function, generic subprogram), False for all other entities.
2288
2289--    Is_Generic_Type (Flag13)
2290--       Defined in all entities. Set for types which are generic formal types.
2291--       Such types have an Ekind that corresponds to their classification, so
2292--       the Ekind cannot be used to identify generic formal types.
2293
2294--    Is_Generic_Unit (synthesized)
2295--       Applies to all entities. Yields True for a generic unit (generic
2296--       package, generic function, generic procedure), and False for all
2297--       other entities.
2298
2299--    Is_Hidden (Flag57)
2300--       Defined in all entities. Set true for all entities declared in the
2301--       private part or body of a package. Also marks generic formals of a
2302--       formal package declared without a box. For library level entities,
2303--       this flag is set if the entity is not publicly visible. This flag
2304--       is reset when compiling the body of the package where the entity
2305--       is declared, when compiling the private part or body of a public
2306--       child unit, and when compiling a private child unit (see Install_
2307--       Private_Declaration in sem_ch7).
2308
2309--    Is_Hidden_Open_Scope (Flag171)
2310--       Defined in all entities. Set true for a scope that contains the
2311--       instantiation of a child unit, and whose entities are not visible
2312--       during analysis of the instance.
2313
2314--    Is_Immediately_Visible (Flag7)
2315--       Defined in all entities. Set if entity is immediately visible, i.e.
2316--       is defined in some currently open scope (RM 8.3(4)).
2317
2318--    Is_Implementation_Defined (Flag254)
2319--       Defined in all entities. Set if a pragma Implementation_Defined is
2320--       applied to the pragma. Used to mark all implementation defined
2321--       identifiers in standard library packages, and to implement the
2322--       restriction No_Implementation_Identifiers.
2323
2324--    Is_Imported (Flag24)
2325--       Defined in all entities. Set if the entity is imported. For now we
2326--       only allow the import of exceptions, functions, procedures, packages.
2327--       and variables. Exceptions can only be imported in the OpenVMS and
2328--       Java VM implementations of GNAT. Packages and types can only be
2329--       imported in the Java VM implementation.
2330
2331--    Is_Incomplete_Or_Private_Type (synthesized)
2332--       Applies to all entities, true for private and incomplete types
2333
2334--    Is_Incomplete_Type (synthesized)
2335--       Applies to all entities, true for incomplete types and subtypes
2336
2337--    Is_Inlined (Flag11)
2338--       Defined in all entities. Set for functions and procedures which are
2339--       to be inlined. For subprograms created during expansion, this flag
2340--       may be set directly by the expander to request inlining. Also set
2341--       for packages that contain inlined subprograms, whose bodies must be
2342--       be compiled. Is_Inlined is also set on generic subprograms and is
2343--       inherited by their instances. It is also set on the body entities
2344--       of inlined subprograms. See also Has_Pragma_Inline.
2345
2346--    Is_Input_State (synthesized)
2347--       Applies to all entities, true for abstract states that are subject to
2348--       property Input.
2349
2350--    Is_Instantiated (Flag126)
2351--       Defined in generic packages and generic subprograms. Set if the unit
2352--       is instantiated from somewhere in the extended main source unit. This
2353--       flag is used to control warnings about the unit being uninstantiated.
2354--       Also set in a package that is used as an actual for a generic package
2355--       formal in an instantiation. Also set on a parent instance, in the
2356--       instantiation of a child, which is implicitly declared in the parent.
2357
2358--    Is_Integer_Type (synthesized)
2359--       Applies to all entities, true for integer types and subtypes
2360
2361--    Is_Interface (Flag186)
2362--       Defined in record types and subtypes. Set to indicate that the current
2363--       entity corresponds with an abstract interface. Because abstract
2364--       interfaces are conceptually a special kind of abstract tagged types
2365--       we represent them by means of tagged record types and subtypes
2366--       marked with this attribute. This allows us to reuse most of the
2367--       compiler support for abstract tagged types to implement interfaces
2368--       (Ada 2005: AI-251).
2369
2370--    Is_Internal (Flag17)
2371--       Defined in all entities. Set to indicate an entity created during
2372--       semantic processing (e.g. an implicit type, or a temporary). The
2373--       current uses of this flag are:
2374--
2375--         1) Internal entities (such as temporaries generated for the result
2376--         of an inlined function call or dummy variables generated for the
2377--         debugger). Set to indicate that they need not be initialized, even
2378--         when scalars are initialized or normalized;
2379--
2380--         2) Predefined primitives of tagged types. Set to mark that they
2381--         have specific properties: first they are primitives even if they
2382--         are not defined in the type scope (the freezing point is not
2383--         necessarily in the same scope), and second the predefined equality
2384--         can be overridden by a user-defined equality, no body will be
2385--         generated in this case.
2386--
2387--         3) Object declarations generated by the expander that are implicitly
2388--         imported or exported so that they can be marked in Sprint output.
2389--
2390--         4) Internal entities in the list of primitives of tagged types that
2391--         are used to handle secondary dispatch tables. These entities have
2392--         also the attribute Interface_Alias.
2393
2394--    Is_Interrupt_Handler (Flag89)
2395--       Defined in procedures. Set if a pragma Interrupt_Handler applies
2396--       to the procedure. The procedure must be parameterless, and on all
2397--       targets except AAMP it must be a protected procedure.
2398
2399--    Is_Intrinsic_Subprogram (Flag64)
2400--       Defined in functions and procedures. It is set if a valid pragma
2401--       Interface or Import is present for this subprogram specifying pragma
2402--       Intrinsic. Valid means that the name and profile of the subprogram
2403--       match the requirements of one of the recognized intrinsic subprograms
2404--       (see package Sem_Intr for details). Note: the value of Convention for
2405--       such an entity will be set to Convention_Intrinsic, but it is the
2406--       setting of Is_Intrinsic_Subprogram, NOT simply having convention set
2407--       to intrinsic, which causes intrinsic code to be generated.
2408
2409--    Is_Itype (Flag91)
2410--       Defined in all entities. Set to indicate that a type is an Itype,
2411--       which means that the declaration for the type does not appear
2412--       explicitly in the tree. Instead gigi will elaborate the type when it
2413--       is first used. Has_Delayed_Freeze can be set for Itypes, and the
2414--       meaning is that the first use (the one which causes the type to be
2415--       defined) will be the freeze node. Note that an important restriction
2416--       on Itypes is that the first use of such a type (the one that causes it
2417--       to be defined) must be in the same scope as the type.
2418
2419--    Is_Known_Non_Null (Flag37)
2420--       Defined in all entities. Relevant (and can be set True) only for
2421--       objects of an access type. It is set if the object is currently
2422--       known to have a non-null value (meaning that no access checks
2423--       are needed). The indication can for example come from assignment
2424--       of an access parameter or an allocator whose value is known non-null.
2425--
2426--       Note: this flag is set according to the sequential flow of the
2427--       program, watching the current value of the variable. However,
2428--       this processing can miss cases of changing the value of an aliased
2429--       or constant object, so even if this flag is set, it should not
2430--       be believed if the variable is aliased or volatile. It would
2431--       be a little neater to avoid the flag being set in the first
2432--       place in such cases, but that's trickier, and there is only
2433--       one place that tests the value anyway.
2434--
2435--       The flag is dynamically set and reset as semantic analysis and
2436--       expansion proceeds. Its value is meaningless once the tree is
2437--       fully constructed, since it simply indicates the last state.
2438--       Thus this flag has no meaning to the back end.
2439
2440--    Is_Known_Null (Flag204)
2441--       Defined in all entities. Relevant (and can be set True) only for
2442--       objects of an access type. It is set if the object is currently known
2443--       to have a null value (meaning that a dereference will surely raise
2444--       constraint error exception). The indication can come from an
2445--       assignment or object declaration.
2446--
2447--       The comments above about sequential flow and aliased and volatile for
2448--       the Is_Known_Non_Null flag apply equally to the Is_Known_Null flag.
2449
2450--    Is_Known_Valid (Flag170)
2451--       Defined in all entities. Relevant for types (and subtype) and
2452--       for objects (and enumeration literals) of a discrete type.
2453--
2454--       The purpose of this flag is to implement the requirement stated
2455--       in (RM 13.9.1(9-11)) which require that the use of possibly invalid
2456--       values may not cause programs to become erroneous. See the function
2457--       Checks.Expr_Known_Valid for further details. Note that the setting
2458--       is conservative, in the sense that if the flag is set, it must be
2459--       right. If the flag is not set, nothing is known about the validity.
2460--
2461--       For enumeration literals, the flag is always set, since clearly
2462--       an enumeration literal represents a valid value. Range checks
2463--       where necessary will ensure that this valid value is appropriate.
2464--
2465--       For objects, the flag indicates the state of knowledge about the
2466--       current value of the object. This may be modified during expansion,
2467--       and thus the final value is not relevant to gigi.
2468--
2469--       For types and subtypes, the flag is set if all possible bit patterns
2470--       of length Object_Size (i.e. Esize of the type) represent valid values
2471--       of the type. In general for such tytpes, all values are valid, the
2472--       only exception being the case where an object of the type has an
2473--       explicit size that is greater than Object_Size.
2474--
2475--       For non-discrete objects, the setting of the Is_Known_Valid flag is
2476--       not defined, and is not relevant, since the considerations of the
2477--       requirement in (RM 13.9.1(9-11)) do not apply.
2478--
2479--       The flag is dynamically set and reset as semantic analysis and
2480--       expansion proceeds. Its value is meaningless once the tree is
2481--       fully constructed, since it simply indicates the last state.
2482--       Thus this flag has no meaning to the back end.
2483
2484--    Is_Limited_Composite (Flag106)
2485--       Defined in all entities. Set for composite types that have a limited
2486--       component. Used to enforce the rule that operations on the composite
2487--       type that depend on the full view of the component do not become
2488--       visible until the immediate scope of the composite type itself
2489--       (RM 7.3.1 (5)).
2490
2491--    Is_Limited_Interface (Flag197)
2492--       Defined in record types and subtypes. True for interface types, if
2493--       interface is declared limited, task, protected, or synchronized, or
2494--       is derived from a limited interface.
2495
2496--    Is_Limited_Record (Flag25)
2497--       Defined in all entities. Set to true for record (sub)types if the
2498--       record is declared to be limited. Note that this flag is not set
2499--       simply because some components of the record are limited.
2500
2501--    Is_Local_Anonymous_Access (Flag194)
2502--       Defined in access types. Set for an anonymous access type to indicate
2503--       that the type is created for a record component with an access
2504--       definition, an array component, or (pre-Ada 2012) a standalone object.
2505--       Such anonymous types have an accessibility level equal to that of the
2506--       declaration in which they appear, unlike the anonymous access types
2507--       that are created for access parameters, access discriminants, and
2508--       (as of Ada 2012) stand-alone objects.
2509
2510--    Is_Machine_Code_Subprogram (Flag137)
2511--       Defined in subprogram entities. Set to indicate that the subprogram
2512--       is a machine code subprogram (i.e. its body includes at least one
2513--       code statement). Also indicates that all necessary semantic checks
2514--       as required by RM 13.8(3) have been performed.
2515
2516--    Is_Modular_Integer_Type (synthesized)
2517--       Applies to all entities. True if entity is a modular integer type
2518
2519--    Is_Non_Static_Subtype (Flag109)
2520--       Defined in all type and subtype entities. It is set in some (but not
2521--       all) cases in which a subtype is known to be non-static. Before this
2522--       flag was added, the computation of whether a subtype was static was
2523--       entirely synthesized, by looking at the bounds, and the immediate
2524--       subtype parent. However, this method does not work for some Itypes
2525--       that have no parent set (and the only way to find the immediate
2526--       subtype parent is to go through the tree). For now, this flay is set
2527--       conservatively, i.e. if it is set then for sure the subtype is non-
2528--       static, but if it is not set, then the type may or may not be static.
2529--       Thus the test for a static subtype is that this flag is clear AND that
2530--       the bounds are static AND that the parent subtype (if available to be
2531--       tested) is static. Eventually we should make sure this flag is always
2532--       set right, at which point, these comments can be removed, and the
2533--       tests for static subtypes greatly simplified.
2534
2535--    Is_Null_Init_Proc (Flag178)
2536--       Defined in procedure entities. Set for generated init proc procedures
2537--       (used to initialize composite types), if the code for the procedure
2538--       is null (i.e. is a return and nothing else). Such null initialization
2539--       procedures are generated in case some client is compiled using the
2540--       Initialize_Scalars pragma, generating a call to this null procedure,
2541--       but there is no need to call such procedures within a compilation
2542--       unit, and this flag is used to suppress such calls.
2543
2544--    Is_Null_State (synthesized)
2545--       Applies to all entities, true for an abstract state declared with
2546--       keyword null.
2547
2548--    Is_Numeric_Type (synthesized)
2549--       Applies to all entities, true for all numeric types and subtypes
2550--       (integer, fixed, float).
2551
2552--    Is_Object (synthesized)
2553--       Applies to all entities, true for entities representing objects,
2554--       including generic formal parameters.
2555
2556--    Is_Obsolescent (Flag153)
2557--       Defined in all entities. Set for any entity for which a valid pragma
2558--       Obsolescent applies.
2559
2560--    Is_Only_Out_Parameter (Flag226)
2561--       Defined in formal parameter entities. Set if this parameter is the
2562--       only OUT parameter for this formal part. If there is more than one
2563--       out parameter, or if there is some other IN OUT parameter then this
2564--       flag is not set in any of them. Used in generation of warnings.
2565
2566--    Is_Optional_Parameter (Flag134)
2567--       Defined in parameter entities. Set if the parameter is specified as
2568--       optional by use of a First_Optional_Parameter argument to one of the
2569--       extended Import pragmas. Can only be set for OpenVMS versions of GNAT.
2570
2571--    Is_Ordinary_Fixed_Point_Type (synthesized)
2572--       Applies to all entities, true for ordinary fixed point types and
2573--       subtypes.
2574
2575--    Is_Output_State (synthesized)
2576--       Applies to all entities, true for abstract states that are subject to
2577--       property Output.
2578
2579--    Is_Package_Or_Generic_Package (synthesized)
2580--       Applies to all entities. True for packages and generic packages.
2581--       False for all other entities.
2582
2583--    Is_Package_Body_Entity (Flag160)
2584--       Defined in all entities. Set for entities defined at the top level
2585--       of a package body. Used to control externally generated names.
2586
2587--    Is_Packed (Flag51) [implementation base type only]
2588--       Defined in all type entities. This flag is set only for record and
2589--       array types which have a packed representation. There are three
2590--       cases which cause packing:
2591--
2592--         1. Explicit use of pragma Pack for an array of package components
2593--         2. Explicit use of pragma Pack to pack a record
2594--         4. Setting Component_Size of an array to a bit-packable value
2595--         3. Indexing an array with a non-standard enumeration type.
2596--
2597--       For records, Is_Packed is always set if Has_Pragma_Pack is set,
2598--       and can also be set on its own in a derived type which inherited
2599--       its packed status.
2600--
2601--       For arrays, Is_Packed is set if an array is bit packed (i.e. the
2602--       component size is known at compile time and is 1-7, 9-15 or 17-31),
2603--       or if the array has one or more index types that are enumeration
2604--       types with non-standard representations (in GNAT, we store such
2605--       arrays compactly, using the Pos of the enumeration type value).
2606--
2607--       As for the case of records, Is_Packed can be set on its own for a
2608--       derived type, with the same dual before/after freeze meaning.
2609--       Is_Packed can also be set as the result of an explicit component
2610--       size clause that specifies an appropriate component size.
2611--
2612--       In the bit packed array case, Is_Bit_Packed_Array will be set in
2613--       the bit packed case once the array type is frozen.
2614--
2615--       Before an array type is frozen, Is_Packed will always be set if
2616--       Has_Pragma_Pack is set. Before the freeze point, it is not possible
2617--       to know the component size, since the component type is not frozen
2618--       until the array type is frozen. Thus Is_Packed for an array type
2619--       before it is frozen means that packed is required. Then if it turns
2620--       out that the component size is not suitable for bit packing, the
2621--       Is_Packed flag gets turned off.
2622
2623--    Is_Packed_Array_Type (Flag138)
2624--       Defined in all entities. This flag is set on the entity for the type
2625--       used to implement a packed array (either a modular type, or a subtype
2626--       of Packed_Bytes{1,2,4} as appropriate). The flag is set if and only
2627--       if the type appears in the Packed_Array_Type field of some other type
2628--       entity. It is used by Gigi to activate the special processing for such
2629--       types (unchecked conversions that would not otherwise be allowed are
2630--       allowed for such types). If the Is_Packed_Array_Type flag is set in
2631--       an entity, then the Original_Array_Type field of this entity points
2632--       to the original array type for which this is the packed array type.
2633
2634--    Is_Potentially_Use_Visible (Flag9)
2635--       Defined in all entities. Set if entity is potentially use visible,
2636--       i.e. it is defined in a package that appears in a currently active
2637--       use clause (RM 8.4(8)). Note that potentially use visible entities
2638--       are not necessarily use visible (RM 8.4(9-11)).
2639
2640--    Is_Preelaborated (Flag59)
2641--       Defined in all entities, set in E_Package and E_Generic_Package
2642--       entities to which a pragma Preelaborate is applied, and also in
2643--       all entities within such packages. Note that the fact that this
2644--       flag is set does not necesarily mean that no elaboration code is
2645--       generated for the package.
2646
2647--    Is_Primitive (Flag218)
2648--       Defined in overloadable entities and in generic subprograms. Set to
2649--       indicate that this is a primitive operation of some type, which may
2650--       be a tagged type or a non-tagged type. Used to verify overriding
2651--       indicators in bodies.
2652
2653--    Is_Primitive_Wrapper (Flag195)
2654--       Defined in functions and procedures created by the expander to serve
2655--       as an indirection mechanism to overriding primitives of concurrent
2656--       types, entries and protected procedures.
2657
2658--    Is_Prival (synthesized)
2659--       Applies to all entities, true for renamings of private protected
2660--       components. Such entities appear as constants or variables.
2661
2662--    Is_Private_Composite (Flag107)
2663--       Defined in composite types that have a private component. Used to
2664--       enforce the rule that operations on the composite type that depend
2665--       on the full view of the component, do not become visible until the
2666--       immediate scope of the composite type itself (7.3.1 (5)). Both this
2667--       flag and Is_Limited_Composite are needed.
2668
2669--    Is_Private_Descendant (Flag53)
2670--       Defined in entities that can represent library units (packages,
2671--       functions, procedures). Set if the library unit is itself a private
2672--       child unit, or if it is the descendent of a private child unit.
2673
2674--    Is_Private_Primitive (Flag245)
2675--       Defined in subprograms. Set if the operation is a primitive of a
2676--       tagged type (procedure or function dispatching on result) whose
2677--       full view has not been seen. Used in particular for primitive
2678--       subprograms of a synchronized type declared between the two views
2679--       of the type, so that the wrapper built for such a subprogram can
2680--       be given the proper signature.
2681
2682--    Is_Private_Type (synthesized)
2683--       Applies to all entities, true for private types and subtypes,
2684--       as well as for record with private types as subtypes
2685
2686--    Is_Processed_Transient (Flag252)
2687--       Defined in entities of variables and constants. Set when a transient
2688--       object needs to be finalized and it has already been processed by the
2689--       transient scope machinery. This flag signals the general finalization
2690--       mechanism to ignore the transient object.
2691
2692--    Is_Protected_Component (synthesized)
2693--       Applicable to all entities, true if the entity denotes a private
2694--       component of a protected type.
2695
2696--    Is_Protected_Interface (synthesized)
2697--       Defined in types that are interfaces. True if interface is declared
2698--       protected, or is derived from protected interfaces.
2699
2700--    Is_Protected_Type (synthesized)
2701--       Applies to all entities, true for protected types and subtypes
2702
2703--    Is_Public (Flag10)
2704--       Defined in all entities. Set to indicate that an entity defined in
2705--       one compilation unit can be referenced from other compilation units.
2706--       If this reference causes a reference in the generated variable, for
2707--       example in the case of a variable name, then Gigi will generate an
2708--       appropriate external name for use by the linker.
2709
2710--    Is_Protected_Record_Type (synthesized)
2711--       Applies to all entities, true if Is_Concurrent_Record_Type is true and
2712--       Corresponding_Concurrent_Type is a protected type.
2713
2714--    Is_Pure (Flag44)
2715--       Defined in all entities. Set in all entities of a unit to which a
2716--       pragma Pure is applied, and also set for the entity of the unit
2717--       itself. In addition, this flag may be set for any other functions
2718--       or procedures that are known to be side effect free, so in the case
2719--       of subprograms, the Is_Pure flag may be used by the optimizer to
2720--       imply that it can assume freedom from side effects (other than those
2721--       resulting from assignment to out parameters, or to objects designated
2722--       by access parameters).
2723
2724--    Is_Pure_Unit_Access_Type (Flag189)
2725--       Defined in access type and subtype entities. Set if the type or
2726--       subtype appears in a pure unit. Used to give an error message at
2727--       freeze time if the access type has a storage pool.
2728
2729--    Is_RACW_Stub_Type (Flag244)
2730--       Defined in all types, true for the stub types generated for remote
2731--       access-to-class-wide types.
2732
2733--    Is_Raised (Flag224)
2734--       Defined in exception entities. Set if the entity is referenced by a
2735--       a raise statement.
2736
2737--    Is_Real_Type (synthesized)
2738--       Applies to all entities, true for real types and subtypes
2739
2740--    Is_Record_Type (synthesized)
2741--       Applies to all entities, true for record types and subtypes,
2742--       includes class-wide types and subtypes (which are also records)
2743
2744--    Is_Remote_Call_Interface (Flag62)
2745--       Defined in all entities. Set in E_Package and E_Generic_Package
2746--       entities to which a pragma Remote_Call_Interface is applied, and
2747--       also on entities declared in the visible part of such a package.
2748
2749--    Is_Remote_Types (Flag61)
2750--       Defined in all entities. Set in E_Package and E_Generic_Package
2751--       entities to which a pragma Remote_Types is applied, and also on
2752--       entities declared in the visible part of the spec of such a package.
2753--       Also set for types which are generic formal types to which the
2754--       pragma Remote_Access_Type applies.
2755
2756--    Is_Renaming_Of_Object (Flag112)
2757--       Defined in all entities, set only for a variable or constant for
2758--       which the Renamed_Object field is non-empty and for which the
2759--       renaming is handled by the front end, by macro substitution of
2760--       a copy of the (evaluated) name tree whereever the variable is used.
2761
2762--    Is_Return_Object (Flag209)
2763--       Defined in all object entities. True if the object is the return
2764--       object of an extended_return_statement; False otherwise.
2765
2766--    Is_Safe_To_Reevaluate (Flag249)
2767--       Defined in all entities. Set in variables that are initialized by
2768--       means of an assignment statement. When initialized their contents
2769--       never change and hence they can be seen by the backend as constants.
2770--       See also Is_True_Constant.
2771
2772--    Is_Scalar_Type (synthesized)
2773--       Applies to all entities, true for scalar types and subtypes
2774
2775--    Is_Shared_Passive (Flag60)
2776--       Defined in all entities. Set in E_Package and E_Generic_Package
2777--       entities to which a pragma Shared_Passive is applied, and also in
2778--       all entities within such packages.
2779
2780--    Is_Standard_Character_Type (synthesized)
2781--       Applies to all entities, true for types and subtypes whose root type
2782--       is one of the standard character types (Character, Wide_Character,
2783--       Wide_Wide_Character).
2784
2785--    Is_Statically_Allocated (Flag28)
2786--       Defined in all entities. This can only be set True for exception,
2787--       variable, constant, and type/subtype entities. If the flag is set,
2788--       then the variable or constant must be allocated statically rather
2789--       than on the local stack frame. For exceptions, the meaning is that
2790--       the exception data should be allocated statically (and indeed this
2791--       flag is always set for exceptions, since exceptions do not have
2792--       local scope). For a type, the meaning is that the type must be
2793--       elaborated at the global level rather than locally. No type marked
2794--       with this flag may depend on a local variable, or on any other type
2795--       which does not also have this flag set to True. For a variable or
2796--       or constant, if the flag is set, then the type of the object must
2797--       either be declared at the library level, or it must also have the
2798--       flag set (since to allocate the object statically, its type must
2799--       also be elaborated globally).
2800
2801--    Is_String_Type (synthesized)
2802--       Applies to all type entities. Determines if the given type is a
2803--       string type, i.e. it is directly a string type or string subtype,
2804--       or a string slice type, or an array type with one dimension and a
2805--       component type that is a character type.
2806
2807--    Is_Subprogram (synthesized)
2808--       Applies to all entities, true for function, procedure and operator
2809--       entities.
2810
2811--    Is_Synchronized_Interface (synthesized)
2812--       Defined in types that are interfaces. True if interface is declared
2813--       synchronized, task, or protected, or is derived from a synchronized
2814--       interface.
2815
2816--    Is_Tag (Flag78)
2817--       Defined in E_Component and E_Constant entities. For regular tagged
2818--       type this flag is set on the tag component (whose name is Name_uTag).
2819--       For CPP_Class tagged types, this flag marks the pointer to the main
2820--       vtable (i.e. the one to be extended by derivation).
2821
2822--    Is_Tagged_Type (Flag55)
2823--       Defined in all entities. Set for an entity for a tagged type.
2824
2825--    Is_Task_Interface (synthesized)
2826--       Defined in types that are interfaces. True if interface is declared as
2827--       a task interface, or if it is derived from task interfaces.
2828
2829--    Is_Task_Record_Type (synthesized)
2830--       Applies to all entities. True if Is_Concurrent_Record_Type
2831--       Corresponding_Concurrent_Type is a task type.
2832
2833--    Is_Task_Type (synthesized)
2834--       Applies to all entities. True for task types and subtypes
2835
2836--    Is_Thunk (Flag225)
2837--       Defined in all entities for subprograms (functions, procedures, and
2838--       operators). True for subprograms that are thunks, that is small
2839--       subprograms built by the expander for tagged types that cover
2840--       interface types. At run-time thunks displace the pointer to the object
2841--       (pointer named "this" in the C++ terminology) from a secondary
2842--       dispatch table to the primary dispatch table associated with a given
2843--       tagged type. Set by Expand_Interface_Thunk and used by Expand_Call to
2844--       handle extra actuals associated with accessibility level.
2845
2846--    Is_Trivial_Subprogram (Flag235)
2847--       Defined in all entities. Set in subprograms where either the body
2848--       consists of a single null statement, or the first or only statement
2849--       of the body raises an exception. This is used for suppressing certain
2850--       warnings, see Sem_Ch6.Analyze_Subprogram_Body discussion for details.
2851
2852--    Is_True_Constant (Flag163)
2853--       Defined in all entities for constants and variables. Set in constants
2854--       and variables which have an initial value specified but which are
2855--       never assigned, partially or in the whole. For variables, it means
2856--       that the variable was initialized but never modified, and hence can be
2857--       treated as a constant by the code generator. For a constant, it means
2858--       that the constant was not modified by generated code (e.g. to set a
2859--       discriminant in an init proc). Assignments by user or generated code
2860--       will reset this flag. See also Is_Safe_To_Reevaluate.
2861
2862--    Is_Type (synthesized)
2863--       Applies to all entities, true for a type entity
2864
2865--    Is_Unchecked_Union (Flag117) [implementation base type only]
2866--       Defined in all entities. Set only in record types to which the
2867--       pragma Unchecked_Union has been validly applied.
2868
2869--    Is_Underlying_Record_View (Flag246) [base type only]
2870--       Defined in all entities. Set only in record types that represent the
2871--       underlying record view. This view is built for derivations of types
2872--       with unknown discriminants; it is a record with the same structure
2873--       as its corresponding record type, but whose parent is the full view
2874--       of the parent in the original type extension.
2875
2876--    Is_Unsigned_Type (Flag144)
2877--       Defined in all types, but can be set only for discrete and fixed-point
2878--       type and subtype entities. This flag is only valid if the entity is
2879--       frozen. If set it indicates that the representation is known to be
2880--       unsigned (i.e. that no negative values appear in the range). This is
2881--       normally just a reflection of the lower bound of the subtype or base
2882--       type, but there is one case in which the setting is non-obvious,
2883--       namely the case of an unsigned subtype of a signed type from which
2884--       a further subtype is obtained using variable bounds. This further
2885--       subtype is still unsigned, but this cannot be determined by looking
2886--       at its bounds or the bounds of the corresponding base type.
2887
2888--    Is_Valued_Procedure (Flag127)
2889--       Defined in procedure entities. Set if an Import_Valued_Procedure
2890--       or Export_Valued_Procedure pragma applies to the procedure entity.
2891
2892--    Is_Visible_Formal (Flag206)
2893--       Defined in all entities. Set True for instances of the formals of a
2894--       formal package. Indicates that the entity must be made visible in the
2895--       body of the instance, to reproduce the visibility of the generic.
2896--       This simplifies visibility settings in instance bodies.
2897
2898--    Is_Visible_Lib_Unit (Flag116)
2899--       Defined in all (root or child) library unit entities. Once compiled,
2900--       library units remain chained to the entities in the parent scope, and
2901--       a separate flag must be used to indicate whether the names are visible
2902--       by selected notation, or not.
2903
2904--    Is_VMS_Exception (Flag133)
2905--       Defined in all entities. Set only for exception entities where the
2906--       exception was specified in an Import_Exception or Export_Exception
2907--       pragma with the VMS option for Form. See description of these pragmas
2908--       for details. This flag can only be set in OpenVMS versions of GNAT.
2909
2910--    Is_Volatile (Flag16)
2911--       Defined in all type entities, and also in constants, components and
2912--       variables. Set if a pragma Volatile applies to the entity. Also set
2913--       if pragma Shared or pragma Atomic applies to entity. In the case of
2914--       private or incomplete types, this flag is set in both the private
2915--       and full view. The flag is not set reliably on private subtypes,
2916--       and is always retrieved from the base type (but this is not a base-
2917--       type-only attribute because it applies to other entities). Note that
2918--       the back end should use Treat_As_Volatile, rather than Is_Volatile
2919--       to indicate code generation requirements for volatile variables.
2920--       Similarly, any front end test which is concerned with suppressing
2921--       optimizations on volatile objects should test Treat_As_Volatile
2922--       rather than testing this flag.
2923
2924--    Is_Volatile_State (synthesized)
2925--       Applies to all entities, true for abstract states that are subject to
2926--       property Volatile.
2927
2928--    Is_Wrapper_Package (synthesized)
2929--       Defined in package entities. Indicates that the package has been
2930--       created as a wrapper for a subprogram instantiation.
2931
2932--    Itype_Printed (Flag202)
2933--       Defined in all type and subtype entities. Set in Itypes if the Itype
2934--       has been printed by Sprint. This is used to avoid printing an Itype
2935--       more than once.
2936
2937--    Kill_Elaboration_Checks (Flag32)
2938--       Defined in all entities. Set by the expander to kill elaboration
2939--       checks which are known not to be needed. Equivalent in effect to
2940--       the use of pragma Suppress (Elaboration_Checks) for that entity
2941--       except that the effect is permanent and cannot be undone by a
2942--       subsequent pragma Unsuppress.
2943
2944--    Kill_Range_Checks (Flag33)
2945--       Defined in all entities. Equivalent in effect to the use of pragma
2946--       Suppress (Range_Checks) for that entity except that the result is
2947--       permanent and cannot be undone by a subsequent pragma Unsuppress.
2948--       This is currently only used in one odd situation in Sem_Ch3 for
2949--       record types, and it would be good to get rid of it???
2950
2951--    Known_To_Have_Preelab_Init (Flag207)
2952--       Defined in all type and subtype entities. If set, then the type is
2953--       known to have preelaborable initialization. In the case of a partial
2954--       view of a private type, it is only possible for this to be set if a
2955--       pragma Preelaborable_Initialization is given for the type. For other
2956--       types, it is never set if the type does not have preelaborable
2957--       initialization, it may or may not be set if the type does have
2958--       preelaborable initialization.
2959
2960--    Last_Assignment (Node26)
2961--       Defined in entities for variables, and OUT or IN OUT formals. Set for
2962--       a local variable or formal to point to the left side of an assignment
2963--       statement assigning a value to the variable. Cleared if the value of
2964--       the entity is referenced. Used to warn about dubious assignment
2965--       statements whose value is not used.
2966
2967--    Last_Entity (Node20)
2968--       Defined in all entities which act as scopes to which a list of
2969--       associated entities is attached (blocks, class subtypes and types,
2970--       entries, functions, loops, packages, procedures, protected objects,
2971--       record types and subtypes, private types, task types and subtypes).
2972--       Points to the last entry in the list of associated entities chained
2973--       through the Next_Entity field. Empty if no entities are chained.
2974
2975--    Last_Formal (synthesized)
2976--       Applies to subprograms and subprogram types, and also in entries
2977--       and entry families. Returns last formal of the subprogram or entry.
2978--       The formals are the first entities declared in a subprogram or in
2979--       a subprogram type (the designated type of an Access_To_Subprogram
2980--       definition) or in an entry.
2981
2982--    Limited_View (Node23)
2983--       Defined in non-generic package entities that are not instances. Bona
2984--       fide package with the limited-view list through the first_entity and
2985--       first_private attributes. The elements of this list are the shadow
2986--       entities created for the types and local packages that are declared
2987--       in a package appearing in a limited_with clause (Ada 2005: AI-50217)
2988
2989--    Lit_Indexes (Node15)
2990--       Defined in enumeration types and subtypes. Non-empty only for the
2991--       case of an enumeration root type, where it contains the entity for
2992--       the generated indexes entity. See unit Exp_Imgv for full details of
2993--       the nature and use of this entity for implementing the Image and
2994--       Value attributes for the enumeration type in question.
2995
2996--    Lit_Strings (Node16)
2997--       Defined in enumeration types and subtypes. Non-empty only for the
2998--       case of an enumeration root type, where it contains the entity for
2999--       the literals string entity. See unit Exp_Imgv for full details of
3000--       the nature and use of this entity for implementing the Image and
3001--       Value attributes for the enumeration type in question.
3002
3003--    Loop_Entry_Attributes (Elist10)
3004--       Defined for loop statement scopes. The list contains all Loop_Entry
3005--       attribute references related to the target loop.
3006
3007--    Low_Bound_Tested (Flag205)
3008--       Defined in all entities. Currently this can only be set True for
3009--       formal parameter entries of a standard unconstrained one-dimensional
3010--       array or string type. Indicates that an explicit test of the low bound
3011--       of the formal appeared in the code, e.g. in a pragma Assert. If this
3012--       flag is set, warnings about assuming the index low bound to be one
3013--       are suppressed.
3014
3015--    Machine_Radix_10 (Flag84)
3016--       Defined in decimal types and subtypes, set if the Machine_Radix is 10,
3017--       as the result of the specification of a machine radix representation
3018--       clause. Note that it is possible for this flag to be set without
3019--       having Has_Machine_Radix_Clause True. This happens when a type is
3020--       derived from a type with a clause present.
3021
3022--    Master_Id (Node17)
3023--       Defined in access types and subtypes. Empty unless Has_Task is
3024--       set for the designated type, in which case it points to the entity
3025--       for the Master_Id for the access type master. Also set for access-to-
3026--       limited-class-wide types whose root may be extended with task
3027--       components, and for access-to-limited-interfaces because they can be
3028--       used to reference tasks implementing such interface.
3029
3030--    Materialize_Entity (Flag168)
3031--       Defined in all entities. Set only for renamed obects which should be
3032--       materialized for debugging purposes. This means that a memory location
3033--       containing the renamed address should be allocated. This is needed so
3034--       that the debugger can find the entity.
3035
3036--    Mechanism (Uint8) (returned as Mechanism_Type)
3037--       Defined in functions and non-generic formal parameters. Indicates
3038--       the mechanism to be used for the function return or for the formal
3039--       parameter. See separate section on passing mechanisms. This field
3040--       is also set (to the default value of zero) in a subprogram body
3041--       entity but not used in this context.
3042
3043--    Modulus (Uint17) [base type only]
3044--       Defined in modular types. Contains the modulus. For the binary case,
3045--       this will be a power of 2, but if Non_Binary_Modulus is set, then it
3046--       will not be a power of 2.
3047
3048--    Must_Be_On_Byte_Boundary (Flag183)
3049--       Defined in entities for types and subtypes. Set if objects of the type
3050--       must always be allocated on a byte boundary (more accurately a storage
3051--       unit boundary). The front end checks that component clauses respect
3052--       this rule, and the back end ensures that record packing does not
3053--       violate this rule. Currently the flag is set only for packed arrays
3054--       longer than 64 bits where the component size is not a power of 2.
3055
3056--    Must_Have_Preelab_Init (Flag208)
3057--       Defined in entities for types and subtypes. Set in the full type of a
3058--       private type or subtype if a pragma Has_Preelaborable_Initialization
3059--       is present for the private type. Used to check that the full type has
3060--       preelaborable initialization at freeze time (this has to be deferred
3061--       to the freeze point because of the rule about overriding Initialize).
3062
3063--    Needs_Debug_Info (Flag147)
3064--       Defined in all entities. Set if the entity requires normal debugging
3065--       information to be generated. This is true of all entities that have
3066--       Comes_From_Source set, and also transitively for entities associated
3067--       with such components (e.g. their types). It is true for all entities
3068--       in Debug_Generated_Code mode (-gnatD switch). This is the flag that
3069--       the back end should check to determine whether or not to generate
3070--       debugging information for an entity. Note that callers should always
3071--       use Sem_Util.Set_Debug_Info_Needed, rather than Set_Needs_Debug_Info,
3072--       so that the flag is set properly on subsidiary entities.
3073
3074--    Needs_No_Actuals (Flag22)
3075--       Defined in callable entities (subprograms, entries, access to
3076--       subprograms)  which can be called without actuals because all of
3077--       their formals (if any) have default values. This flag simplifies the
3078--       resolution of the syntactic ambiguity involving a call to these
3079--       entities when the return type is an array type, and a call can be
3080--       interpreted as an indexing of the result of the call. It is also
3081--       used to resolve various cases of entry calls.
3082
3083--    Never_Set_In_Source (Flag115)
3084--       Defined in all entities, but can be set only for variables and
3085--       parameters. This flag is set if the object is never assigned a value
3086--       in user source code, either by assignment or by being used as an out
3087--       or in out parameter. Note that this flag is not reset from using an
3088--       initial value, so if you want to test for this case as well, test the
3089--       Has_Initial_Value flag also.
3090--
3091--       This flag is only for the purposes of issuing warnings, it must not
3092--       be used by the code generator to indicate that the variable is in
3093--       fact a constant, since some assignments in generated code do not
3094--       count (for example, the call to an init proc to assign some but
3095--       not all of the fields in a partially initialized record). The code
3096--       generator should instead use the flag Is_True_Constant.
3097--
3098--       For the purposes of this warning, the default assignment of
3099--       access variables to null is not considered the assignment of
3100--       of a value (so the warning can be given for code that relies
3101--       on this initial null value, when no other value is ever set).
3102--
3103--       In variables and out parameters, if this flag is set after full
3104--       processing of the corresponding declarative unit, it indicates that
3105--       the variable or parameter was never set, and a warning message can
3106--       be issued.
3107--
3108--       Note: this flag is initially set, and then cleared on encountering
3109--       any construct that might conceivably legitimately set the value.
3110--       Thus during the analysis of a declarative region and its associated
3111--       statement sequence, the meaning of the flag is "not set yet", and
3112--       once this analysis is complete the flag means "never assigned".
3113
3114--       Note: for variables appearing in package declarations, this flag
3115--       is never set. That is because there is no way to tell if some
3116--       client modifies the variable (or in the case of variables in the
3117--       private part, if some child unit modifies the variables).
3118
3119--       Note: in the case of renamed objects, the flag must be set in the
3120--       ultimate renamed object. Clients noting a possible modification
3121--       should use the Note_Possible_Modification procedure in Sem_Util
3122--       rather than Set_Never_Set_In_Source precisely to deal properly with
3123--       the renaming possibility.
3124
3125--    Next_Component (synthesized)
3126--       Applies to record components. Returns the next component by following
3127--       the chain of declared entities until one is found which corresponds to
3128--       a component (Ekind is E_Component). Any internal types generated from
3129--       the subtype indications of the record components are skipped. Returns
3130--       Empty if no more components.
3131
3132--    Next_Component_Or_Discriminant (synthesized)
3133--      Similar to Next_Component, but includes components and discriminants
3134--      so the input can have either E_Component or E_Discriminant, and the
3135--      same is true for the result. Returns Empty if no more components or
3136--      discriminants in the record.
3137
3138--    Next_Discriminant (synthesized)
3139--       Applies to discriminants returned by First/Next_Discriminant.
3140--       Returns the next language-defined (ie: perhaps non-girder)
3141--       discriminant by following the chain of declared entities as long as
3142--       the kind of the entity corresponds to a discriminant. Note that the
3143--       discriminants might be the only components of the record.
3144--       Returns Empty if there are no more.
3145
3146--    Next_Entity (Node2)
3147--       Defined in all entities. The entities of a scope are chained, with
3148--       the head of the list being in the First_Entity field of the scope
3149--       entity. All entities use the Next_Entity field as a forward pointer
3150--       for this list, with Empty indicating the end of the list. Since this
3151--       field is in the base part of the entity, the access routines for this
3152--       field are in Sinfo.
3153
3154--    Next_Formal (synthesized)
3155--       Applies to the entity for a formal parameter. Returns the next
3156--       formal parameter of the subprogram or subprogram type. Returns
3157--       Empty if there are no more formals.
3158
3159--    Next_Formal_With_Extras (synthesized)
3160--       Applies to the entity for a formal parameter. Returns the next
3161--       formal parameter of the subprogram or subprogram type. Returns
3162--       Empty if there are no more formals. The list returned includes
3163--       all the extra formals (see description of Extra_Formal field)
3164
3165--    Next_Index (synthesized)
3166--       Applies to array types and subtypes and to string types and
3167--       subtypes. Yields the next index. The first index is obtained by
3168--       using the First_Index attribute, and then subsequent indexes are
3169--       obtained by applying Next_Index to the previous index. Empty is
3170--       returned to indicate that there are no more indexes. Note that
3171--       unlike most attributes in this package, Next_Index applies to
3172--       nodes for the indexes, not to entities.
3173
3174--    Next_Inlined_Subprogram (Node12)
3175--       Defined in subprograms. Used to chain inlined subprograms used in
3176--       the current compilation, in the order in which they must be compiled
3177--       by Gigi to insure that all inlinings are performed.
3178
3179--    Next_Literal (synthesized)
3180--       Applies to enumeration literals, returns the next literal, or
3181--       Empty if applied to the last literal. This is actually a synonym
3182--       for Next, but its use is preferred in this context.
3183
3184--    Non_Binary_Modulus (Flag58) [base type only]
3185--       Defined in all subtype and type entities. Set for modular integer
3186--       types if the modulus value is other than a power of 2.
3187
3188--    Non_Limited_View (Node17)
3189--       Defined in incomplete types that are the shadow entities created
3190--       when analyzing a limited_with_clause (Ada 2005: AI-50217). Points to
3191--       the defining entity in the original declaration.
3192
3193--    Nonzero_Is_True (Flag162) [base type only]
3194--       Defined in enumeration types. True if any non-zero value is to be
3195--       interpreted as true. Currently this is set true for derived Boolean
3196--       types which have a convention of C, C++ or Fortran.
3197
3198--    No_Pool_Assigned (Flag131) [root type only]
3199--       Defined in access types. Set if a storage size clause applies to the
3200--       variable with a static expression value of zero. This flag is used to
3201--       generate errors if any attempt is made to allocate or free an instance
3202--       of such an access type. This is set only in the root type, since
3203--       derived types must have the same pool.
3204
3205--    No_Return (Flag113)
3206--       Defined in all entities. Always false except in the case of procedures
3207--       and generic procedures for which a pragma No_Return is given.
3208
3209--    Normalized_First_Bit (Uint8)
3210--       Defined in components and discriminants. Indicates the normalized
3211--       value of First_Bit for the component, i.e. the offset within the
3212--       lowest addressed storage unit containing part or all of the field.
3213--       Set to No_Uint if no first bit position is assigned yet.
3214
3215--    Normalized_Position (Uint14)
3216--       Defined in components and discriminants. Indicates the normalized
3217--       value of Position for the component, i.e. the offset in storage
3218--       units from the start of the record to the lowest addressed storage
3219--       unit containing part or all of the field.
3220
3221--    Normalized_Position_Max (Uint10)
3222--       Defined in components and discriminants. For almost all cases, this
3223--       is the same as Normalized_Position. The one exception is for the case
3224--       of a discriminated record containing one or more arrays whose length
3225--       depends on discriminants. In this case, the Normalized_Position_Max
3226--       field represents the maximum possible value of Normalized_Position
3227--       assuming min/max values for discriminant subscripts in all fields.
3228--       This is used by Layout in front end layout mode to properly computed
3229--       the maximum size such records (needed for allocation purposes when
3230--       there are default discriminants, and also for the 'Size value).
3231
3232--    No_Strict_Aliasing (Flag136) [base type only]
3233--       Defined in access types. Set to direct the back end to avoid any
3234--       optimizations based on an assumption about the aliasing status of
3235--       objects designated by the access type. For the case of the gcc
3236--       back end, the effect is as though all references to objects of
3237--       the type were compiled with -fno-strict-aliasing. This flag is
3238--       set if an unchecked conversion with the access type as a target
3239--       type occurs in the same source unit as the declaration of the
3240--       access type, or if an explicit pragma No_Strict_Aliasing applies.
3241
3242--    Number_Dimensions (synthesized)
3243--       Applies to array types and subtypes. Returns the number of dimensions
3244--       of the array type or subtype as a value of type Pos.
3245
3246--    Number_Entries (synthesized)
3247--       Applies to concurrent types. Returns the number of entries that are
3248--       declared within the task or protected definition for the type.
3249
3250--    Number_Formals (synthesized)
3251--       Applies to subprograms and subprogram types. Yields the number of
3252--       formals as a value of type Pos.
3253
3254--    OK_To_Rename (Flag247)
3255--       Defined only in entities for variables. If this flag is set, it
3256--       means that if the entity is used as the initial value of an object
3257--       declaration, the object declaration can be safely converted into a
3258--       renaming to avoid an extra copy. This is set for variables which are
3259--       generated by the expander to hold the result of evaluating some
3260--       expression. Most notably, the local variables used to store the result
3261--       of concatenations are so marked (see Exp_Ch4.Expand_Concatenate). It
3262--       is only worth setting this flag for composites, since for primitive
3263--       types, it is cheaper to do the copy.
3264
3265--    OK_To_Reorder_Components (Flag239) [base type only]
3266--       Defined in record types. Set if the back end is permitted to reorder
3267--       the components. If not set, the record must be layed out in the order
3268--       in which the components are declared textually. Currently this flag
3269--       can only be set by debug switches.
3270
3271--    Optimize_Alignment_Space (Flag241)
3272--       Defined in type, subtype, variable, and constant entities. This
3273--       flag records that the type or object is to be layed out in a manner
3274--       consistent with Optimize_Alignment (Space) mode. The compiler and
3275--       binder ensure a consistent view of any given type or object. If pragma
3276--       Optimize_Alignment (Off) mode applies to the type/object, then neither
3277--       of the flags Optimize_Alignment_Space/Optimize_Alignment_Time is set.
3278
3279--    Optimize_Alignment_Time (Flag242)
3280--       Defined in type, subtype, variable, and constant entities. This
3281--       flag records that the type or object is to be layed out in a manner
3282--       consistent with Optimize_Alignment (Time) mode. The compiler and
3283--       binder ensure a consistent view of any given type or object. If pragma
3284--       Optimize_Alignment (Off) mode applies to the type/object, then neither
3285--       of the flags Optimize_Alignment_Space/Optimize_Alignment_Time is set.
3286
3287--    Original_Access_Type (Node26)
3288--       Defined in E_Access_Subprogram_Type entities. Set only if the access
3289--       type was generated by the expander as part of processing an access
3290--       to protected subprogram type. Points to the access to protected
3291--       subprogram type.
3292
3293--    Original_Array_Type (Node21)
3294--       Defined in modular types and array types and subtypes. Set only
3295--       if the Is_Packed_Array_Type flag is set, indicating that the type
3296--       is the implementation type for a packed array, and in this case it
3297--       points to the original array type for which this is the packed
3298--       array implementation type.
3299
3300--    Original_Record_Component (Node22)
3301--       Defined in components, including discriminants. The usage depends
3302--       on whether the record is a base type and whether it is tagged.
3303--
3304--       In base tagged types:
3305--         When the component is inherited in a record extension, it points
3306--         to the original component (the entity of the ancestor component
3307--         which is not itself inherited) otherwise it points to itself.
3308--         Gigi uses this attribute to implement the automatic dereference in
3309--         the extension and to apply the transformation:
3310--
3311--            Rec_Ext.Comp -> Rec_Ext.Parent. ... .Parent.Comp
3312--
3313--       In base non-tagged types:
3314--         Always points to itself except for non-girder discriminants, where
3315--         it points to the girder discriminant it renames.
3316--
3317--       In subtypes (tagged and untagged):
3318--         Points to the component in the base type.
3319
3320--    Overlays_Constant (Flag243)
3321--       Defined in all entities. Set only for a variable for which there is
3322--       an address clause which causes the variable to overlay a constant.
3323
3324--    Overridden_Operation (Node26)
3325--       Defined in subprograms. For overriding operations, points to the
3326--       user-defined parent subprogram that is being overridden. Note: this
3327--       attribute uses the same field as Static_Initialization. The latter
3328--       is only defined for internal initialization procedures, for which
3329--       Overridden_Operation is irrelevant. Thus this attribute must not be
3330--       set for init_procs.
3331
3332--    Package_Instantiation (Node26)
3333--       Defined in packages and generic packages. When defined, this field
3334--       references an N_Generic_Instantiation node associated with an
3335--       instantiated package. In the case where the referenced node has
3336--       been rewritten to an N_Package_Specification, the instantiation
3337--       node is available from the Original_Node field of the package spec
3338--       node. This is currently not guaranteed to be set in all cases, but
3339--       when set, the field is used in Get_Package_Instantiation_Node as
3340--       one of the means of obtaining the instantiation node. Eventually
3341--       it should be set in all cases, including package entities associated
3342--       with formal packages. ???
3343
3344--    Packed_Array_Type (Node23)
3345--       Defined in array types and subtypes, including the string literal
3346--       subtype case, if the corresponding type is packed (either bit packed
3347--       or packed to eliminate holes in non-contiguous enumeration type index
3348--       types). References the type used to represent the packed array, which
3349--       is either a modular type for short static arrays, or an array of
3350--       System.Unsigned. Note that in some situations (internal types, and
3351--       references to fields of variant records), it is not always possible
3352--       to construct this type in advance of its use. If Packed_Array_Type
3353--       is empty, then the necessary type is declared on the fly for each
3354--       reference to the array.
3355
3356--    Parameter_Mode (synthesized)
3357--       Applies to formal parameter entities. This is a synonym for Ekind,
3358--       used when obtaining the formal kind of a formal parameter (the result
3359--       is one of E_[In/Out/In_Out]_Parameter)
3360
3361--    Parent_Subtype (Node19) [base type only]
3362--       Defined in E_Record_Type. Set only for derived tagged types, in which
3363--       case it points to the subtype of the parent type. This is the type
3364--       that is used as the Etype of the _parent field.
3365
3366--    Postcondition_Proc (Node8)
3367--       Defined only in procedure entities, saves the entity of the generated
3368--       postcondition proc if one is present, otherwise is set to Empty. Used
3369--       to generate the call to this procedure in case the expander inserts
3370--       implicit return statements.
3371
3372--    PPC_Wrapper (Node25)
3373--       Defined in entries and entry families. Set only if pre- or post-
3374--       conditions are present. The precondition_wrapper body is the original
3375--       entry call, decorated with the given precondition for the entry.
3376
3377--    Predicate_Function (synthesized)
3378--       Defined in all types. Set for types for which (Has_Predicates is True)
3379--       and for which a predicate procedure has been built that tests that the
3380--       specified predicates are True. Contains the entity for the function
3381--       which takes a single argument of the given type, and returns True if
3382--       the predicate holds and False if it does not.
3383--
3384--       Note: the reason this is marked as a synthesized attribute is that the
3385--       way this is stored is as an element of the Subprograms_For_Type field.
3386
3387--    Primitive_Operations (synthesized)
3388--       Defined in concurrent types, tagged record types and subtypes, tagged
3389--       private types and tagged incomplete types. For concurrent types whose
3390--       Corresponding_Record_Type (CRT) is available, returns the list of
3391--       Direct_Primitive_Operations of its CRT; otherwise returns No_Elist.
3392--       For all the other types returns the Direct_Primitive_Operations.
3393
3394--    Prival (Node17)
3395--       Defined in private components of protected types. Refers to the entity
3396--       of the component renaming declaration generated inside protected
3397--       subprograms, entries or barrier functions.
3398
3399--    Prival_Link (Node20)
3400--       Defined in constants and variables which rename private components of
3401--       protected types. Set to the original private component.
3402
3403--    Private_Dependents (Elist18)
3404--       Defined in private (sub)types. Records the subtypes of the private
3405--       type, derivations from it, and records and arrays with components
3406--       dependent on the type.
3407--
3408--       The subtypes are traversed when installing and deinstalling (the full
3409--       view of) a private type in order to ensure correct view of the
3410--       subtypes.
3411--
3412--       Used in similar fashion for incomplete types: holds list of subtypes
3413--       of these incomplete types that have discriminant constraints. The
3414--       full views of these subtypes are constructed when the full view of
3415--       the incomplete type is processed.
3416
3417--       In addition, if the incomplete type is the designated type in an
3418--       access definition for an access parameter, the operation may be
3419--       a dispatching primitive operation, which is only known when the full
3420--       declaration of the type is seen. Subprograms that have such an
3421--       access parameter are also placed in the list of private_dependents.
3422
3423--    Private_View (Node22)
3424--       For each private type, three entities are allocated, the private view,
3425--       the full view, and the shadow entity. The shadow entity contains a
3426--       copy of the private view and is used for restoring the proper private
3427--       view after a region in which the full view is visible (and is copied
3428--       into the entity normally used for the private view during this period
3429--       of visibility). The Private_View field is self-referential when the
3430--       private view lives in its normal entity, but in the copy that is made
3431--       in the shadow entity, it points to the proper location in which to
3432--       restore the private view saved in the shadow.
3433
3434--    Protected_Formal (Node22)
3435--       Defined in formal parameters (in, in out and out parameters). Used
3436--       only for formals of protected operations. References corresponding
3437--       formal parameter in the unprotected version of the operation that
3438--       is created during expansion.
3439
3440--    Protected_Body_Subprogram (Node11)
3441--       Defined in protected operations. References the entity for the
3442--       subprogram which implements the body of the operation.
3443
3444--    Protection_Object (Node23)
3445--       Applies to protected entries, entry families and subprograms. Denotes
3446--       the entity which is used to rename the _object component of protected
3447--       types.
3448
3449--    Reachable (Flag49)
3450--       Defined in labels. The flag is set over the range of statements in
3451--       which a goto to that label is legal.
3452
3453--    Referenced (Flag156)
3454--       Defined in all entities. Set if the entity is referenced, except for
3455--       the case of an appearance of a simple variable that is not a renaming
3456--       as the left side of an assignment in which case Referenced_As_LHS is
3457--       set instead, or a similar appearance as an out parameter actual, in
3458--       which case Referenced_As_Out_Parameter is set.
3459
3460--    Referenced_As_LHS (Flag36):
3461--       Defined in all entities. This flag is set instead of Referenced if a
3462--       simple variable that is not a renaming appears as the left side of an
3463--       assignment. The reason we distinguish this kind of reference is that
3464--       we have a separate warning for variables that are only assigned and
3465--       never read.
3466
3467--    Referenced_As_Out_Parameter (Flag227):
3468--       Defined in all entities. This flag is set instead of Referenced if a
3469--       simple variable that is not a renaming appears as an actual for an out
3470--       formal. The reason we distinguish this kind of reference is that
3471--       we have a separate warning for variables that are only assigned and
3472--       never read, and out parameters are a special case.
3473
3474--    Refined_State (Node9)
3475--       Defined in E_Abstract_State entities. Contains the entity of the
3476--       abstract state completion which is usually foung in package bodies.
3477
3478--    Register_Exception_Call (Node20)
3479--       Defined in exception entities. When an exception is declared,
3480--       a call is expanded to Register_Exception. This field points to
3481--       the expanded N_Procedure_Call_Statement node for this call. It
3482--       is used for Import/Export_Exception processing to modify the
3483--       register call to make appropriate entries in the special tables
3484--       used for handling these pragmas at runtime.
3485
3486--    Related_Array_Object (Node25)
3487--       Defined in array types and subtypes. Used only for the base type
3488--       and subtype created for an anonymous array object. Set to point
3489--       to the entity of the corresponding array object. Currently used
3490--       only for type-related error messages.
3491
3492--    Related_Expression (Node24)
3493--       Defined in variables and types. Set only for internally generated
3494--       entities, where it may be used to denote the source expression whose
3495--       elaboration created the variable declaration. If set, it is used
3496--       for generating clearer messages from CodePeer.
3497--
3498--       Shouldn't it also be used for the same purpose in errout? It seems
3499--       odd to have two mechanisms here???
3500
3501--    Related_Instance (Node15)
3502--       Defined in the wrapper packages created for subprogram instances.
3503--       The internal subprogram that implements the instance is inside the
3504--       wrapper package, but for debugging purposes its external symbol
3505--       must correspond to the name and scope of the related instance.
3506
3507--    Related_Type (Node27)
3508--       Defined in components, constants and variables. Set when there is an
3509--       associated dispatch table to point to entities containing primary or
3510--       secondary tags. Not set in the _tag component of record types.
3511
3512--    Relative_Deadline_Variable (Node26) [implementation base type only]
3513--       Defined in task type entities. This flag is set if a valid and
3514--       effective pragma Relative_Deadline applies to the base type. Points
3515--       to the entity for a variable that is created to hold the value given
3516--       in a Relative_Deadline pragma for a task type.
3517
3518--    Renamed_Entity (Node18)
3519--       Defined in exceptions, packages, subprograms and generic units. Set
3520--       for entities that are defined by a renaming declaration. Denotes the
3521--       renamed entity, or transitively the ultimate renamed entity if
3522--       there is a chain of renaming declarations. Empty if no renaming.
3523
3524--    Renamed_In_Spec (Flag231)
3525
3526--       Defined in package entities. If a package renaming occurs within
3527--       a package spec, then this flag is set on the renamed package. The
3528--       purpose is to prevent a warning about unused entities in the renamed
3529--       package. Such a warning would be inappropriate since clients of the
3530--       package can see the entities in the package via the renaming.
3531
3532--    Renamed_Object (Node18)
3533--       Defined in all objects (constants, variables, components, formal
3534--       parameters, generic formal parameters, and loop parameters).
3535--       ??? Defined in discriminants?
3536--       Set non-Empty if the object was declared by a renaming declaration,
3537--       in which case it references the tree node for the name of the renamed
3538--       object. This is only possible for the variable and constant cases.
3539--       For formal parameters, this field is used in the course of inline
3540--       expansion, to map the formals of a subprogram into the corresponding
3541--       actuals. For formals of a task entry, it denotes the local renaming
3542--       that replaces the actual within the accept statement. The field is
3543--       Empty otherwise (it is always empty for loop parameters).
3544
3545--    Renaming_Map (Uint9)
3546--       Defined in generic subprograms, generic packages, and their
3547--       instances. Also defined in the instances of the corresponding
3548--       bodies. Denotes the renaming map (generic entities => instance
3549--       entities) used to construct the instance by givin an index into
3550--       the tables used to represent these maps. See Sem_Ch12 for further
3551--       details. The maps for package instances are also used when the
3552--       instance is the actual corresponding to a formal package.
3553
3554--    Requires_Overriding (Flag213)
3555--       Defined in all subprograms and entries. Set for subprograms that
3556--       require overriding as defined by RM-2005-3.9.3(6/2). Note that this
3557--       is True only for implicitly declare subprograms; it is not set on the
3558--       parent type's subprogram. See also Is_Abstract_Subprogram.
3559
3560--    Return_Present (Flag54)
3561--       Defined in function and generic function entities. Set if the
3562--       function contains a return statement (used for error checking).
3563--       This flag can also be set in procedure and generic procedure
3564--       entities (for convenience in setting it), but is only tested
3565--       for the function case.
3566
3567--    Return_Applies_To (Node8)
3568--       Defined in E_Return_Statement. Points to the entity representing
3569--       the construct to which the return statement applies, as defined in
3570--       RM-6.5(4/2). Note that a (simple) return statement within an
3571--       extended_return_statement applies to the extended_return_statement,
3572--       even though it causes the whole function to return.
3573
3574--    Returns_By_Ref (Flag90)
3575--       Defined in function entities, to indicate that the function
3576--       returns the result by reference, either because its return type is a
3577--       by-reference-type or because it uses explicitly the secondary stack.
3578
3579--    Reverse_Bit_Order (Flag164) [base type only]
3580--       Defined in all record type entities. Set if entity has a Bit_Order
3581--       aspect (set by an aspect clause or attribute definition clause) that
3582--       has reversed the order of bits from the default value. When this flag
3583--       is set, a component clause must specify a set of bits entirely within
3584--       a single storage unit (Ada 95) or within a single machine scalar (see
3585--       Ada 2005 AI-133), or must occupy an integral number of storage units.
3586
3587--    Reverse_Storage_Order (Flag93) [base type only]
3588--       Defined in all record and array type entities. Set if entity has a
3589--       Scalar_Storage_Order aspect (set by an aspect clause or attribute
3590--       definition clause) that has reversed the order of storage elements
3591--       from the default value. When this flag is set for a record type,
3592--       the Bit_Order aspect must be set to the same value (either explicitly
3593--       or as the target default value).
3594
3595--    RM_Size (Uint13)
3596--       Defined in all type and subtype entities. Contains the value of
3597--       type'Size as defined in the RM. See also the Esize field and
3598--       and the description on "Handling of Type'Size Values". A value
3599--       of zero in this field for a non-discrete type means that
3600--       the front end has not yet determined the size value. For the
3601--       case of a discrete type, this field is always set by the front
3602--       end and zero is a legitimate value for a type with one value.
3603
3604--    Root_Type (synthesized)
3605--       Applies to all type entities. For class-wide types, return the root
3606--       type of the class covered by the CW type, otherwise returns the
3607--       ultimate derivation ancestor of the given type. This function
3608--       preserves the view, i.e. the Root_Type of a partial view is the
3609--       partial view of the ultimate ancestor, the Root_Type of a full view
3610--       is the full view of the ultimate ancestor. Note that this function
3611--       does not correspond exactly to the use of root type in the RM, since
3612--       in the RM root type applies to a class of types, not to a type.
3613
3614--    Scalar_Range (Node20)
3615--       Defined in all scalar types (including modular types, where the
3616--       bounds are 0 .. modulus - 1). References a node in the tree that
3617--       contains the bounds for the range. Note that this information
3618--       could be obtained by rummaging around the tree, but it is more
3619--       convenient to have it immediately at hand in the entity. The
3620--       contents of Scalar_Range can either be an N_Subtype_Indication
3621--       node (with a constraint), or a Range node, but not a simple
3622--       subtype reference (a subtype is converted into a range).
3623
3624--    Scale_Value (Uint15)
3625--       Defined in decimal fixed-point types and subtypes. Contains the scale
3626--       for the type (i.e. the value of type'Scale = the number of decimal
3627--       digits after the decimal point).
3628
3629--    Scope (Node3)
3630--       Defined in all entities. Points to the entity for the scope (block,
3631--       loop, subprogram, package etc.) in which the entity is declared.
3632--       Since this field is in the base part of the entity node, the access
3633--       routines for this field are in Sinfo. Note that for a child package,
3634--       the Scope will be the parent package, and for a non-child package,
3635--       the Scope will be Standard.
3636
3637--    Scope_Depth (synthesized)
3638--       Applies to program units, blocks, concurrent types and entries, and
3639--       also to record types, i.e. to any entity that can appear on the scope
3640--       stack. Yields the scope depth value, which for those entities other
3641--       than records is simply the scope depth value, for record entities, it
3642--       is the Scope_Depth of the record scope.
3643
3644--    Scope_Depth_Value (Uint22)
3645--       Defined in program units, blocks, concurrent types, and entries.
3646--       Indicates the number of scopes that statically enclose the declaration
3647--       of the unit or type. Library units have a depth of zero. Note that
3648--       record types can act as scopes but do NOT have this field set (see
3649--       Scope_Depth above)
3650
3651--    Scope_Depth_Set (synthesized)
3652--       Applies to a special predicate function that returns a Boolean value
3653--       indicating whether or not the Scope_Depth field has been set. It is
3654--       needed, since returns an invalid value in this case!
3655
3656--    Sec_Stack_Needed_For_Return (Flag167)
3657--       Defined in scope entities (blocks, functions, procedures, tasks,
3658--       entries). Set to True when secondary stack is used to hold the
3659--       returned value of a function and thus should not be released on
3660--       scope exit.
3661
3662--    Shadow_Entities (List14)
3663--       Defined in package and generic package entities. Points to a list
3664--       of entities that correspond to private types. For each private type
3665--       a shadow entity is created that holds a copy of the private view.
3666--       In regions of the program where the full views of these private
3667--       entities are visible, the full view is copied into the entity that
3668--       is normally used to hold the private view, but the shadow entity
3669--       copy is unchanged. The shadow entities are then used to restore the
3670--       original private views at the end of the region. This list is a
3671--       standard format list (i.e. First (Shadow_Entities) is the first
3672--       entry and subsequent entries are obtained using Next.
3673
3674--    Shared_Var_Procs_Instance (Node22)
3675--       Defined in variables. Set non-Empty only if Is_Shared_Passive is
3676--       set, in which case this is the entity for the associated instance of
3677--       System.Shared_Storage.Shared_Var_Procs. See Exp_Smem for full details.
3678
3679--    Size_Check_Code (Node19)
3680--       Defined in constants and variables. Normally Empty. Set if code is
3681--       generated to check the size of the object. This field is used to
3682--       suppress this code if a subsequent address clause is encountered.
3683
3684--    Size_Clause (synthesized)
3685--       Applies to all entities. If a size clause is present in the rep
3686--       item chain for an entity then the attribute definition clause node
3687--       for the size clause is returned. Otherwise Size_Clause returns Empty
3688--       if no item is present. Usually this is only meaningful if the flag
3689--       Has_Size_Clause is set. This is because when the representation item
3690--       chain is copied for a derived type, it can inherit a size clause that
3691--       is not applicable to the entity.
3692
3693--    Size_Depends_On_Discriminant (Flag177)
3694--       Defined in all entities for types and subtypes. Indicates that the
3695--       size of the type depends on the value of one or more discriminants.
3696--       Currently, this flag is only set for arrays which have one or more
3697--       bounds depending on a discriminant value.
3698
3699--    Size_Known_At_Compile_Time (Flag92)
3700--       Defined in all entities for types and subtypes. Indicates that the
3701--       size of objects of the type is known at compile time. This flag is
3702--       used to optimize some generated code sequences, and also to enable
3703--       some error checks (e.g. disallowing component clauses on variable
3704--       length objects). It is set conservatively (i.e. if it is True, the
3705--       size is certainly known at compile time, if it is False, then the
3706--       size may or may not be known at compile time, but the code will
3707--       assume that it is not known).
3708
3709--    Small_Value (Ureal21)
3710--       Defined in fixed point types. Points to the universal real for the
3711--       Small of the type, either as given in a representation clause, or
3712--       as computed (as a power of two) by the compiler.
3713
3714--    Spec_Entity (Node19)
3715--       Defined in package body entities. Points to corresponding package
3716--       spec entity. Also defined in subprogram body parameters in the
3717--       case where there is a separate spec, where this field references
3718--       the corresponding parameter entities in the spec.
3719
3720--    Static_Predicate (List25)
3721--       Defined in discrete types/subtypes with predicates (Has_Predicates
3722--       set True). Set if the type/subtype has a static predicate. Points to
3723--       a list of expression and N_Range nodes that represent the predicate
3724--       in canonical form. The canonical form has entries sorted in ascending
3725--       order, with duplicates eliminated, and adjacent ranges coalesced, so
3726--       that there is always a gap in the values between successive entries.
3727--       The entries in this list are fully analyzed and typed with the base
3728--       type of the subtype. Note that all entries are static and have values
3729--       within the subtype range.
3730
3731--    Status_Flag_Or_Transient_Decl (Node15)
3732--       Defined in variables and constants. Applies to objects that require
3733--       special treatment by the finalization machinery, such as extended
3734--       return results, IF and CASE expression results, and objects inside
3735--       N_Expression_With_Actions nodes. The attribute contains the entity
3736--       of a flag which specifies particular behavior over a region of code
3737--       or the declaration of a "hook" object.
3738--       In which case is it a flag, or a hook object???
3739
3740--    Storage_Size_Variable (Node15) [implementation base type only]
3741--       Defined in access types and task type entities. This flag is set
3742--       if a valid and effective pragma Storage_Size applies to the base
3743--       type. Points to the entity for a variable that is created to
3744--       hold the value given in a Storage_Size pragma for an access
3745--       collection or a task type. Note that in the access type case,
3746--       this field is defined only in the root type (since derived types
3747--       share the same storage pool).
3748
3749--    Static_Elaboration_Desired (Flag77)
3750--       Defined in library-level packages. Set by the pragma of the same
3751--       name, to indicate that static initialization must be attempted for
3752--       all types declared in the package, and that a warning must be emitted
3753--       for those types to which static initialization is not available.
3754
3755--    Static_Initialization (Node30)
3756--       Defined in initialization procedures for types whose objects can be
3757--       initialized statically. The value of this attribute is a positional
3758--       aggregate whose components are compile-time static values. Used
3759--       when available in object declarations to eliminate the call to the
3760--       initialization procedure, and to minimize elaboration code. Note:
3761--       This attribute uses the same field as Overridden_Operation, which is
3762--       irrelevant in init_procs.
3763
3764--    Stored_Constraint (Elist23)
3765--       Defined in entities that can have discriminants (concurrent types
3766--       subtypes, record types and subtypes, private types and subtypes,
3767--       limited private types and subtypes and incomplete types). Points
3768--       to an element list containing the expressions for each of the
3769--       stored discriminants for the record (sub)type.
3770
3771--    Strict_Alignment (Flag145) [implementation base type only]
3772--       Defined in all type entities. Indicates that some containing part
3773--       is either aliased or tagged. This prohibits packing the object
3774--       tighter than its natural size and alignment.
3775
3776--    String_Literal_Length (Uint16)
3777--       Defined in string literal subtypes (which are created to correspond
3778--       to string literals in the program). Contains the length of the string
3779--       literal.
3780
3781--    String_Literal_Low_Bound (Node15)
3782--       Defined in string literal subtypes (which are created to correspond
3783--       to string literals in the program). Contains an expression whose
3784--       value represents the low bound of the literal. This is a copy of
3785--       the low bound of the applicable index constraint if there is one,
3786--       or a copy of the low bound of the index base type if not.
3787
3788--    Subprograms_For_Type (Node29)
3789--       Defined in all type entities, and in subprogram entities. This is used
3790--       to hold a list of subprogram entities for subprograms associated with
3791--       the type, linked through the Subprogram_List field of the subprogram
3792--       entity. Basically this is a way of multiplexing the single field to
3793--       hold more than one entity (since we ran out of space in some type
3794--       entities). This is currently used for Invariant_Procedure and also
3795--       for Predicate_Function, and clients will always use the latter two
3796--       names to access entries in this list.
3797
3798--    Suppress_Elaboration_Warnings (Flag148)
3799--       Defined in all entities, can be set only for subprogram entities and
3800--       for variables. If this flag is set then Sem_Elab will not generate
3801--       elaboration warnings for the subprogram or variable. Suppression of
3802--       such warnings is automatic for subprograms for which elaboration
3803--       checks are suppressed (without the need to set this flag), but the
3804--       flag is also set for various internal entities (such as init procs)
3805--       which are known not to generate any possible access before
3806--       elaboration, and it is set on variables when a warning is given to
3807--       avoid multiple elaboration warnings for the same variable.
3808
3809--    Suppress_Initialization (Flag105)
3810--       Defined in all type and subtype entities. If set for the base type,
3811--       then the generation of initialization procedures is suppressed for the
3812--       type. Any other implicit initialiation (e.g. from the use of pragma
3813--       Initialize_Scalars) is also suppressed if this flag is set either for
3814--       the subtype in question, or for the base type. Set by use of pragma
3815--       Suppress_Initialization and also for internal entities where we know
3816--       that no initialization is required. For example, enumeration image
3817--       table entities set it.
3818
3819--    Suppress_Style_Checks (Flag165)
3820--       Defined in all entities. Suppresses any style checks specifically
3821--       associated with the given entity if set.
3822
3823--    Suppress_Value_Tracking_On_Call (Flag217)
3824--       Defined in all entities. Set in a scope entity if value tracking is to
3825--       be suppressed on any call within the scope. Used when an access to a
3826--       local subprogram is computed, to deal with the possibility that this
3827--       value may be passed around, and if used, may clobber a local variable.
3828
3829--    Task_Body_Procedure (Node25)
3830--       Defined in task types and subtypes. Points to the entity for the task
3831--       task body procedure (as further described in Exp_Ch9, task bodies are
3832--       expanded into procedures). A convenient function to retrieve this
3833--       field is Sem_Util.Get_Task_Body_Procedure.
3834--
3835--       The last sentence is odd??? Why not have Task_Body_Procedure go to the
3836--       Underlying_Type of the Root_Type???
3837
3838--    Treat_As_Volatile (Flag41)
3839--       Defined in all type entities, and also in constants, components and
3840--       variables. Set if this entity is to be treated as volatile for code
3841--       generation purposes. Always set if Is_Volatile is set, but can also
3842--       be set as a result of situations (such as address overlays) where
3843--       the front end wishes to force volatile handling to inhibit aliasing
3844--       optimization which might be legally ok, but is undesirable. Note
3845--       that the back end always tests this flag rather than Is_Volatile.
3846--       The front end tests Is_Volatile if it is concerned with legality
3847--       checks associated with declared volatile variables, but if the test
3848--       is for the purposes of suppressing optimizations, then the front
3849--       end should test Treat_As_Volatile rather than Is_Volatile.
3850--
3851--       Note: before testing Treat_As_Volatile, consider whether it would
3852--       be more appropriate to use Exp_Util.Is_Volatile_Reference instead,
3853--       which catches more cases of volatile references.
3854
3855--    Type_High_Bound (synthesized)
3856--       Applies to scalar types. Returns the tree node (Node_Id) that contains
3857--       the high bound of a scalar type. The returned value is literal for a
3858--       base type, but may be an expression in the case of scalar type with
3859--       dynamic bounds. Note that in the case of a fixed point type, the high
3860--       bound is in units of small, and is an integer.
3861
3862--    Type_Low_Bound (synthesized)
3863--       Applies to scalar types. Returns the tree node (Node_Id) that contains
3864--       the low bound of a scalar type. The returned value is literal for a
3865--       base type, but may be an expression in the case of scalar type with
3866--       dynamic bounds. Note that in the case of a fixed point type, the low
3867--       bound is in units of small, and is an integer.
3868
3869--    Underlying_Full_View (Node19)
3870--       Defined in private subtypes that are the completion of other private
3871--       types, or in private types that are derived from private subtypes. If
3872--       the full view of a private type T is derived from another private type
3873--       with discriminants Td, the full view of T is also private, and there
3874--       is no way to attach to it a further full view that would convey the
3875--       structure of T to the back end. The Underlying_Full_ View is an
3876--       attribute of the full view that is a subtype of Td with the same
3877--       constraint as the declaration for T. The declaration for this subtype
3878--       is built at the point of the declaration of T, either as completion,
3879--       or as a subtype declaration where the base type is private and has a
3880--       private completion. If Td is already constrained, then its full view
3881--       can serve directly as the full view of T.
3882
3883--    Underlying_Record_View (Node28)
3884--       Defined in record types. Set for record types that are extensions of
3885--       types with unknown discriminants, and also set for internally built
3886--       underlying record views to reference its original record type. Record
3887--       types that are extensions of types with unknown discriminants do not
3888--       have a completion, but they cannot be used without having some
3889--       discriminated view at hand. This view is a record type with the same
3890--       structure, whose parent type is the full view of the parent in the
3891--       original type extension.
3892
3893--    Underlying_Type (synthesized)
3894--       Applies to all entities. This is the identity function except in the
3895--       case where it is applied to an incomplete or private type, in which
3896--       case it is the underlying type of the type declared by the completion,
3897--       or Empty if the completion has not yet been encountered and analyzed.
3898--
3899--       Note: the reason this attribute applies to all entities, and not just
3900--       types, is to legitimize code where Underlying_Type is applied to an
3901--       entity which may or may not be a type, with the intent that if it is a
3902--       type, its underlying type is taken.
3903
3904--    Universal_Aliasing (Flag216) [implementation base type only]
3905--       Defined in all type entities. Set to direct the back-end to avoid
3906--       any optimizations based on type-based alias analysis for this type.
3907--       Indicates that objects of this type can alias objects of any other
3908--       types, which guarantees that any objects can be referenced through
3909--       access types designating this type safely, whatever the actual type
3910--       of these objects. In other words, the effect is as though access
3911--       types designating this type were subject to No_Strict_Aliasing.
3912
3913--    Unset_Reference (Node16)
3914--       Defined in variables and out parameters. This is normally Empty. It
3915--       is set to point to an identifier that represents a reference to the
3916--       entity before any value has been set. Only the first such reference
3917--       is identified. This field is used to generate a warning message if
3918--       necessary (see Sem_Warn.Check_Unset_Reference).
3919
3920--    Used_As_Generic_Actual (Flag222)
3921--       Defined in all entities, set if the entity is used as an argument to
3922--       a generic instantiation. Used to tune certain warning messages.
3923
3924--    Uses_Lock_Free (Flag188)
3925--       Defined in protected type entities. Set to True when the Lock Free
3926--       implementation is used for the protected type. This implemenatation is
3927--       based on atomic transactions and doesn't require anymore the use of
3928--       Protection object (see System.Tasking.Protected_Objects).
3929
3930--    Uses_Sec_Stack (Flag95)
3931--       Defined in scope entities (blocks,functions, procedures, tasks,
3932--       entries). Set to True when secondary stack is used in this scope and
3933--       must be released on exit unless Sec_Stack_Needed_For_Return is set.
3934
3935--    Warnings_Off (Flag96)
3936--       Defined in all entities. Set if a pragma Warnings (Off, entity-name)
3937--       is used to suppress warnings for a given entity. It is also used by
3938--       the compiler in some situations to kill spurious warnings. Note that
3939--       clients should generally not test this flag directly, but instead
3940--       use function Has_Warnings_Off.
3941
3942--    Warnings_Off_Used (Flag236)
3943--       Defined in all entities. Can only be set if Warnings_Off is set. If
3944--       set indicates that a warning was suppressed by the Warnings_Off flag,
3945--       and Unmodified/Unreferenced would not have suppressed the warning.
3946
3947--    Warnings_Off_Used_Unmodified (Flag237)
3948--       Defined in all entities. Can only be set if Warnings_Off is set and
3949--       Has_Pragma_Unmodified is not set. If set indicates that a warning was
3950--       suppressed by the Warnings_Off status but that pragma Unmodified
3951--       would also have suppressed the warning.
3952
3953--    Warnings_Off_Used_Unreferenced (Flag238)
3954--       Defined in all entities. Can only be set if Warnings_Off is set and
3955--       Has_Pragma_Unreferenced is not set. If set indicates that a warning
3956--       was suppressed by the Warnings_Off status but that pragma Unreferenced
3957--       would also have suppressed the warning.
3958
3959--    Was_Hidden (Flag196)
3960--       Defined in all entities. Used to save the value of the Is_Hidden
3961--       attribute when the limited-view is installed (Ada 2005: AI-217).
3962
3963--    Wrapped_Entity (Node27)
3964--       Defined in functions and procedures which have been classified as
3965--       Is_Primitive_Wrapper. Set to the entity being wrapper.
3966
3967--------------------------------------
3968-- Delayed Freezing and Elaboration --
3969--------------------------------------
3970
3971--  The flag Has_Delayed_Freeze indicates that an entity carries an explicit
3972--  freeze node, which appears later in the expanded tree.
3973
3974--  a)   The flag is used by the front-end to trigger expansion actions
3975--  which include the generation of that freeze node. Typically this happens at
3976--  the end of the current compilation unit, or before the first subprogram
3977--  body is encountered in the current unit. See files freeze and exp_ch13 for
3978--  details on the actions triggered by a freeze node, which include the
3979--  construction of initialization procedures and dispatch tables.
3980
3981--  b) The flag is used by the backend to defer elaboration of the entity until
3982--  its freeze node is seen.  In the absence of an explicit freeze node, an
3983--  entity is frozen (and elaborated) at the point of declaration.
3984
3985--  For object declarations, the flag is set when an address clause for the
3986--  object is encountered. Legality checks on the address expression only
3987--  take place at the freeze point of the object.
3988
3989--  Most types have an explicit freeze node, because they cannot be elaborated
3990--  until all representation and operational items that apply to them have been
3991--  analyzed. Private types and incomplete types have the flag set as well, as
3992--  do task and protected types.
3993
3994--  Implicit base types created for type derivations, as well as classwide
3995--  types created for all tagged types, have the flag set.
3996
3997--  If a subprogram has an access parameter whose designated type is incomplete
3998--  the subprogram has the flag set.
3999
4000   ------------------
4001   -- Access Kinds --
4002   ------------------
4003
4004   --  The following entity kinds are introduced by the corresponding type
4005   --  definitions:
4006
4007   --    E_Access_Type,
4008   --    E_General_Access_Type,
4009   --    E_Access_Subprogram_Type,
4010   --    E_Anonymous_Access_Subprogram_Type,
4011   --    E_Access_Protected_Subprogram_Type,
4012   --    E_Anonymous_Access_Protected_Subprogram_Type
4013   --    E_Anonymous_Access_Type.
4014
4015   --  E_Access_Subtype is for an access subtype created by a subtype
4016   --  declaration.
4017
4018   --  In addition, we define the kind E_Allocator_Type to label allocators.
4019   --  This is because special resolution rules apply to this construct.
4020   --  Eventually the constructs are labeled with the access type imposed by
4021   --  the context. Gigi should never see the type E_Allocator.
4022
4023   --  Similarly, the type E_Access_Attribute_Type is used as the initial kind
4024   --  associated with an access attribute. After resolution a specific access
4025   --  type will be established as determined by the context.
4026
4027   --  Finally, the type Any_Access is used to label -null- during type
4028   --  resolution. Any_Access is also replaced by the context type after
4029   --  resolution.
4030
4031   --------------------------------
4032   -- Classification of Entities --
4033   --------------------------------
4034
4035   --  The classification of program entities which follows is a refinement of
4036   --  the list given in RM 3.1(1). E.g., separate entities denote subtypes of
4037   --  different type classes. Ada 95 entities include class wide types,
4038   --  protected types, subprogram types, generalized access types,  generic
4039   --  formal derived types and generic formal packages.
4040
4041   --  The order chosen for these kinds allows us to classify related entities
4042   --  so that they are contiguous. As a result, they do not appear in the
4043   --  exact same order as their order of first appearance in the LRM (For
4044   --  example, private types are listed before packages). The contiguity
4045   --  allows us to define useful subtypes (see below) such as type entities,
4046   --  overloaded entities, etc.
4047
4048   --  Each entity (explicitly or implicitly declared) has a kind, which is
4049   --  a value of the following type:
4050
4051   type Entity_Kind is (
4052
4053      E_Void,
4054      --  The initial Ekind value for a newly created entity. Also used as the
4055      --  Ekind for Standard_Void_Type, a type entity in Standard used as a
4056      --  dummy type for the return type of a procedure (the reason we create
4057      --  this type is to share the circuits for performing overload resolution
4058      --  on calls).
4059
4060      -------------
4061      -- Objects --
4062      -------------
4063
4064      E_Component,
4065      --  Components of a record declaration, private declarations of
4066      --  protected objects.
4067
4068      E_Constant,
4069      --  Constants created by an object declaration with a constant keyword
4070
4071      E_Discriminant,
4072      --  A discriminant, created by the use of a discriminant in a type
4073      --  declaration.
4074
4075      E_Loop_Parameter,
4076      --  A loop parameter created by a for loop
4077
4078      E_Variable,
4079      --  Variables created by an object declaration with no constant keyword
4080
4081      ------------------------
4082      -- Parameter Entities --
4083      ------------------------
4084
4085      --  Parameters are also objects
4086
4087      E_Out_Parameter,
4088      --  An out parameter of a subprogram or entry
4089
4090      E_In_Out_Parameter,
4091      --  An in-out parameter of a subprogram or entry
4092
4093      E_In_Parameter,
4094      --  An in parameter of a subprogram or entry
4095
4096      --------------------------------
4097      -- Generic Parameter Entities --
4098      --------------------------------
4099
4100      --  Generic parameters are also objects
4101
4102      E_Generic_In_Out_Parameter,
4103      --  A generic in out parameter, created by the use of a generic in out
4104      --  parameter in a generic declaration.
4105
4106      E_Generic_In_Parameter,
4107      --  A generic in parameter, created by the use of a generic in
4108      --  parameter in a generic declaration.
4109
4110      -------------------
4111      -- Named Numbers --
4112      -------------------
4113
4114      E_Named_Integer,
4115      --  Named numbers created by a number declaration with an integer value
4116
4117      E_Named_Real,
4118      --  Named numbers created by a number declaration with a real value
4119
4120      -----------------------
4121      -- Enumeration Types --
4122      -----------------------
4123
4124      E_Enumeration_Type,
4125      --  Enumeration types, created by an enumeration type declaration
4126
4127      E_Enumeration_Subtype,
4128      --  Enumeration subtypes, created by an explicit or implicit subtype
4129      --  declaration applied to an enumeration type or subtype.
4130
4131      -------------------
4132      -- Numeric Types --
4133      -------------------
4134
4135      E_Signed_Integer_Type,
4136      --  Signed integer type, used for the anonymous base type of the
4137      --  integer subtype created by an integer type declaration.
4138
4139      E_Signed_Integer_Subtype,
4140      --  Signed integer subtype, created by either an integer subtype or
4141      --  integer type declaration (in the latter case an integer type is
4142      --  created for the base type, and this is the first named subtype).
4143
4144      E_Modular_Integer_Type,
4145      --  Modular integer type, used for the anonymous base type of the
4146      --  integer subtype created by a modular integer type declaration.
4147
4148      E_Modular_Integer_Subtype,
4149      --  Modular integer subtype, created by either an modular subtype
4150      --  or modular type declaration (in the latter case a modular type
4151      --  is created for the base type, and this is the first named subtype).
4152
4153      E_Ordinary_Fixed_Point_Type,
4154      --  Ordinary fixed type, used for the anonymous base type of the
4155      --  fixed subtype created by an ordinary fixed point type declaration.
4156
4157      E_Ordinary_Fixed_Point_Subtype,
4158      --  Ordinary fixed point subtype, created by either an ordinary fixed
4159      --  point subtype or ordinary fixed point type declaration (in the
4160      --  latter case a fixed point type is created for the base type, and
4161      --  this is the first named subtype).
4162
4163      E_Decimal_Fixed_Point_Type,
4164      --  Decimal fixed type, used for the anonymous base type of the decimal
4165      --  fixed subtype created by an ordinary fixed point type declaration.
4166
4167      E_Decimal_Fixed_Point_Subtype,
4168      --  Decimal fixed point subtype, created by either a decimal fixed point
4169      --  subtype or decimal fixed point type declaration (in the latter case
4170      --  a fixed point type is created for the base type, and this is the
4171      --  first named subtype).
4172
4173      E_Floating_Point_Type,
4174      --  Floating point type, used for the anonymous base type of the
4175      --  floating point subtype created by a floating point type declaration.
4176
4177      E_Floating_Point_Subtype,
4178      --  Floating point subtype, created by either a floating point subtype
4179      --  or floating point type declaration (in the latter case a floating
4180      --  point type is created for the base type, and this is the first
4181      --  named subtype).
4182
4183      ------------------
4184      -- Access Types --
4185      ------------------
4186
4187      E_Access_Type,
4188      --  An access type created by an access type declaration with no all
4189      --  keyword present. Note that the predefined type Any_Access, which
4190      --  has E_Access_Type Ekind, is used to label NULL in the upwards pass
4191      --  of type analysis, to be replaced by the true access type in the
4192      --  downwards resolution pass.
4193
4194      E_Access_Subtype,
4195      --  An access subtype created by a subtype declaration for any access
4196      --  type (whether or not it is a general access type).
4197
4198      E_Access_Attribute_Type,
4199      --  An access type created for an access attribute (such as 'Access,
4200      --  'Unrestricted_Access and Unchecked_Access)
4201
4202      E_Allocator_Type,
4203      --  A special internal type used to label allocators and attribute
4204      --  references using 'Access. This is needed because special resolution
4205      --  rules apply to these constructs. On the resolution pass, this type
4206      --  is always replaced by the actual access type, so Gigi should never
4207      --  see types with this Ekind.
4208
4209      E_General_Access_Type,
4210      --  An access type created by an access type declaration with the all
4211      --  keyword present.
4212
4213      E_Access_Subprogram_Type,
4214      --  An access to subprogram type, created by an access to subprogram
4215      --  declaration.
4216
4217      E_Anonymous_Access_Subprogram_Type,
4218      --  An anonymous access to subprogram type, created by an access to
4219      --  subprogram declaration, or generated for a current instance of
4220      --  a type name appearing within a component definition that has an
4221      --  anonymous access to subprogram type.
4222
4223      E_Access_Protected_Subprogram_Type,
4224      --  An access to a protected subprogram, created by the corresponding
4225      --  declaration. Values of such a type denote both a protected object
4226      --  and a protected operation within, and have different compile-time
4227      --  and run-time properties than other access to subprograms.
4228
4229      E_Anonymous_Access_Protected_Subprogram_Type,
4230      --  An anonymous access to protected subprogram type, created by an
4231      --  access to subprogram declaration.
4232
4233      E_Anonymous_Access_Type,
4234      --  An anonymous access type created by an access parameter or access
4235      --  discriminant.
4236
4237      ---------------------
4238      -- Composite Types --
4239      ---------------------
4240
4241      E_Array_Type,
4242      --  An array type created by an array type declaration. Includes all
4243      --  cases of arrays, except for string types.
4244
4245      E_Array_Subtype,
4246      --  An array subtype, created by an explicit array subtype declaration,
4247      --  or the use of an anonymous array subtype.
4248
4249      E_String_Type,
4250      --  A string type, i.e. an array type whose component type is a character
4251      --  type, and for which string literals can thus be written.
4252
4253      E_String_Subtype,
4254      --  A string subtype, created by an explicit subtype declaration for a
4255      --  string type, or the use of an anonymous subtype of a string type,
4256
4257      E_String_Literal_Subtype,
4258      --  A special string subtype, used only to describe the type of a string
4259      --  literal (will always be one dimensional, with literal bounds).
4260
4261      E_Class_Wide_Type,
4262      --  A class wide type, created by any tagged type declaration (i.e. if
4263      --  a tagged type is declared, the corresponding class type is always
4264      --  created, using this Ekind value).
4265
4266      E_Class_Wide_Subtype,
4267      --  A subtype of a class wide type, created by a subtype declaration
4268      --  used to declare a subtype of a class type.
4269
4270      E_Record_Type,
4271      --  A record type, created by a record type declaration
4272
4273      E_Record_Subtype,
4274      --  A record subtype, created by a record subtype declaration
4275
4276      E_Record_Type_With_Private,
4277      --  Used for types defined by a private extension declaration, and
4278      --  for tagged private types. Includes the fields for both private
4279      --  types and for record types (with the sole exception of
4280      --  Corresponding_Concurrent_Type which is obviously not needed).
4281      --  This entity is considered to be both a record type and
4282      --  a private type.
4283
4284      E_Record_Subtype_With_Private,
4285      --  A subtype of a type defined by a private extension declaration
4286
4287      E_Private_Type,
4288      --  A private type, created by a private type declaration
4289      --  that has neither the keyword limited nor the keyword tagged.
4290
4291      E_Private_Subtype,
4292      --  A subtype of a private type, created by a subtype declaration used
4293      --  to declare a subtype of a private type.
4294
4295      E_Limited_Private_Type,
4296      --  A limited private type, created by a private type declaration that
4297      --  has the keyword limited, but not the keyword tagged.
4298
4299      E_Limited_Private_Subtype,
4300      --  A subtype of a limited private type, created by a subtype declaration
4301      --  used to declare a subtype of a limited private type.
4302
4303      E_Incomplete_Type,
4304      --  An incomplete type, created by an incomplete type declaration
4305
4306      E_Incomplete_Subtype,
4307      --  An incomplete subtype, created by a subtype declaration where the
4308      --  subtype mark denotes an incomplete type.
4309
4310      E_Task_Type,
4311      --  A task type, created by a task type declaration. An entity with this
4312      --  Ekind is also created to describe the anonymous type of a task that
4313      --  is created by a single task declaration.
4314
4315      E_Task_Subtype,
4316      --  A subtype of a task type, created by a subtype declaration used to
4317      --  declare a subtype of a task type.
4318
4319      E_Protected_Type,
4320      --  A protected type, created by a protected type declaration. An entity
4321      --  with this Ekind is also created to describe the anonymous type of
4322      --  a protected object created by a single protected declaration.
4323
4324      E_Protected_Subtype,
4325      --  A subtype of a protected type, created by a subtype declaration used
4326      --  to declare a subtype of a protected type.
4327
4328      -----------------
4329      -- Other Types --
4330      -----------------
4331
4332      E_Exception_Type,
4333      --  The type of an exception created by an exception declaration
4334
4335      E_Subprogram_Type,
4336      --  This is the designated type of an Access_To_Subprogram. Has type
4337      --  and signature like a subprogram entity, so can appear in calls,
4338      --  which are resolved like regular calls, except that such an entity
4339      --  is not overloadable.
4340
4341      ---------------------------
4342      -- Overloadable Entities --
4343      ---------------------------
4344
4345      E_Enumeration_Literal,
4346      --  An enumeration literal, created by the use of the literal in an
4347      --  enumeration type definition.
4348
4349      E_Function,
4350      --  A function, created by a function declaration or a function body
4351      --  that acts as its own declaration.
4352
4353      E_Operator,
4354      --  A predefined operator, appearing in Standard, or an implicitly
4355      --  defined concatenation operator created whenever an array is
4356      --  declared. We do not make normal derived operators explicit in
4357      --  the tree, but the concatenation operators are made explicit.
4358
4359      E_Procedure,
4360      --  A procedure, created by a procedure declaration or a procedure
4361      --  body that acts as its own declaration.
4362
4363      E_Entry,
4364      --  An entry, created by an entry declaration in a task or protected
4365      --  object.
4366
4367      --------------------
4368      -- Other Entities --
4369      --------------------
4370
4371      E_Entry_Family,
4372      --  An entry family, created by an entry family declaration in a
4373      --  task or protected type definition.
4374
4375      E_Block,
4376      --  A block identifier, created by an explicit or implicit label on
4377      --  a block or declare statement.
4378
4379      E_Entry_Index_Parameter,
4380      --  An entry index parameter created by an entry index specification
4381      --  for the body of a protected entry family.
4382
4383      E_Exception,
4384      --  An exception created by an exception declaration. The exception
4385      --  itself uses E_Exception for the Ekind, the implicit type that is
4386      --  created to represent its type uses the Ekind E_Exception_Type.
4387
4388      E_Generic_Function,
4389      --  A generic function. This is the entity for a generic function
4390      --  created by a generic subprogram declaration.
4391
4392      E_Generic_Procedure,
4393      --  A generic function. This is the entity for a generic procedure
4394      --  created by a generic subprogram declaration.
4395
4396      E_Generic_Package,
4397      --  A generic package, this is the entity for a generic package created
4398      --  by a generic package declaration.
4399
4400      E_Label,
4401      --  The defining entity for a label. Note that this is created by the
4402      --  implicit label declaration, not the occurrence of the label itself,
4403      --  which is simply a direct name referring to the label.
4404
4405      E_Loop,
4406      --  A loop identifier, created by an explicit or implicit label on a
4407      --  loop statement.
4408
4409      E_Return_Statement,
4410      --  A dummy entity created for each return statement. Used to hold
4411      --  information about the return statement (what it applies to) and in
4412      --  rules checking. For example, a simple_return_statement that applies
4413      --  to an extended_return_statement cannot have an expression; this
4414      --  requires putting the E_Return_Statement entity for the
4415      --  extended_return_statement on the scope stack.
4416
4417      E_Package,
4418      --  A package, created by a package declaration
4419
4420      E_Package_Body,
4421      --  A package body. This entity serves only limited functions, since
4422      --  most semantic analysis uses the package entity (E_Package). However
4423      --  there are some attributes that are significant for the body entity.
4424      --  For example, collection of exception handlers.
4425
4426      E_Protected_Object,
4427      --  A protected object, created by an object declaration that declares
4428      --  an object of a protected type.
4429
4430      E_Protected_Body,
4431      --  A protected body. This entity serves almost no function, since all
4432      --  semantic analysis uses the protected entity (E_Protected_Type)
4433
4434      E_Task_Body,
4435      --  A task body. This entity serves almost no function, since all
4436      --  semantic analysis uses the protected entity (E_Task_Type).
4437
4438      E_Subprogram_Body,
4439      --  A subprogram body. Used when a subprogram has a separate declaration
4440      --  to represent the entity for the body. This entity serves almost no
4441      --  function, since all semantic analysis uses the subprogram entity
4442      --  for the declaration (E_Function or E_Procedure).
4443
4444      E_Abstract_State
4445      --  A state abstraction. Used to designate entities introduced by aspect
4446      --  or pragma Abstract_State. The entity carries the various properties
4447      --  of the state.
4448   );
4449
4450   for Entity_Kind'Size use 8;
4451   --  The data structures in Atree assume this!
4452
4453   --------------------------
4454   -- Subtype Declarations --
4455   --------------------------
4456
4457   --  The above entities are arranged so that they can be conveniently grouped
4458   --  into subtype ranges. Note that for each of the xxx_Kind ranges defined
4459   --  below, there is a corresponding Is_xxx (or for types, Is_xxx_Type)
4460   --  predicate which is to be used in preference to direct range tests using
4461   --  the subtype name. However, the subtype names are available for direct
4462   --  use, e.g. as choices in case statements.
4463
4464   subtype Access_Kind                 is Entity_Kind range
4465       E_Access_Type ..
4466   --  E_Access_Subtype
4467   --  E_Access_Attribute_Type
4468   --  E_Allocator_Type
4469   --  E_General_Access_Type
4470   --  E_Access_Subprogram_Type
4471   --  E_Anonymous_Access_Subprogram_Type
4472   --  E_Access_Protected_Subprogram_Type
4473   --  E_Anonymous_Access_Protected_Subprogram_Type
4474       E_Anonymous_Access_Type;
4475
4476   subtype Access_Subprogram_Kind      is Entity_Kind range
4477       E_Access_Subprogram_Type ..
4478   --  E_Anonymous_Access_Subprogram_Type
4479   --  E_Access_Protected_Subprogram_Type
4480       E_Anonymous_Access_Protected_Subprogram_Type;
4481
4482   subtype Access_Protected_Kind       is Entity_Kind range
4483      E_Access_Protected_Subprogram_Type ..
4484      E_Anonymous_Access_Protected_Subprogram_Type;
4485
4486   subtype Aggregate_Kind              is Entity_Kind range
4487       E_Array_Type ..
4488   --  E_Array_Subtype
4489   --  E_String_Type
4490   --  E_String_Subtype
4491   --  E_String_Literal_Subtype
4492   --  E_Class_Wide_Type
4493   --  E_Class_Wide_Subtype
4494   --  E_Record_Type
4495       E_Record_Subtype;
4496
4497   subtype Array_Kind                  is Entity_Kind range
4498       E_Array_Type ..
4499   --  E_Array_Subtype
4500   --  E_String_Type
4501   --  E_String_Subtype
4502       E_String_Literal_Subtype;
4503
4504   subtype Assignable_Kind             is Entity_Kind range
4505       E_Variable ..
4506   --  E_Out_Parameter
4507       E_In_Out_Parameter;
4508
4509   subtype Class_Wide_Kind             is Entity_Kind range
4510       E_Class_Wide_Type ..
4511       E_Class_Wide_Subtype;
4512
4513   subtype Composite_Kind              is Entity_Kind range
4514       E_Array_Type ..
4515   --  E_Array_Subtype
4516   --  E_String_Type
4517   --  E_String_Subtype
4518   --  E_String_Literal_Subtype
4519   --  E_Class_Wide_Type
4520   --  E_Class_Wide_Subtype
4521   --  E_Record_Type
4522   --  E_Record_Subtype
4523   --  E_Record_Type_With_Private
4524   --  E_Record_Subtype_With_Private
4525   --  E_Private_Type
4526   --  E_Private_Subtype
4527   --  E_Limited_Private_Type
4528   --  E_Limited_Private_Subtype
4529   --  E_Incomplete_Type
4530   --  E_Incomplete_Subtype
4531   --  E_Task_Type
4532   --  E_Task_Subtype,
4533   --  E_Protected_Type,
4534       E_Protected_Subtype;
4535
4536   subtype Concurrent_Kind             is Entity_Kind range
4537       E_Task_Type ..
4538   --  E_Task_Subtype,
4539   --  E_Protected_Type,
4540       E_Protected_Subtype;
4541
4542   subtype Concurrent_Body_Kind        is Entity_Kind range
4543       E_Protected_Body ..
4544       E_Task_Body;
4545
4546   subtype Decimal_Fixed_Point_Kind    is Entity_Kind range
4547       E_Decimal_Fixed_Point_Type ..
4548       E_Decimal_Fixed_Point_Subtype;
4549
4550   subtype Digits_Kind                 is Entity_Kind range
4551       E_Decimal_Fixed_Point_Type ..
4552   --  E_Decimal_Fixed_Point_Subtype
4553   --  E_Floating_Point_Type
4554       E_Floating_Point_Subtype;
4555
4556   subtype Discrete_Kind               is Entity_Kind range
4557       E_Enumeration_Type ..
4558   --  E_Enumeration_Subtype
4559   --  E_Signed_Integer_Type
4560   --  E_Signed_Integer_Subtype
4561   --  E_Modular_Integer_Type
4562       E_Modular_Integer_Subtype;
4563
4564   subtype Discrete_Or_Fixed_Point_Kind is Entity_Kind range
4565       E_Enumeration_Type ..
4566   --  E_Enumeration_Subtype
4567   --  E_Signed_Integer_Type
4568   --  E_Signed_Integer_Subtype
4569   --  E_Modular_Integer_Type
4570   --  E_Modular_Integer_Subtype
4571   --  E_Ordinary_Fixed_Point_Type
4572   --  E_Ordinary_Fixed_Point_Subtype
4573   --  E_Decimal_Fixed_Point_Type
4574       E_Decimal_Fixed_Point_Subtype;
4575
4576   subtype Elementary_Kind             is Entity_Kind range
4577       E_Enumeration_Type ..
4578   --  E_Enumeration_Subtype
4579   --  E_Signed_Integer_Type
4580   --  E_Signed_Integer_Subtype
4581   --  E_Modular_Integer_Type
4582   --  E_Modular_Integer_Subtype
4583   --  E_Ordinary_Fixed_Point_Type
4584   --  E_Ordinary_Fixed_Point_Subtype
4585   --  E_Decimal_Fixed_Point_Type
4586   --  E_Decimal_Fixed_Point_Subtype
4587   --  E_Floating_Point_Type
4588   --  E_Floating_Point_Subtype
4589   --  E_Access_Type
4590   --  E_Access_Subtype
4591   --  E_Access_Attribute_Type
4592   --  E_Allocator_Type
4593   --  E_General_Access_Type
4594   --  E_Access_Subprogram_Type
4595   --  E_Access_Protected_Subprogram_Type
4596   --  E_Anonymous_Access_Subprogram_Type
4597   --  E_Anonymous_Access_Protected_Subprogram_Type
4598       E_Anonymous_Access_Type;
4599
4600   subtype Enumeration_Kind            is Entity_Kind range
4601       E_Enumeration_Type ..
4602       E_Enumeration_Subtype;
4603
4604   subtype Entry_Kind                  is Entity_Kind range
4605       E_Entry ..
4606       E_Entry_Family;
4607
4608   subtype Fixed_Point_Kind            is Entity_Kind range
4609       E_Ordinary_Fixed_Point_Type ..
4610   --  E_Ordinary_Fixed_Point_Subtype
4611   --  E_Decimal_Fixed_Point_Type
4612       E_Decimal_Fixed_Point_Subtype;
4613
4614   subtype Float_Kind                  is Entity_Kind range
4615       E_Floating_Point_Type ..
4616       E_Floating_Point_Subtype;
4617
4618   subtype Formal_Kind                 is Entity_Kind range
4619       E_Out_Parameter ..
4620   --  E_In_Out_Parameter
4621       E_In_Parameter;
4622
4623   subtype Formal_Object_Kind          is Entity_Kind range
4624       E_Generic_In_Out_Parameter ..
4625       E_Generic_In_Parameter;
4626
4627   subtype Generic_Subprogram_Kind     is Entity_Kind range
4628       E_Generic_Function ..
4629       E_Generic_Procedure;
4630
4631   subtype Generic_Unit_Kind           is Entity_Kind range
4632       E_Generic_Function ..
4633   --  E_Generic_Procedure
4634       E_Generic_Package;
4635
4636   subtype Incomplete_Kind             is Entity_Kind range
4637       E_Incomplete_Type ..
4638       E_Incomplete_Subtype;
4639
4640   subtype Incomplete_Or_Private_Kind  is Entity_Kind range
4641       E_Record_Type_With_Private ..
4642   --  E_Record_Subtype_With_Private
4643   --  E_Private_Type
4644   --  E_Private_Subtype
4645   --  E_Limited_Private_Type
4646   --  E_Limited_Private_Subtype
4647   --  E_Incomplete_Type
4648       E_Incomplete_Subtype;
4649
4650   subtype Integer_Kind                is Entity_Kind range
4651       E_Signed_Integer_Type ..
4652   --  E_Signed_Integer_Subtype
4653   --  E_Modular_Integer_Type
4654       E_Modular_Integer_Subtype;
4655
4656   subtype Modular_Integer_Kind        is Entity_Kind range
4657       E_Modular_Integer_Type ..
4658       E_Modular_Integer_Subtype;
4659
4660   subtype Named_Kind                  is Entity_Kind range
4661       E_Named_Integer ..
4662       E_Named_Real;
4663
4664   subtype Numeric_Kind                is Entity_Kind range
4665       E_Signed_Integer_Type ..
4666   --  E_Signed_Integer_Subtype
4667   --  E_Modular_Integer_Type
4668   --  E_Modular_Integer_Subtype
4669   --  E_Ordinary_Fixed_Point_Type
4670   --  E_Ordinary_Fixed_Point_Subtype
4671   --  E_Decimal_Fixed_Point_Type
4672   --  E_Decimal_Fixed_Point_Subtype
4673   --  E_Floating_Point_Type
4674       E_Floating_Point_Subtype;
4675
4676   subtype Object_Kind                 is Entity_Kind range
4677       E_Component ..
4678   --  E_Constant
4679   --  E_Discriminant
4680   --  E_Loop_Parameter
4681   --  E_Variable
4682   --  E_Out_Parameter
4683   --  E_In_Out_Parameter
4684   --  E_In_Parameter
4685   --  E_Generic_In_Out_Parameter
4686       E_Generic_In_Parameter;
4687
4688   subtype Ordinary_Fixed_Point_Kind   is Entity_Kind range
4689       E_Ordinary_Fixed_Point_Type ..
4690       E_Ordinary_Fixed_Point_Subtype;
4691
4692   subtype Overloadable_Kind           is Entity_Kind range
4693       E_Enumeration_Literal ..
4694   --  E_Function
4695   --  E_Operator
4696   --  E_Procedure
4697       E_Entry;
4698
4699   subtype Private_Kind                is Entity_Kind range
4700       E_Record_Type_With_Private ..
4701   --  E_Record_Subtype_With_Private
4702   --  E_Private_Type
4703   --  E_Private_Subtype
4704   --  E_Limited_Private_Type
4705       E_Limited_Private_Subtype;
4706
4707   subtype Protected_Kind              is Entity_Kind range
4708       E_Protected_Type ..
4709       E_Protected_Subtype;
4710
4711   subtype Real_Kind                   is Entity_Kind range
4712       E_Ordinary_Fixed_Point_Type ..
4713   --  E_Ordinary_Fixed_Point_Subtype
4714   --  E_Decimal_Fixed_Point_Type
4715   --  E_Decimal_Fixed_Point_Subtype
4716   --  E_Floating_Point_Type
4717       E_Floating_Point_Subtype;
4718
4719   subtype Record_Kind                 is Entity_Kind range
4720       E_Class_Wide_Type ..
4721   --  E_Class_Wide_Subtype
4722   --  E_Record_Type
4723   --  E_Record_Subtype
4724   --  E_Record_Type_With_Private
4725       E_Record_Subtype_With_Private;
4726
4727   subtype Scalar_Kind                 is Entity_Kind range
4728       E_Enumeration_Type ..
4729   --  E_Enumeration_Subtype
4730   --  E_Signed_Integer_Type
4731   --  E_Signed_Integer_Subtype
4732   --  E_Modular_Integer_Type
4733   --  E_Modular_Integer_Subtype
4734   --  E_Ordinary_Fixed_Point_Type
4735   --  E_Ordinary_Fixed_Point_Subtype
4736   --  E_Decimal_Fixed_Point_Type
4737   --  E_Decimal_Fixed_Point_Subtype
4738   --  E_Floating_Point_Type
4739       E_Floating_Point_Subtype;
4740
4741   subtype String_Kind                 is Entity_Kind range
4742       E_String_Type ..
4743   --  E_String_Subtype
4744       E_String_Literal_Subtype;
4745
4746   subtype Subprogram_Kind             is Entity_Kind range
4747       E_Function ..
4748   --  E_Operator
4749       E_Procedure;
4750
4751   subtype Signed_Integer_Kind         is Entity_Kind range
4752       E_Signed_Integer_Type ..
4753       E_Signed_Integer_Subtype;
4754
4755   subtype Task_Kind                   is Entity_Kind range
4756       E_Task_Type ..
4757       E_Task_Subtype;
4758
4759   subtype Type_Kind                   is Entity_Kind range
4760       E_Enumeration_Type ..
4761   --  E_Enumeration_Subtype
4762   --  E_Signed_Integer_Type
4763   --  E_Signed_Integer_Subtype
4764   --  E_Modular_Integer_Type
4765   --  E_Modular_Integer_Subtype
4766   --  E_Ordinary_Fixed_Point_Type
4767   --  E_Ordinary_Fixed_Point_Subtype
4768   --  E_Decimal_Fixed_Point_Type
4769   --  E_Decimal_Fixed_Point_Subtype
4770   --  E_Floating_Point_Type
4771   --  E_Floating_Point_Subtype
4772   --  E_Access_Type
4773   --  E_Access_Subtype
4774   --  E_Access_Attribute_Type
4775   --  E_Allocator_Type,
4776   --  E_General_Access_Type
4777   --  E_Access_Subprogram_Type,
4778   --  E_Access_Protected_Subprogram_Type
4779   --  E_Anonymous_Access_Subprogram_Type
4780   --  E_Anonymous_Access_Protected_Subprogram_Type
4781   --  E_Anonymous_Access_Type
4782   --  E_Array_Type
4783   --  E_Array_Subtype
4784   --  E_String_Type
4785   --  E_String_Subtype
4786   --  E_String_Literal_Subtype
4787   --  E_Class_Wide_Subtype
4788   --  E_Class_Wide_Type
4789   --  E_Record_Type
4790   --  E_Record_Subtype
4791   --  E_Record_Type_With_Private
4792   --  E_Record_Subtype_With_Private
4793   --  E_Private_Type
4794   --  E_Private_Subtype
4795   --  E_Limited_Private_Type
4796   --  E_Limited_Private_Subtype
4797   --  E_Incomplete_Type
4798   --  E_Incomplete_Subtype
4799   --  E_Task_Type
4800   --  E_Task_Subtype
4801   --  E_Protected_Type
4802   --  E_Protected_Subtype
4803   --  E_Exception_Type
4804       E_Subprogram_Type;
4805
4806   --------------------------------------------------------
4807   -- Description of Defined Attributes for Entity_Kinds --
4808   --------------------------------------------------------
4809
4810   --  For each enumeration value defined in Entity_Kind we list all the
4811   --  attributes defined in Einfo which can legally be applied to an entity
4812   --  of that kind. The implementation of the attribute functions (and for
4813   --  non-synthesized attributes, of the corresponding set procedures) are
4814   --  in the Einfo body.
4815
4816   --  The following attributes apply to all entities
4817
4818   --    Ekind                               (Ekind)
4819
4820   --    Chars                               (Name1)
4821   --    Next_Entity                         (Node2)
4822   --    Scope                               (Node3)
4823   --    Homonym                             (Node4)
4824   --    Etype                               (Node5)
4825   --    First_Rep_Item                      (Node6)
4826   --    Freeze_Node                         (Node7)
4827
4828   --    Address_Taken                       (Flag104)
4829   --    Can_Never_Be_Null                   (Flag38)
4830   --    Checks_May_Be_Suppressed            (Flag31)
4831   --    Debug_Info_Off                      (Flag166)
4832   --    Has_Convention_Pragma               (Flag119)
4833   --    Has_Delayed_Aspects                 (Flag200)
4834   --    Has_Delayed_Freeze                  (Flag18)
4835   --    Has_Fully_Qualified_Name            (Flag173)
4836   --    Has_Gigi_Rep_Item                   (Flag82)
4837   --    Has_Homonym                         (Flag56)
4838   --    Has_Pragma_Elaborate_Body           (Flag150)
4839   --    Has_Pragma_Inline                   (Flag157)
4840   --    Has_Pragma_Inline_Always            (Flag230)
4841   --    Has_Pragma_No_Inline                (Flag201)
4842   --    Has_Pragma_Pure                     (Flag203)
4843   --    Has_Pragma_Pure_Function            (Flag179)
4844   --    Has_Pragma_Thread_Local_Storage     (Flag169)
4845   --    Has_Pragma_Unmodified               (Flag233)
4846   --    Has_Pragma_Unreferenced             (Flag180)
4847   --    Has_Predicates                      (Flag250)
4848   --    Has_Private_Declaration             (Flag155)
4849   --    Has_Qualified_Name                  (Flag161)
4850   --    Has_Stream_Size_Clause              (Flag184)
4851   --    Has_Unknown_Discriminants           (Flag72)
4852   --    Has_Xref_Entry                      (Flag182)
4853   --    In_Private_Part                     (Flag45)
4854   --    Is_Ada_2005_Only                    (Flag185)
4855   --    Is_Ada_2012_Only                    (Flag199)
4856   --    Is_Bit_Packed_Array                 (Flag122)  (base type only)
4857   --    Is_Aliased                          (Flag15)
4858   --    Is_Character_Type                   (Flag63)
4859   --    Is_Child_Unit                       (Flag73)
4860   --    Is_Compilation_Unit                 (Flag149)
4861   --    Is_Completely_Hidden                (Flag103)
4862   --    Is_Discrim_SO_Function              (Flag176)
4863   --    Is_Dispatch_Table_Entity            (Flag234)
4864   --    Is_Dispatching_Operation            (Flag6)
4865   --    Is_Entry_Formal                     (Flag52)
4866   --    Is_Exported                         (Flag99)
4867   --    Is_First_Subtype                    (Flag70)
4868   --    Is_Formal_Subprogram                (Flag111)
4869   --    Is_Generic_Instance                 (Flag130)
4870   --    Is_Generic_Type                     (Flag13)
4871   --    Is_Hidden                           (Flag57)
4872   --    Is_Hidden_Open_Scope                (Flag171)
4873   --    Is_Immediately_Visible              (Flag7)
4874   --    Is_Implementation_Defined           (Flag254)
4875   --    Is_Imported                         (Flag24)
4876   --    Is_Inlined                          (Flag11)
4877   --    Is_Internal                         (Flag17)
4878   --    Is_Itype                            (Flag91)
4879   --    Is_Known_Non_Null                   (Flag37)
4880   --    Is_Known_Null                       (Flag204)
4881   --    Is_Known_Valid                      (Flag170)
4882   --    Is_Limited_Composite                (Flag106)
4883   --    Is_Limited_Record                   (Flag25)
4884   --    Is_Obsolescent                      (Flag153)
4885   --    Is_Package_Body_Entity              (Flag160)
4886   --    Is_Packed_Array_Type                (Flag138)
4887   --    Is_Potentially_Use_Visible          (Flag9)
4888   --    Is_Preelaborated                    (Flag59)
4889   --    Is_Primitive_Wrapper                (Flag195)
4890   --    Is_Public                           (Flag10)
4891   --    Is_Pure                             (Flag44)
4892   --    Is_Remote_Call_Interface            (Flag62)
4893   --    Is_Remote_Types                     (Flag61)
4894   --    Is_Renaming_Of_Object               (Flag112)
4895   --    Is_Shared_Passive                   (Flag60)
4896   --    Is_Statically_Allocated             (Flag28)
4897   --    Is_Tagged_Type                      (Flag55)
4898   --    Is_Trivial_Subprogram               (Flag235)
4899   --    Is_Unchecked_Union                  (Flag117)
4900   --    Is_Visible_Formal                   (Flag206)
4901   --    Is_VMS_Exception                    (Flag133)
4902   --    Kill_Elaboration_Checks             (Flag32)
4903   --    Kill_Range_Checks                   (Flag33)
4904   --    Low_Bound_Tested                    (Flag205)
4905   --    Materialize_Entity                  (Flag168)
4906   --    Needs_Debug_Info                    (Flag147)
4907   --    Never_Set_In_Source                 (Flag115)
4908   --    No_Return                           (Flag113)
4909   --    Overlays_Constant                   (Flag243)
4910   --    Referenced                          (Flag156)
4911   --    Referenced_As_LHS                   (Flag36)
4912   --    Referenced_As_Out_Parameter         (Flag227)
4913   --    Suppress_Elaboration_Warnings       (Flag148)
4914   --    Suppress_Style_Checks               (Flag165)
4915   --    Suppress_Value_Tracking_On_Call     (Flag217)
4916   --    Used_As_Generic_Actual              (Flag222)
4917   --    Warnings_Off                        (Flag96)
4918   --    Warnings_Off_Used                   (Flag236)
4919   --    Warnings_Off_Used_Unmodified        (Flag237)
4920   --    Warnings_Off_Used_Unreferenced      (Flag238)
4921   --    Was_Hidden                          (Flag196)
4922
4923   --    Declaration_Node                    (synth)
4924   --    Has_Foreign_Convention              (synth)
4925   --    Is_Dynamic_Scope                    (synth)
4926   --    Is_Standard_Character_Type          (synth)
4927   --    Underlying_Type                     (synth)
4928   --    all classification attributes       (synth)
4929
4930   --  The following list of access functions applies to all entities for
4931   --  types and subtypes. References to this list appear subsequently as
4932   --  as "(plus type attributes)" for each appropriate Entity_Kind.
4933
4934   --    Associated_Node_For_Itype           (Node8)
4935   --    Class_Wide_Type                     (Node9)
4936   --    Full_View                           (Node11)
4937   --    Esize                               (Uint12)
4938   --    RM_Size                             (Uint13)
4939   --    Alignment                           (Uint14)
4940   --    Related_Expression                  (Node24)
4941   --    Current_Use_Clause                  (Node27)
4942   --    Subprograms_For_Type                (Node29)
4943
4944   --    Depends_On_Private                  (Flag14)
4945   --    Discard_Names                       (Flag88)
4946   --    Finalize_Storage_Only               (Flag158)  (base type only)
4947   --    From_With_Type                      (Flag159)
4948   --    Has_Aliased_Components              (Flag135)  (base type only)
4949   --    Has_Alignment_Clause                (Flag46)
4950   --    Has_Atomic_Components               (Flag86)   (base type only)
4951   --    Has_Completion_In_Body              (Flag71)
4952   --    Has_Complex_Representation          (Flag140)  (base type only)
4953   --    Has_Constrained_Partial_View        (Flag187)
4954   --    Has_Controlled_Component            (Flag43)   (base type only)
4955   --    Has_Default_Aspect                  (Flag39)   (base type only)
4956   --    Has_Discriminants                   (Flag5)
4957   --    Has_Independent_Components          (Flag34)   (base type only)
4958   --    Has_Inheritable_Invariants          (Flag248)
4959   --    Has_Invariants                      (Flag232)
4960   --    Has_Non_Standard_Rep                (Flag75)   (base type only)
4961   --    Has_Object_Size_Clause              (Flag172)
4962   --    Has_Pragma_Preelab_Init             (Flag221)
4963   --    Has_Pragma_Unreferenced_Objects     (Flag212)
4964   --    Has_Primitive_Operations            (Flag120)  (base type only)
4965   --    Has_Size_Clause                     (Flag29)
4966   --    Has_Specified_Layout                (Flag100)  (base type only)
4967   --    Has_Specified_Stream_Input          (Flag190)
4968   --    Has_Specified_Stream_Output         (Flag191)
4969   --    Has_Specified_Stream_Read           (Flag192)
4970   --    Has_Specified_Stream_Write          (Flag193)
4971   --    Has_Task                            (Flag30)   (base type only)
4972   --    Has_Unchecked_Union                 (Flag123)  (base type only)
4973   --    Has_Volatile_Components             (Flag87)   (base type only)
4974   --    In_Use                              (Flag8)
4975   --    Is_Abstract_Type                    (Flag146)
4976   --    Is_Asynchronous                     (Flag81)
4977   --    Is_Atomic                           (Flag85)
4978   --    Is_Constr_Subt_For_U_Nominal        (Flag80)
4979   --    Is_Constr_Subt_For_UN_Aliased       (Flag141)
4980   --    Is_Controlled                       (Flag42)   (base type only)
4981   --    Is_Eliminated                       (Flag124)
4982   --    Is_Frozen                           (Flag4)
4983   --    Is_Generic_Actual_Type              (Flag94)
4984   --    Is_RACW_Stub_Type                   (Flag244)
4985   --    Is_Non_Static_Subtype               (Flag109)
4986   --    Is_Packed                           (Flag51)   (base type only)
4987   --    Is_Private_Composite                (Flag107)
4988   --    Is_Unsigned_Type                    (Flag144)
4989   --    Is_Volatile                         (Flag16)
4990   --    Itype_Printed                       (Flag202)  (itypes only)
4991   --    Known_To_Have_Preelab_Init          (Flag207)
4992   --    Must_Be_On_Byte_Boundary            (Flag183)
4993   --    Must_Have_Preelab_Init              (Flag208)
4994   --    Optimize_Alignment_Space            (Flag241)
4995   --    Optimize_Alignment_Time             (Flag242)
4996   --    Size_Depends_On_Discriminant        (Flag177)
4997   --    Size_Known_At_Compile_Time          (Flag92)
4998   --    Strict_Alignment                    (Flag145)  (base type only)
4999   --    Suppress_Initialization             (Flag105)
5000   --    Treat_As_Volatile                   (Flag41)
5001   --    Universal_Aliasing                  (Flag216)  (impl base type only)
5002
5003   --    Alignment_Clause                    (synth)
5004   --    Base_Type                           (synth)
5005   --    Implementation_Base_Type            (synth)
5006   --    Invariant_Procedure                 (synth)
5007   --    Is_Access_Protected_Subprogram_Type (synth)
5008   --    Predicate_Function                  (synth)
5009   --    Root_Type                           (synth)
5010   --    Size_Clause                         (synth)
5011
5012   ------------------------------------------
5013   -- Applicable attributes by entity kind --
5014   ------------------------------------------
5015
5016   --  E_Abstract_State
5017   --    Integrity_Level                     (Uint8)
5018   --    Refined_State                       (Node9)
5019   --    Is_Input_State                      (synth)
5020   --    Is_Null_State                       (synth)
5021   --    Is_Output_State                     (synth)
5022   --    Is_Volatile_State                   (synth)
5023
5024   --  E_Access_Protected_Subprogram_Type
5025   --    Equivalent_Type                     (Node18)
5026   --    Directly_Designated_Type            (Node20)
5027   --    Needs_No_Actuals                    (Flag22)
5028   --    Can_Use_Internal_Rep                (Flag229)
5029   --    (plus type attributes)
5030
5031   --  E_Access_Subprogram_Type
5032   --    Equivalent_Type                     (Node18)   (remote types only)
5033   --    Directly_Designated_Type            (Node20)
5034   --    Interface_Name                      (Node21)   (JGNAT usage only)
5035   --    Needs_No_Actuals                    (Flag22)
5036   --    Original_Access_Type                (Node26)
5037   --    Can_Use_Internal_Rep                (Flag229)
5038   --    (plus type attributes)
5039
5040   --  E_Access_Type
5041   --  E_Access_Subtype
5042   --    Storage_Size_Variable               (Node15)   (base type only)
5043   --    Master_Id                           (Node17)
5044   --    Directly_Designated_Type            (Node20)
5045   --    Associated_Storage_Pool             (Node22)   (base type only)
5046   --    Finalization_Master                 (Node23)   (base type only)
5047   --    Has_Pragma_Controlled               (Flag27)   (base type only)
5048   --    Has_Storage_Size_Clause             (Flag23)   (base type only)
5049   --    Is_Access_Constant                  (Flag69)
5050   --    Is_Local_Anonymous_Access           (Flag194)
5051   --    Is_Pure_Unit_Access_Type            (Flag189)
5052   --    No_Pool_Assigned                    (Flag131)  (base type only)
5053   --    No_Strict_Aliasing                  (Flag136)  (base type only)
5054   --    (plus type attributes)
5055
5056   --  E_Access_Attribute_Type
5057   --    Directly_Designated_Type            (Node20)
5058   --    (plus type attributes)
5059
5060   --  E_Allocator_Type
5061   --    Directly_Designated_Type            (Node20)
5062   --    (plus type attributes)
5063
5064   --  E_Anonymous_Access_Subprogram_Type
5065   --  E_Anonymous_Access_Protected_Subprogram_Type
5066   --    Storage_Size_Variable               (Node15)   ??? is this needed ???
5067   --    Directly_Designated_Type            (Node20)
5068   --    Can_Use_Internal_Rep                (Flag229)
5069   --    (plus type attributes)
5070
5071   --  E_Anonymous_Access_Type
5072   --    Storage_Size_Variable               (Node15)   ??? is this needed ???
5073   --    Directly_Designated_Type            (Node20)
5074   --    Finalization_Master                 (Node23)
5075   --    (plus type attributes)
5076
5077   --  E_Array_Type
5078   --  E_Array_Subtype
5079   --    First_Index                         (Node17)
5080   --    Default_Aspect_Component_Value      (Node19)
5081   --    Component_Type                      (Node20)   (base type only)
5082   --    Original_Array_Type                 (Node21)
5083   --    Component_Size                      (Uint22)   (base type only)
5084   --    Packed_Array_Type                   (Node23)
5085   --    Related_Array_Object                (Node25)
5086   --    Component_Alignment                 (special)  (base type only)
5087   --    Has_Component_Size_Clause           (Flag68)   (base type only)
5088   --    Has_Pragma_Pack                     (Flag121)  (impl base type only)
5089   --    Is_Constrained                      (Flag12)
5090   --    Reverse_Storage_Order               (Flag93)   (base type only)
5091   --    Next_Index                          (synth)
5092   --    Number_Dimensions                   (synth)
5093   --    (plus type attributes)
5094
5095   --  E_Block
5096   --    Block_Node                          (Node11)
5097   --    First_Entity                        (Node17)
5098   --    Last_Entity                         (Node20)
5099   --    Scope_Depth_Value                   (Uint22)
5100   --    Entry_Cancel_Parameter              (Node23)
5101   --    Delay_Cleanups                      (Flag114)
5102   --    Discard_Names                       (Flag88)
5103   --    Has_Master_Entity                   (Flag21)
5104   --    Has_Nested_Block_With_Handler       (Flag101)
5105   --    Sec_Stack_Needed_For_Return         (Flag167)
5106   --    Uses_Sec_Stack                      (Flag95)
5107   --    Scope_Depth                         (synth)
5108
5109   --  E_Class_Wide_Type
5110   --  E_Class_Wide_Subtype
5111   --    Direct_Primitive_Operations         (Elist10)
5112   --    Cloned_Subtype                      (Node16)   (subtype case only)
5113   --    First_Entity                        (Node17)
5114   --    Equivalent_Type                     (Node18)   (always Empty for type)
5115   --    Last_Entity                         (Node20)
5116   --    First_Component                     (synth)
5117   --    First_Component_Or_Discriminant     (synth)
5118   --    (plus type attributes)
5119
5120   --  E_Component
5121   --    Normalized_First_Bit                (Uint8)
5122   --    Current_Value                       (Node9)    (always Empty)
5123   --    Normalized_Position_Max             (Uint10)
5124   --    Component_Bit_Offset                (Uint11)
5125   --    Esize                               (Uint12)
5126   --    Component_Clause                    (Node13)
5127   --    Normalized_Position                 (Uint14)
5128   --    DT_Entry_Count                      (Uint15)
5129   --    Entry_Formal                        (Node16)
5130   --    Prival                              (Node17)
5131   --    Renamed_Object                      (Node18)   (always Empty)
5132   --    Discriminant_Checking_Func          (Node20)
5133   --    Interface_Name                      (Node21)   (JGNAT usage only)
5134   --    Original_Record_Component           (Node22)
5135   --    DT_Offset_To_Top_Func               (Node25)
5136   --    Related_Type                        (Node27)
5137   --    Has_Biased_Representation           (Flag139)
5138   --    Has_Per_Object_Constraint           (Flag154)
5139   --    Is_Atomic                           (Flag85)
5140   --    Is_Tag                              (Flag78)
5141   --    Is_Volatile                         (Flag16)
5142   --    Treat_As_Volatile                   (Flag41)
5143   --    Is_Return_Object                    (Flag209)
5144   --    Next_Component                      (synth)
5145   --    Next_Component_Or_Discriminant      (synth)
5146
5147   --  E_Constant
5148   --  E_Loop_Parameter
5149   --    Current_Value                       (Node9)    (always Empty)
5150   --    Discriminal_Link                    (Node10)
5151   --    Full_View                           (Node11)
5152   --    Esize                               (Uint12)
5153   --    Extra_Accessibility                 (Node13)   (constants only)
5154   --    Alignment                           (Uint14)
5155   --    Status_Flag_Or_Transient_Decl       (Node15)   (constants only)
5156   --    Actual_Subtype                      (Node17)
5157   --    Renamed_Object                      (Node18)
5158   --    Size_Check_Code                     (Node19)   (constants only)
5159   --    Prival_Link                         (Node20)   (privals only)
5160   --    Interface_Name                      (Node21)   (constants only)
5161   --    Related_Type                        (Node27)   (constants only)
5162   --    Initialization_Statements           (Node28)
5163   --    Has_Alignment_Clause                (Flag46)
5164   --    Has_Atomic_Components               (Flag86)
5165   --    Has_Biased_Representation           (Flag139)
5166   --    Has_Completion                      (Flag26)   (constants only)
5167   --    Has_Independent_Components          (Flag34)   (base type only)
5168   --    Has_Thunks                          (Flag228)  (constants only)
5169   --    Has_Size_Clause                     (Flag29)
5170   --    Has_Up_Level_Access                 (Flag215)
5171   --    Has_Volatile_Components             (Flag87)
5172   --    Is_Atomic                           (Flag85)
5173   --    Is_Eliminated                       (Flag124)
5174   --    Is_Processed_Transient              (Flag252)  (constants only)
5175   --    Is_Return_Object                    (Flag209)
5176   --    Is_True_Constant                    (Flag163)
5177   --    Is_Volatile                         (Flag16)
5178   --    Optimize_Alignment_Space            (Flag241)  (constants only)
5179   --    Optimize_Alignment_Time             (Flag242)  (constants only)
5180   --    Treat_As_Volatile                   (Flag41)
5181   --    Address_Clause                      (synth)
5182   --    Alignment_Clause                    (synth)
5183   --    Size_Clause                         (synth)
5184
5185   --  E_Decimal_Fixed_Point_Type
5186   --  E_Decimal_Fixed_Subtype
5187   --    Scale_Value                         (Uint15)
5188   --    Digits_Value                        (Uint17)
5189   --    Scalar_Range                        (Node20)
5190   --    Delta_Value                         (Ureal18)
5191   --    Small_Value                         (Ureal21)
5192   --    Has_Machine_Radix_Clause            (Flag83)
5193   --    Machine_Radix_10                    (Flag84)
5194   --    Aft_Value                           (synth)
5195   --    Type_Low_Bound                      (synth)
5196   --    Type_High_Bound                     (synth)
5197   --    (plus type attributes)
5198
5199   --  E_Discriminant
5200   --    Normalized_First_Bit                (Uint8)
5201   --    Current_Value                       (Node9)    (always Empty)
5202   --    Normalized_Position_Max             (Uint10)
5203   --    Component_Bit_Offset                (Uint11)
5204   --    Esize                               (Uint12)
5205   --    Component_Clause                    (Node13)
5206   --    Normalized_Position                 (Uint14)
5207   --    Discriminant_Number                 (Uint15)
5208   --    Discriminal                         (Node17)
5209   --    Renamed_Object                      (Node18)   (always Empty)
5210   --    Corresponding_Discriminant          (Node19)
5211   --    Discriminant_Default_Value          (Node20)
5212   --    Interface_Name                      (Node21)   (JGNAT usage only)
5213   --    Original_Record_Component           (Node22)
5214   --    CR_Discriminant                     (Node23)
5215   --    Is_Return_Object                    (Flag209)
5216   --    Next_Component_Or_Discriminant      (synth)
5217   --    Next_Discriminant                   (synth)
5218   --    Next_Stored_Discriminant            (synth)
5219
5220   --  E_Entry
5221   --  E_Entry_Family
5222   --    Protected_Body_Subprogram           (Node11)
5223   --    Barrier_Function                    (Node12)
5224   --    Entry_Parameters_Type               (Node15)
5225   --    First_Entity                        (Node17)
5226   --    Alias                               (Node18)   (for entry only. Empty)
5227   --    Last_Entity                         (Node20)
5228   --    Accept_Address                      (Elist21)
5229   --    Scope_Depth_Value                   (Uint22)
5230   --    Protection_Object                   (Node23)   (protected kind)
5231   --    Contract                            (Node24)   (for entry only)
5232   --    PPC_Wrapper                         (Node25)
5233   --    Extra_Formals                       (Node28)
5234   --    Default_Expressions_Processed       (Flag108)
5235   --    Entry_Accepted                      (Flag152)
5236   --    Is_AST_Entry                        (Flag132)  (for entry only)
5237   --    Needs_No_Actuals                    (Flag22)
5238   --    Sec_Stack_Needed_For_Return         (Flag167)
5239   --    Uses_Sec_Stack                      (Flag95)
5240   --    Address_Clause                      (synth)
5241   --    Entry_Index_Type                    (synth)
5242   --    First_Formal                        (synth)
5243   --    First_Formal_With_Extras            (synth)
5244   --    Last_Formal                         (synth)
5245   --    Number_Formals                      (synth)
5246   --    Scope_Depth                         (synth)
5247
5248   --  E_Entry_Index_Parameter
5249   --    Entry_Index_Constant                (Node18)
5250
5251   --  E_Enumeration_Literal
5252   --    Enumeration_Pos                     (Uint11)
5253   --    Enumeration_Rep                     (Uint12)
5254   --    Alias                               (Node18)
5255   --    Enumeration_Rep_Expr                (Node22)
5256   --    Next_Literal                        (synth)
5257
5258   --  E_Enumeration_Type
5259   --  E_Enumeration_Subtype
5260   --    Lit_Indexes                         (Node15)   (root type only)
5261   --    Lit_Strings                         (Node16)   (root type only)
5262   --    First_Literal                       (Node17)
5263   --    Default_Aspect_Value                (Node19)
5264   --    Scalar_Range                        (Node20)
5265   --    Enum_Pos_To_Rep                     (Node23)   (type only)
5266   --    Static_Predicate                    (List25)
5267   --    Has_Biased_Representation           (Flag139)
5268   --    Has_Contiguous_Rep                  (Flag181)
5269   --    Has_Enumeration_Rep_Clause          (Flag66)
5270   --    Has_Pragma_Ordered                  (Flag198)  (base type only)
5271   --    Nonzero_Is_True                     (Flag162)  (base type only)
5272   --    Type_Low_Bound                      (synth)
5273   --    Type_High_Bound                     (synth)
5274   --    (plus type attributes)
5275
5276   --  E_Exception
5277   --    Esize                               (Uint12)
5278   --    Alignment                           (Uint14)
5279   --    Renamed_Entity                      (Node18)
5280   --    Register_Exception_Call             (Node20)
5281   --    Interface_Name                      (Node21)
5282   --    Exception_Code                      (Uint22)
5283   --    Discard_Names                       (Flag88)
5284   --    Is_VMS_Exception                    (Flag133)
5285   --    Is_Raised                           (Flag224)
5286
5287   --  E_Exception_Type
5288   --    Equivalent_Type                     (Node18)
5289   --    (plus type attributes)
5290
5291   --  E_Floating_Point_Type
5292   --  E_Floating_Point_Subtype
5293   --    Digits_Value                        (Uint17)
5294   --    Float_Rep                           (Uint10)   (Float_Rep_Kind)
5295   --    Default_Aspect_Value                (Node19)
5296   --    Scalar_Range                        (Node20)
5297   --    Machine_Emax_Value                  (synth)
5298   --    Machine_Emin_Value                  (synth)
5299   --    Machine_Mantissa_Value              (synth)
5300   --    Machine_Radix_Value                 (synth)
5301   --    Model_Emin_Value                    (synth)
5302   --    Model_Epsilon_Value                 (synth)
5303   --    Model_Mantissa_Value                (synth)
5304   --    Model_Small_Value                   (synth)
5305   --    Safe_Emax_Value                     (synth)
5306   --    Safe_First_Value                    (synth)
5307   --    Safe_Last_Value                     (synth)
5308   --    Type_Low_Bound                      (synth)
5309   --    Type_High_Bound                     (synth)
5310   --    Vax_Float                           (synth)
5311   --    (plus type attributes)
5312
5313   --  E_Function
5314   --  E_Generic_Function
5315   --    Mechanism                           (Uint8)    (Mechanism_Type)
5316   --    Renaming_Map                        (Uint9)
5317   --    Handler_Records                     (List10)   (non-generic case only)
5318   --    Protected_Body_Subprogram           (Node11)
5319   --    Next_Inlined_Subprogram             (Node12)
5320   --    Elaboration_Entity                  (Node13)   (not implicit /=)
5321   --    First_Optional_Parameter            (Node14)   (non-generic case only)
5322   --    DT_Position                         (Uint15)
5323   --    DTC_Entity                          (Node16)
5324   --    First_Entity                        (Node17)
5325   --    Alias                               (Node18)   (non-generic case only)
5326   --    Renamed_Entity                      (Node18)   (generic case only)
5327   --    Extra_Accessibility_Of_Result       (Node19)   (non-generic case only)
5328   --    Last_Entity                         (Node20)
5329   --    Interface_Name                      (Node21)
5330   --    Scope_Depth_Value                   (Uint22)
5331   --    Generic_Renamings                   (Elist23)  (for an instance)
5332   --    Inner_Instances                     (Elist23)  (generic case only)
5333   --    Protection_Object                   (Node23)   (for concurrent kind)
5334   --    Contract                            (Node24)
5335   --    Interface_Alias                     (Node25)
5336   --    Overridden_Operation                (Node26)
5337   --    Wrapped_Entity                      (Node27)   (non-generic case only)
5338   --    Extra_Formals                       (Node28)
5339   --    Subprograms_For_Type                (Node29)
5340   --    Corresponding_Equality              (Node30)   (implicit /= only)
5341   --    Body_Needed_For_SAL                 (Flag40)
5342   --    Elaboration_Entity_Required         (Flag174)
5343   --    Default_Expressions_Processed       (Flag108)
5344   --    Delay_Cleanups                      (Flag114)
5345   --    Delay_Subprogram_Descriptors        (Flag50)
5346   --    Discard_Names                       (Flag88)
5347   --    Has_Anonymous_Master                (Flag253)
5348   --    Has_Completion                      (Flag26)
5349   --    Has_Controlling_Result              (Flag98)
5350   --    Has_Invariants                      (Flag232)
5351   --    Has_Master_Entity                   (Flag21)
5352   --    Has_Missing_Return                  (Flag142)
5353   --    Has_Nested_Block_With_Handler       (Flag101)
5354   --    Has_Postconditions                  (Flag240)
5355   --    Has_Recursive_Call                  (Flag143)
5356   --    Is_Abstract_Subprogram              (Flag19)   (non-generic case only)
5357   --    Is_Called                           (Flag102)  (non-generic case only)
5358   --    Is_Constructor                      (Flag76)
5359   --    Is_Discrim_SO_Function              (Flag176)
5360   --    Is_Eliminated                       (Flag124)
5361   --    Is_Instantiated                     (Flag126)  (generic case only)
5362   --    Is_Intrinsic_Subprogram             (Flag64)
5363   --    Is_Machine_Code_Subprogram          (Flag137)  (non-generic case only)
5364   --    Is_Primitive                        (Flag218)
5365   --    Is_Primitive_Wrapper                (Flag195)  (non-generic case only)
5366   --    Is_Private_Descendant               (Flag53)
5367   --    Is_Private_Primitive                (Flag245)  (non-generic case only)
5368   --    Is_Pure                             (Flag44)
5369   --    Is_Thunk                            (Flag225)
5370   --    Is_Visible_Lib_Unit                 (Flag116)
5371   --    Needs_No_Actuals                    (Flag22)
5372   --    Requires_Overriding                 (Flag213)  (non-generic case only)
5373   --    Return_Present                      (Flag54)
5374   --    Returns_By_Ref                      (Flag90)
5375   --    Sec_Stack_Needed_For_Return         (Flag167)
5376   --    Uses_Sec_Stack                      (Flag95)
5377   --    Address_Clause                      (synth)
5378   --    First_Formal                        (synth)
5379   --    First_Formal_With_Extras            (synth)
5380   --    Last_Formal                         (synth)
5381   --    Number_Formals                      (synth)
5382   --    Scope_Depth                         (synth)
5383
5384   --  E_General_Access_Type
5385   --    Storage_Size_Variable               (Node15)   (base type only)
5386   --    Master_Id                           (Node17)
5387   --    Directly_Designated_Type            (Node20)
5388   --    Associated_Storage_Pool             (Node22)   (root type only)
5389   --    Finalization_Master                 (Node23)   (root type only)
5390   --    (plus type attributes)
5391
5392   --  E_Generic_In_Parameter
5393   --  E_Generic_In_Out_Parameter
5394   --    Current_Value                       (Node9)    (always Empty)
5395   --    Entry_Component                     (Node11)
5396   --    Actual_Subtype                      (Node17)
5397   --    Renamed_Object                      (Node18)   (always Empty)
5398   --    Default_Value                       (Node20)
5399   --    Protected_Formal                    (Node22)
5400   --    Is_Controlling_Formal               (Flag97)
5401   --    Is_Return_Object                    (Flag209)
5402   --    Parameter_Mode                      (synth)
5403
5404   --  E_Incomplete_Type
5405   --  E_Incomplete_Subtype
5406   --    Direct_Primitive_Operations         (Elist10)
5407   --    Non_Limited_View                    (Node17)
5408   --    Private_Dependents                  (Elist18)
5409   --    Discriminant_Constraint             (Elist21)
5410   --    Stored_Constraint                   (Elist23)
5411   --    (plus type attributes)
5412
5413   --  E_In_Parameter
5414   --  E_In_Out_Parameter
5415   --  E_Out_Parameter
5416   --    Mechanism                           (Uint8)    (Mechanism_Type)
5417   --    Current_Value                       (Node9)
5418   --    Discriminal_Link                    (Node10)   (discriminals only)
5419   --    Entry_Component                     (Node11)
5420   --    Esize                               (Uint12)
5421   --    Extra_Accessibility                 (Node13)
5422   --    Alignment                           (Uint14)
5423   --    Extra_Formal                        (Node15)
5424   --    Unset_Reference                     (Node16)
5425   --    Actual_Subtype                      (Node17)
5426   --    Renamed_Object                      (Node18)
5427   --    Spec_Entity                         (Node19)
5428   --    Default_Value                       (Node20)
5429   --    Default_Expr_Function               (Node21)
5430   --    Protected_Formal                    (Node22)
5431   --    Extra_Constrained                   (Node23)
5432   --    Last_Assignment                     (Node26)   (OUT, IN-OUT only)
5433   --    Has_Initial_Value                   (Flag219)
5434   --    Is_Controlling_Formal               (Flag97)
5435   --    Is_Only_Out_Parameter               (Flag226)
5436   --    Is_Optional_Parameter               (Flag134)
5437   --    Low_Bound_Tested                    (Flag205)
5438   --    Is_Return_Object                    (Flag209)
5439   --    Parameter_Mode                      (synth)
5440
5441   --  E_Label
5442   --    Enclosing_Scope                     (Node18)
5443   --    Reachable                           (Flag49)
5444
5445   --  E_Limited_Private_Type
5446   --  E_Limited_Private_Subtype
5447   --    First_Entity                        (Node17)
5448   --    Private_Dependents                  (Elist18)
5449   --    Underlying_Full_View                (Node19)
5450   --    Last_Entity                         (Node20)
5451   --    Discriminant_Constraint             (Elist21)
5452   --    Private_View                        (Node22)
5453   --    Stored_Constraint                   (Elist23)
5454   --    Has_Completion                      (Flag26)
5455   --    (plus type attributes)
5456
5457   --  E_Loop
5458   --    First_Exit_Statement                (Node8)
5459   --    Loop_Entry_Attributes               (Elist10)
5460   --    Has_Exit                            (Flag47)
5461   --    Has_Master_Entity                   (Flag21)
5462   --    Has_Nested_Block_With_Handler       (Flag101)
5463
5464   --  E_Modular_Integer_Type
5465   --  E_Modular_Integer_Subtype
5466   --    Modulus                             (Uint17)   (base type only)
5467   --    Default_Aspect_Value                (Node19)
5468   --    Original_Array_Type                 (Node21)
5469   --    Scalar_Range                        (Node20)
5470   --    Static_Predicate                    (List25)
5471   --    Non_Binary_Modulus                  (Flag58)   (base type only)
5472   --    Has_Biased_Representation           (Flag139)
5473   --    Type_Low_Bound                      (synth)
5474   --    Type_High_Bound                     (synth)
5475   --    (plus type attributes)
5476
5477   --  E_Named_Integer
5478
5479   --  E_Named_Real
5480
5481   --  E_Operator
5482   --    First_Entity                        (Node17)
5483   --    Alias                               (Node18)
5484   --    Extra_Accessibility_Of_Result       (Node19)
5485   --    Last_Entity                         (Node20)
5486   --    Overridden_Operation                (Node26)
5487   --    Subprograms_For_Type                (Node29)
5488   --    Has_Invariants                      (Flag232)
5489   --    Has_Postconditions                  (Flag240)
5490   --    Is_Machine_Code_Subprogram          (Flag137)
5491   --    Is_Pure                             (Flag44)
5492   --    Is_Intrinsic_Subprogram             (Flag64)
5493   --    Is_Primitive                        (Flag218)
5494   --    Is_Thunk                            (Flag225)
5495   --    Default_Expressions_Processed       (Flag108)
5496   --    Aren't there more flags and fields? seems like this list should be
5497   --    more similar to the E_Function list, which is much longer ???
5498
5499   --  E_Ordinary_Fixed_Point_Type
5500   --  E_Ordinary_Fixed_Point_Subtype
5501   --    Delta_Value                         (Ureal18)
5502   --    Default_Aspect_Value                (Node19)
5503   --    Scalar_Range                        (Node20)
5504   --    Small_Value                         (Ureal21)
5505   --    Has_Small_Clause                    (Flag67)
5506   --    Aft_Value                           (synth)
5507   --    Type_Low_Bound                      (synth)
5508   --    Type_High_Bound                     (synth)
5509   --    (plus type attributes)
5510
5511   --  E_Package
5512   --  E_Generic_Package
5513   --    Dependent_Instances                 (Elist8)   (for an instance)
5514   --    Renaming_Map                        (Uint9)
5515   --    Handler_Records                     (List10)   (non-generic case only)
5516   --    Generic_Homonym                     (Node11)   (generic case only)
5517   --    Associated_Formal_Package           (Node12)
5518   --    Elaboration_Entity                  (Node13)
5519   --    Shadow_Entities                     (List14)
5520   --    Related_Instance                    (Node15)   (non-generic case only)
5521   --    First_Private_Entity                (Node16)
5522   --    First_Entity                        (Node17)
5523   --    Renamed_Entity                      (Node18)
5524   --    Body_Entity                         (Node19)
5525   --    Last_Entity                         (Node20)
5526   --    Interface_Name                      (Node21)
5527   --    Scope_Depth_Value                   (Uint22)
5528   --    Generic_Renamings                   (Elist23)  (for an instance)
5529   --    Inner_Instances                     (Elist23)  (generic case only)
5530   --    Limited_View                        (Node23)   (non-generic/instance)
5531   --    Finalizer                           (Node24)   (non-generic case only)
5532   --    Abstract_States                     (Elist25)
5533   --    Package_Instantiation               (Node26)
5534   --    Current_Use_Clause                  (Node27)
5535   --    Delay_Subprogram_Descriptors        (Flag50)
5536   --    Body_Needed_For_SAL                 (Flag40)
5537   --    Discard_Names                       (Flag88)
5538   --    Elaboration_Entity_Required         (Flag174)
5539   --    Elaborate_Body_Desirable            (Flag210)  (non-generic case only)
5540   --    From_With_Type                      (Flag159)
5541   --    Has_All_Calls_Remote                (Flag79)
5542   --    Has_Anonymous_Master                (Flag253)
5543   --    Has_Completion                      (Flag26)
5544   --    Has_Forward_Instantiation           (Flag175)
5545   --    Has_Master_Entity                   (Flag21)
5546   --    Has_RACW                            (Flag214)  (non-generic case only)
5547   --    In_Package_Body                     (Flag48)
5548   --    In_Use                              (Flag8)
5549   --    Is_Instantiated                     (Flag126)
5550   --    Is_Private_Descendant               (Flag53)
5551   --    Is_Visible_Lib_Unit                 (Flag116)
5552   --    Renamed_In_Spec                     (Flag231)  (non-generic case only)
5553   --    Static_Elaboration_Desired          (Flag77)   (non-generic case only)
5554   --    Is_Wrapper_Package                  (synth)    (non-generic case only)
5555   --    Scope_Depth                         (synth)
5556
5557   --  E_Package_Body
5558   --    Handler_Records                     (List10)   (non-generic case only)
5559   --    Related_Instance                    (Node15)   (non-generic case only)
5560   --    First_Entity                        (Node17)
5561   --    Spec_Entity                         (Node19)
5562   --    Last_Entity                         (Node20)
5563   --    Scope_Depth_Value                   (Uint22)
5564   --    Finalizer                           (Node24)   (non-generic case only)
5565   --    Delay_Subprogram_Descriptors        (Flag50)
5566   --    Has_Anonymous_Master                (Flag253)
5567   --    Scope_Depth                         (synth)
5568
5569   --  E_Private_Type
5570   --  E_Private_Subtype
5571   --    Direct_Primitive_Operations         (Elist10)
5572   --    First_Entity                        (Node17)
5573   --    Private_Dependents                  (Elist18)
5574   --    Underlying_Full_View                (Node19)
5575   --    Last_Entity                         (Node20)
5576   --    Discriminant_Constraint             (Elist21)
5577   --    Private_View                        (Node22)
5578   --    Stored_Constraint                   (Elist23)
5579   --    Has_Completion                      (Flag26)
5580   --    Is_Controlled                       (Flag42)   (base type only)
5581   --    Is_For_Access_Subtype               (Flag118)  (subtype only)
5582   --    (plus type attributes)
5583
5584   --  E_Procedure
5585   --  E_Generic_Procedure
5586   --    Postcondition_Proc                  (Node8)    (non-generic case only)
5587   --    Renaming_Map                        (Uint9)
5588   --    Handler_Records                     (List10)   (non-generic case only)
5589   --    Protected_Body_Subprogram           (Node11)
5590   --    Next_Inlined_Subprogram             (Node12)
5591   --    Elaboration_Entity                  (Node13)
5592   --    First_Optional_Parameter            (Node14)   (non-generic case only)
5593   --    DT_Position                         (Uint15)
5594   --    DTC_Entity                          (Node16)
5595   --    First_Entity                        (Node17)
5596   --    Alias                               (Node18)   (non-generic case only)
5597   --    Renamed_Entity                      (Node18)   (generic case only)
5598   --    Last_Entity                         (Node20)
5599   --    Interface_Name                      (Node21)
5600   --    Scope_Depth_Value                   (Uint22)
5601   --    Generic_Renamings                   (Elist23)  (for an instance)
5602   --    Inner_Instances                     (Elist23)  (generic case only)
5603   --    Protection_Object                   (Node23)   (for concurrent kind)
5604   --    Contract                            (Node24)
5605   --    Interface_Alias                     (Node25)
5606   --    Overridden_Operation                (Node26)   (never for init proc)
5607   --    Wrapped_Entity                      (Node27)   (non-generic case only)
5608   --    Extra_Formals                       (Node28)
5609   --    Static_Initialization               (Node30)   (init_proc only)
5610   --    Body_Needed_For_SAL                 (Flag40)
5611   --    Delay_Cleanups                      (Flag114)
5612   --    Discard_Names                       (Flag88)
5613   --    Elaboration_Entity_Required         (Flag174)
5614   --    Default_Expressions_Processed       (Flag108)
5615   --    Delay_Cleanups                      (Flag114)
5616   --    Delay_Subprogram_Descriptors        (Flag50)
5617   --    Discard_Names                       (Flag88)
5618   --    Has_Anonymous_Master                (Flag253)
5619   --    Has_Completion                      (Flag26)
5620   --    Has_Invariants                      (Flag232)
5621   --    Has_Master_Entity                   (Flag21)
5622   --    Has_Nested_Block_With_Handler       (Flag101)
5623   --    Has_Postconditions                  (Flag240)
5624   --    Is_Abstract_Subprogram              (Flag19)   (non-generic case only)
5625   --    Is_Asynchronous                     (Flag81)
5626   --    Is_Called                           (Flag102)  (non-generic case only)
5627   --    Is_Constructor                      (Flag76)
5628   --    Is_Eliminated                       (Flag124)
5629   --    Is_Instantiated                     (Flag126)  (generic case only)
5630   --    Is_Interrupt_Handler                (Flag89)
5631   --    Is_Intrinsic_Subprogram             (Flag64)
5632   --    Is_Machine_Code_Subprogram          (Flag137)  (non-generic case only)
5633   --    Is_Null_Init_Proc                   (Flag178)
5634   --    Is_Primitive                        (Flag218)
5635   --    Is_Primitive_Wrapper                (Flag195)  (non-generic case only)
5636   --    Is_Private_Descendant               (Flag53)
5637   --    Is_Private_Primitive                (Flag245)  (non-generic case only)
5638   --    Is_Pure                             (Flag44)
5639   --    Is_Thunk                            (Flag225)
5640   --    Is_Valued_Procedure                 (Flag127)
5641   --    Is_Visible_Lib_Unit                 (Flag116)
5642   --    Needs_No_Actuals                    (Flag22)
5643   --    No_Return                           (Flag113)
5644   --    Requires_Overriding                 (Flag213)  (non-generic case only)
5645   --    Sec_Stack_Needed_For_Return         (Flag167)
5646   --    Address_Clause                      (synth)
5647   --    First_Formal                        (synth)
5648   --    First_Formal_With_Extras            (synth)
5649   --    Is_Finalizer                        (synth)
5650   --    Last_Formal                         (synth)
5651   --    Number_Formals                      (synth)
5652
5653   --  E_Protected_Body
5654   --    (any others??? First/Last Entity, Scope_Depth???)
5655
5656   --  E_Protected_Object
5657
5658   --  E_Protected_Type
5659   --  E_Protected_Subtype
5660   --    Direct_Primitive_Operations         (Elist10)
5661   --    Entry_Bodies_Array                  (Node15)
5662   --    First_Private_Entity                (Node16)
5663   --    First_Entity                        (Node17)
5664   --    Corresponding_Record_Type           (Node18)
5665   --    Last_Entity                         (Node20)
5666   --    Discriminant_Constraint             (Elist21)
5667   --    Scope_Depth_Value                   (Uint22)
5668   --    Scope_Depth                         (synth)
5669   --    Stored_Constraint                   (Elist23)
5670   --    Has_Interrupt_Handler               (synth)
5671   --    Sec_Stack_Needed_For_Return         (Flag167)  ???
5672   --    Uses_Lock_Free                      (Flag188)
5673   --    Uses_Sec_Stack                      (Flag95)   ???
5674   --    Has_Entries                         (synth)
5675   --    Number_Entries                      (synth)
5676
5677   --  E_Record_Type
5678   --  E_Record_Subtype
5679   --    Direct_Primitive_Operations         (Elist10)
5680   --    Access_Disp_Table                   (Elist16)  (base type only)
5681   --    Cloned_Subtype                      (Node16)   (subtype case only)
5682   --    First_Entity                        (Node17)
5683   --    Corresponding_Concurrent_Type       (Node18)
5684   --    Parent_Subtype                      (Node19)   (base type only)
5685   --    Last_Entity                         (Node20)
5686   --    Discriminant_Constraint             (Elist21)
5687   --    Corresponding_Remote_Type           (Node22)
5688   --    Stored_Constraint                   (Elist23)
5689   --    Interfaces                          (Elist25)
5690   --    Dispatch_Table_Wrappers             (Elist26)  (base type only)
5691   --    Underlying_Record_View              (Node28)   (base type only)
5692   --    Component_Alignment                 (special)  (base type only)
5693   --    C_Pass_By_Copy                      (Flag125)  (base type only)
5694   --    Has_Dispatch_Table                  (Flag220)  (base tagged type only)
5695   --    Has_External_Tag_Rep_Clause         (Flag110)
5696   --    Has_Pragma_Pack                     (Flag121)  (impl base type only)
5697   --    Has_Private_Ancestor                (Flag151)
5698   --    Has_Record_Rep_Clause               (Flag65)   (base type only)
5699   --    Has_Static_Discriminants            (Flag211)  (subtype only)
5700   --    Is_Class_Wide_Equivalent_Type       (Flag35)
5701   --    Is_Concurrent_Record_Type           (Flag20)
5702   --    Is_Constrained                      (Flag12)
5703   --    Is_Controlled                       (Flag42)   (base type only)
5704   --    Is_Interface                        (Flag186)
5705   --    Is_Limited_Interface                (Flag197)
5706   --    OK_To_Reorder_Components            (Flag239)  (base type only)
5707   --    Reverse_Bit_Order                   (Flag164)  (base type only)
5708   --    Reverse_Storage_Order               (Flag93)   (base type only)
5709   --    First_Component                     (synth)
5710   --    First_Component_Or_Discriminant     (synth)
5711   --    (plus type attributes)
5712
5713   --  E_Record_Type_With_Private
5714   --  E_Record_Subtype_With_Private
5715   --    Direct_Primitive_Operations         (Elist10)
5716   --    First_Entity                        (Node17)
5717   --    Private_Dependents                  (Elist18)
5718   --    Underlying_Full_View                (Node19)
5719   --    Last_Entity                         (Node20)
5720   --    Discriminant_Constraint             (Elist21)
5721   --    Private_View                        (Node22)
5722   --    Stored_Constraint                   (Elist23)
5723   --    Interfaces                          (Elist25)
5724   --    Has_Completion                      (Flag26)
5725   --    Has_Private_Ancestor                (Flag151)
5726   --    Has_Record_Rep_Clause               (Flag65)   (base type only)
5727   --    Has_External_Tag_Rep_Clause         (Flag110)
5728   --    Is_Concurrent_Record_Type           (Flag20)
5729   --    Is_Constrained                      (Flag12)
5730   --    Is_Controlled                       (Flag42)   (base type only)
5731   --    Is_Interface                        (Flag186)
5732   --    Is_Limited_Interface                (Flag197)
5733   --    OK_To_Reorder_Components            (Flag239)  (base type only)
5734   --    Reverse_Bit_Order                   (Flag164)  (base type only)
5735   --    Reverse_Storage_Order               (Flag93)   (base type only)
5736   --    First_Component                     (synth)
5737   --    First_Component_Or_Discriminant     (synth)
5738   --    (plus type attributes)
5739
5740   --  E_Return_Statement
5741   --    Return_Applies_To                   (Node8)
5742
5743   --  E_Signed_Integer_Type
5744   --  E_Signed_Integer_Subtype
5745   --    Default_Aspect_Value                (Node19)
5746   --    Scalar_Range                        (Node20)
5747   --    Static_Predicate                    (List25)
5748   --    Has_Biased_Representation           (Flag139)
5749   --    Type_Low_Bound                      (synth)
5750   --    Type_High_Bound                     (synth)
5751   --    (plus type attributes)
5752
5753   --  E_String_Type
5754   --  E_String_Subtype
5755   --    First_Index                         (Node17)
5756   --    Component_Type                      (Node20)   (base type only)
5757   --    Is_Constrained                      (Flag12)
5758   --    Next_Index                          (synth)
5759   --    Number_Dimensions                   (synth)
5760   --    (plus type attributes)
5761
5762   --  E_String_Literal_Subtype
5763   --    String_Literal_Low_Bound            (Node15)
5764   --    String_Literal_Length               (Uint16)
5765   --    First_Index                         (Node17)   (always Empty)
5766   --    Packed_Array_Type                   (Node23)
5767   --    (plus type attributes)
5768
5769   --  E_Subprogram_Body
5770   --    Mechanism                           (Uint8)
5771   --    First_Entity                        (Node17)
5772   --    Corresponding_Protected_Entry       (Node18)
5773   --    Last_Entity                         (Node20)
5774   --    Scope_Depth_Value                   (Uint22)
5775   --    Extra_Formals                       (Node28)
5776   --    Scope_Depth                         (synth)
5777
5778   --  E_Subprogram_Type
5779   --    Extra_Accessibility_Of_Result       (Node19)
5780   --    Directly_Designated_Type            (Node20)
5781   --    Extra_Formals                       (Node28)
5782   --    First_Formal                        (synth)
5783   --    First_Formal_With_Extras            (synth)
5784   --    Last_Formal                         (synth)
5785   --    Number_Formals                      (synth)
5786   --    (plus type attributes)
5787
5788   --  E_Task_Body
5789   --    (any others??? First/Last Entity, Scope_Depth???)
5790
5791   --  E_Task_Type
5792   --  E_Task_Subtype
5793   --    Direct_Primitive_Operations         (Elist10)
5794   --    Storage_Size_Variable               (Node15)   (base type only)
5795   --    First_Private_Entity                (Node16)
5796   --    First_Entity                        (Node17)
5797   --    Corresponding_Record_Type           (Node18)
5798   --    Last_Entity                         (Node20)
5799   --    Discriminant_Constraint             (Elist21)
5800   --    Scope_Depth_Value                   (Uint22)
5801   --    Scope_Depth                         (synth)
5802   --    Stored_Constraint                   (Elist23)
5803   --    Task_Body_Procedure                 (Node25)
5804   --    Delay_Cleanups                      (Flag114)
5805   --    Has_Master_Entity                   (Flag21)
5806   --    Has_Storage_Size_Clause             (Flag23)   (base type only)
5807   --    Uses_Sec_Stack                      (Flag95)   ???
5808   --    Sec_Stack_Needed_For_Return         (Flag167)  ???
5809   --    Has_Entries                         (synth)
5810   --    Number_Entries                      (synth)
5811   --    Relative_Deadline_Variable          (Node26)   (base type only)
5812   --    (plus type attributes)
5813
5814   --  E_Variable
5815   --    Hiding_Loop_Variable                (Node8)
5816   --    Current_Value                       (Node9)
5817   --    Esize                               (Uint12)
5818   --    Extra_Accessibility                 (Node13)
5819   --    Alignment                           (Uint14)
5820   --    Status_Flag_Or_Transient_Decl       (Node15)   (transient object only)
5821   --    Unset_Reference                     (Node16)
5822   --    Actual_Subtype                      (Node17)
5823   --    Renamed_Object                      (Node18)
5824   --    Size_Check_Code                     (Node19)
5825   --    Prival_Link                         (Node20)
5826   --    Interface_Name                      (Node21)
5827   --    Shared_Var_Procs_Instance           (Node22)
5828   --    Extra_Constrained                   (Node23)
5829   --    Related_Expression                  (Node24)
5830   --    Debug_Renaming_Link                 (Node25)
5831   --    Last_Assignment                     (Node26)
5832   --    Related_Type                        (Node27)
5833   --    Initialization_Statements           (Node28)
5834   --    Has_Alignment_Clause                (Flag46)
5835   --    Has_Atomic_Components               (Flag86)
5836   --    Has_Biased_Representation           (Flag139)
5837   --    Has_Independent_Components          (Flag34)   (base type only)
5838   --    Has_Initial_Value                   (Flag219)
5839   --    Has_Size_Clause                     (Flag29)
5840   --    Has_Up_Level_Access                 (Flag215)
5841   --    Has_Volatile_Components             (Flag87)
5842   --    Is_Atomic                           (Flag85)
5843   --    Is_Eliminated                       (Flag124)
5844   --    Is_Processed_Transient              (Flag252)
5845   --    Is_Safe_To_Reevaluate               (Flag249)
5846   --    Is_Shared_Passive                   (Flag60)
5847   --    Is_True_Constant                    (Flag163)
5848   --    Is_Volatile                         (Flag16)
5849   --    Is_Return_Object                    (Flag209)
5850   --    OK_To_Rename                        (Flag247)
5851   --    Optimize_Alignment_Space            (Flag241)
5852   --    Optimize_Alignment_Time             (Flag242)
5853   --    Treat_As_Volatile                   (Flag41)
5854   --    Address_Clause                      (synth)
5855   --    Alignment_Clause                    (synth)
5856   --    Size_Clause                         (synth)
5857
5858   --  E_Void
5859   --    Since E_Void is the initial Ekind value of an entity when it is first
5860   --    created, one might expect that no attributes would be defined on such
5861   --    an entity until its Ekind field is set. However, in practice, there
5862   --    are many instances in which fields of an E_Void entity are set in the
5863   --    code prior to setting the Ekind field. This is not well documented or
5864   --    well controlled, and needs cleaning up later. Meanwhile, the access
5865   --    procedures in the body of Einfo permit many, but not all, attributes
5866   --    to be applied to an E_Void entity, precisely so that this kind of
5867   --    pre-setting of attributes works. This is really a hole in the dynamic
5868   --    type checking, since there is no assurance that the eventual Ekind
5869   --    value will be appropriate for the attributes set, and the consequence
5870   --    is that the dynamic type checking in the Einfo body is unnecessarily
5871   --    weak. To be looked at systematically some time ???
5872
5873   ---------------------------------
5874   -- Component_Alignment Control --
5875   ---------------------------------
5876
5877   --  There are four types of alignment possible for array and record
5878   --  types, and a field in the type entities contains a value of the
5879   --  following type indicating which alignment choice applies. For full
5880   --  details of the meaning of these alignment types, see description
5881   --  of the Component_Alignment pragma
5882
5883   type Component_Alignment_Kind is (
5884      Calign_Default,          -- default alignment
5885      Calign_Component_Size,   -- natural alignment for component size
5886      Calign_Component_Size_4, -- natural for size <= 4, 4 for size >= 4
5887      Calign_Storage_Unit);    -- all components byte aligned
5888
5889   -----------------------------------
5890   -- Floating Point Representation --
5891   -----------------------------------
5892
5893   type Float_Rep_Kind is (
5894      IEEE_Binary,  -- IEEE 754p conform binary format
5895      VAX_Native,   -- VAX D, F, G or H format
5896      AAMP);        -- AAMP format
5897
5898   ---------------
5899   -- Iterators --
5900   ---------------
5901
5902   --  In addition to attributes that are stored as plain data, other
5903   --  attributes are procedural, and require some small amount of
5904   --  computation. Of course, from the point of view of a user of this
5905   --  package, the distinction is not visible (even the field information
5906   --  provided below should be disregarded, as it is subject to  change
5907   --  without notice!). A number of  attributes appear as lists: lists of
5908   --  formals,  lists of actuals, of discriminants, etc. For these, pairs
5909   --  of functions are defined, which take the form:
5910
5911   --      function First_Thing (E : Enclosing_Construct) return Thing;
5912   --      function Next_Thing (T : Thing) return Thing;
5913
5914   --  The end of iteration is always signaled by a value of Empty, so that
5915   --  loops over these chains invariably have the form:
5916
5917   --      This : Thing;
5918   --      ...
5919   --      This := First_Thing (E);
5920
5921   --      while Present (This) loop
5922   --         Do_Something_With (This);
5923   --        ...
5924   --        This := Next_Thing (This);
5925   --      end loop;
5926
5927   -----------------------------------
5928   -- Handling of Check Suppression --
5929   -----------------------------------
5930
5931   --  There are three ways that checks can be suppressed:
5932
5933   --    1.  At the command line level
5934   --    2.  At the scope level.
5935   --    3.  At the entity level.
5936
5937   --  See spec of Sem in sem.ads for details of the data structures used
5938   --  to keep track of these various methods for suppressing checks.
5939
5940   -------------------------------
5941   -- Handling of Discriminants --
5942   -------------------------------
5943
5944   --  During semantic processing, discriminants are separate entities which
5945   --  reflect the semantic properties and allowed usage of discriminants in
5946   --  the language.
5947
5948   --  In the case of discriminants used as bounds, the references are handled
5949   --  directly, since special processing is needed in any case. However, there
5950   --  are two circumstances in which discriminants are referenced in a quite
5951   --  general manner, like any other variables:
5952
5953   --     In initialization expressions for records. Note that the expressions
5954   --     used in Priority, Storage_Size, Task_Info and Relative_Deadline
5955   --     pragmas are effectively in this category, since these pragmas are
5956   --     converted to initialized record fields in the Corresponding_Record_
5957   --     Type.
5958
5959   --     In task and protected bodies, where the discriminant values may be
5960   --     referenced freely within these bodies. Discriminants can also appear
5961   --     in bounds of entry families and in defaults of operations.
5962
5963   --  In both these cases, the discriminants must be treated essentially as
5964   --  objects. The following approach is used to simplify and minimize the
5965   --  special processing that is required.
5966
5967   --  When a record type with discriminants is analyzed, semantic processing
5968   --  creates the entities for the discriminants. It also creates additional
5969   --  sets of entities called discriminals, one for each of the discriminants,
5970   --  and the Discriminal field of the discriminant entity points to this
5971   --  additional entity, which is initially created as an uninitialized
5972   --  (E_Void) entity.
5973
5974   --  During expansion of expressions, any discriminant reference is replaced
5975   --  by a reference to the corresponding discriminal. When the initialization
5976   --  procedure for the record is created (there will always be one, since
5977   --  discriminants are present, see Exp_Ch3 for further details), the
5978   --  discriminals are used as the entities for the formal parameters of
5979   --  this initialization procedure. The references to these discriminants
5980   --  have already been replaced by references to these discriminals, which
5981   --  are now the formal parameters corresponding to the required objects.
5982
5983   --  In the case of a task or protected body, the semantics similarly creates
5984   --  a set of discriminals for the discriminants of the task or protected
5985   --  type. When the procedure is created for the task body, the parameter
5986   --  passed in is a reference to the task value type, which contains the
5987   --  required discriminant values. The expander creates a set of declarations
5988   --  of the form:
5989
5990   --      discr_nameD : constant discr_type renames _task.discr_name;
5991
5992   --  where discr_nameD is the discriminal entity referenced by the task
5993   --  discriminant, and _task is the task value passed in as the parameter.
5994   --  Again, any references to discriminants in the task body have been
5995   --  replaced by the discriminal reference, which is now an object that
5996   --  contains the required value.
5997
5998   --  This approach for tasks means that two sets of discriminals are needed
5999   --  for a task type, one for the initialization procedure, and one for the
6000   --  task body. This works out nicely, since the semantics allocates one set
6001   --  for the task itself, and one set for the corresponding record.
6002
6003   --  The one bit of trickiness arises in making sure that the right set of
6004   --  discriminals is used at the right time. First the task definition is
6005   --  processed. Any references to discriminants here are replaced by the
6006   --  corresponding *task* discriminals (the record type doesn't even exist
6007   --  yet, since it is constructed as part of the expansion of the task
6008   --  declaration, which happens after the semantic processing of the task
6009   --  definition). The discriminants to be used for the corresponding record
6010   --  are created at the same time as the other discriminals, and held in the
6011   --  CR_Discriminant field of the discriminant. A use of the discriminant in
6012   --  a bound for an entry family is replaced with the CR_Discriminant because
6013   --  it controls the bound of the entry queue array which is a component of
6014   --  the corresponding record.
6015
6016   --  Just before the record initialization routine is constructed, the
6017   --  expander exchanges the task and record discriminals. This has two
6018   --  effects. First the generation of the record initialization routine
6019   --  uses the discriminals that are now on the record, which is the set
6020   --  that used to be on the task, which is what we want.
6021
6022   --  Second, a new set of (so far unused) discriminals is now on the task
6023   --  discriminants, and it is this set that will be used for expanding the
6024   --  task body, and also for the discriminal declarations at the start of
6025   --  the task body.
6026
6027   ---------------------------------------------------
6028   -- Handling of private data in protected objects --
6029   ---------------------------------------------------
6030
6031   --  Private components in protected types pose problems similar to those
6032   --  of discriminants. Private data is visible and can be directly referenced
6033   --  from protected bodies. However, when protected entries and subprograms
6034   --  are expanded into corresponding bodies and barrier functions, private
6035   --  components lose their original context and visibility.
6036
6037   --  To remedy this side effect of expansion, private components are expanded
6038   --  into renamings called "privals", by analogy with "discriminals".
6039
6040   --     private_comp : comp_type renames _object.private_comp;
6041
6042   --  Prival declarations are inserted during the analysis of subprogram and
6043   --  entry bodies to ensure proper visibility for any subsequent expansion.
6044   --  _Object is the formal parameter of the generated corresponding body or
6045   --  a local renaming which denotes the protected object obtained from entry
6046   --  parameter _O. Privals receive minimal decoration upon creation and are
6047   --  categorized as either E_Variable for the general case or E_Constant when
6048   --  they appear in functions.
6049
6050   --  Along with the local declarations, each private component carries a
6051   --  placeholder which references the prival entity in the current body. This
6052   --  form of indirection is used to resolve name clashes of privals and other
6053   --  locally visible entities such as parameters, local objects, entry family
6054   --  indexes or identifiers used in the barrier condition.
6055
6056   --  When analyzing the statements of a protected subprogram or entry, any
6057   --  reference to a private component must resolve to the locally declared
6058   --  prival through normal visibility. In case of name conflicts (the cases
6059   --  above), the prival is marked as hidden and acts as a weakly declared
6060   --  entity. As a result, the reference points to the correct entity. When a
6061   --  private component is denoted by an expanded name (prot_type.comp for
6062   --  example), the expansion mechanism uses the placeholder of the component
6063   --  to correct the Entity and Etype of the reference.
6064
6065   -------------------
6066   -- Type Synonyms --
6067   -------------------
6068
6069   --  The following type synonyms are used to tidy up the function and
6070   --  procedure declarations that follow, and also to make it possible to meet
6071   --  the requirement for the XEINFO utility that all function specs must fit
6072   --  on a single source line.
6073
6074   subtype B is Boolean;
6075   subtype C is Component_Alignment_Kind;
6076   subtype E is Entity_Id;
6077   subtype F is Float_Rep_Kind;
6078   subtype M is Mechanism_Type;
6079   subtype N is Node_Id;
6080   subtype U is Uint;
6081   subtype R is Ureal;
6082   subtype L is Elist_Id;
6083   subtype S is List_Id;
6084
6085   --------------------------------
6086   -- Attribute Access Functions --
6087   --------------------------------
6088
6089   --  All attributes are manipulated through a procedural interface. This
6090   --  section contains the functions used to obtain attribute values which
6091   --  correspond to values in fields or flags in the entity itself.
6092
6093   function Abstract_States                     (Id : E) return L;
6094   function Accept_Address                      (Id : E) return L;
6095   function Access_Disp_Table                   (Id : E) return L;
6096   function Actual_Subtype                      (Id : E) return E;
6097   function Address_Taken                       (Id : E) return B;
6098   function Alias                               (Id : E) return E;
6099   function Alignment                           (Id : E) return U;
6100   function Associated_Formal_Package           (Id : E) return E;
6101   function Associated_Node_For_Itype           (Id : E) return N;
6102   function Associated_Storage_Pool             (Id : E) return E;
6103   function Barrier_Function                    (Id : E) return N;
6104   function Block_Node                          (Id : E) return N;
6105   function Body_Entity                         (Id : E) return E;
6106   function Body_Needed_For_SAL                 (Id : E) return B;
6107   function CR_Discriminant                     (Id : E) return E;
6108   function C_Pass_By_Copy                      (Id : E) return B;
6109   function Can_Never_Be_Null                   (Id : E) return B;
6110   function Can_Use_Internal_Rep                (Id : E) return B;
6111   function Checks_May_Be_Suppressed            (Id : E) return B;
6112   function Class_Wide_Type                     (Id : E) return E;
6113   function Cloned_Subtype                      (Id : E) return E;
6114   function Component_Alignment                 (Id : E) return C;
6115   function Component_Bit_Offset                (Id : E) return U;
6116   function Component_Clause                    (Id : E) return N;
6117   function Component_Size                      (Id : E) return U;
6118   function Component_Type                      (Id : E) return E;
6119   function Contract                            (Id : E) return N;
6120   function Corresponding_Concurrent_Type       (Id : E) return E;
6121   function Corresponding_Discriminant          (Id : E) return E;
6122   function Corresponding_Equality              (Id : E) return E;
6123   function Corresponding_Protected_Entry       (Id : E) return E;
6124   function Corresponding_Record_Type           (Id : E) return E;
6125   function Corresponding_Remote_Type           (Id : E) return E;
6126   function Current_Use_Clause                  (Id : E) return E;
6127   function Current_Value                       (Id : E) return N;
6128   function DTC_Entity                          (Id : E) return E;
6129   function DT_Entry_Count                      (Id : E) return U;
6130   function DT_Offset_To_Top_Func               (Id : E) return E;
6131   function DT_Position                         (Id : E) return U;
6132   function Debug_Info_Off                      (Id : E) return B;
6133   function Debug_Renaming_Link                 (Id : E) return E;
6134   function Default_Aspect_Component_Value      (Id : E) return N;
6135   function Default_Aspect_Value                (Id : E) return N;
6136   function Default_Expr_Function               (Id : E) return E;
6137   function Default_Expressions_Processed       (Id : E) return B;
6138   function Default_Value                       (Id : E) return N;
6139   function Delay_Cleanups                      (Id : E) return B;
6140   function Delay_Subprogram_Descriptors        (Id : E) return B;
6141   function Delta_Value                         (Id : E) return R;
6142   function Dependent_Instances                 (Id : E) return L;
6143   function Depends_On_Private                  (Id : E) return B;
6144   function Digits_Value                        (Id : E) return U;
6145   function Direct_Primitive_Operations         (Id : E) return L;
6146   function Directly_Designated_Type            (Id : E) return E;
6147   function Discard_Names                       (Id : E) return B;
6148   function Discriminal                         (Id : E) return E;
6149   function Discriminal_Link                    (Id : E) return E;
6150   function Discriminant_Checking_Func          (Id : E) return E;
6151   function Discriminant_Constraint             (Id : E) return L;
6152   function Discriminant_Default_Value          (Id : E) return N;
6153   function Discriminant_Number                 (Id : E) return U;
6154   function Dispatch_Table_Wrappers             (Id : E) return L;
6155   function Elaborate_Body_Desirable            (Id : E) return B;
6156   function Elaboration_Entity                  (Id : E) return E;
6157   function Elaboration_Entity_Required         (Id : E) return B;
6158   function Enclosing_Scope                     (Id : E) return E;
6159   function Entry_Accepted                      (Id : E) return B;
6160   function Entry_Bodies_Array                  (Id : E) return E;
6161   function Entry_Cancel_Parameter              (Id : E) return E;
6162   function Entry_Component                     (Id : E) return E;
6163   function Entry_Formal                        (Id : E) return E;
6164   function Entry_Index_Constant                (Id : E) return E;
6165   function Entry_Index_Type                    (Id : E) return E;
6166   function Entry_Parameters_Type               (Id : E) return E;
6167   function Enum_Pos_To_Rep                     (Id : E) return E;
6168   function Enumeration_Pos                     (Id : E) return U;
6169   function Enumeration_Rep                     (Id : E) return U;
6170   function Enumeration_Rep_Expr                (Id : E) return N;
6171   function Equivalent_Type                     (Id : E) return E;
6172   function Esize                               (Id : E) return U;
6173   function Exception_Code                      (Id : E) return U;
6174   function Extra_Accessibility                 (Id : E) return E;
6175   function Extra_Accessibility_Of_Result       (Id : E) return E;
6176   function Extra_Constrained                   (Id : E) return E;
6177   function Extra_Formal                        (Id : E) return E;
6178   function Extra_Formals                       (Id : E) return E;
6179   function Finalization_Master                 (Id : E) return E;
6180   function Finalize_Storage_Only               (Id : E) return B;
6181   function Finalizer                           (Id : E) return E;
6182   function First_Entity                        (Id : E) return E;
6183   function First_Exit_Statement                (Id : E) return N;
6184   function First_Index                         (Id : E) return N;
6185   function First_Literal                       (Id : E) return E;
6186   function First_Optional_Parameter            (Id : E) return E;
6187   function First_Private_Entity                (Id : E) return E;
6188   function First_Rep_Item                      (Id : E) return N;
6189   function Float_Rep                           (Id : E) return F;
6190   function Freeze_Node                         (Id : E) return N;
6191   function From_With_Type                      (Id : E) return B;
6192   function Full_View                           (Id : E) return E;
6193   function Generic_Homonym                     (Id : E) return E;
6194   function Generic_Renamings                   (Id : E) return L;
6195   function Handler_Records                     (Id : E) return S;
6196   function Has_Aliased_Components              (Id : E) return B;
6197   function Has_Alignment_Clause                (Id : E) return B;
6198   function Has_All_Calls_Remote                (Id : E) return B;
6199   function Has_Anonymous_Master                (Id : E) return B;
6200   function Has_Atomic_Components               (Id : E) return B;
6201   function Has_Biased_Representation           (Id : E) return B;
6202   function Has_Completion                      (Id : E) return B;
6203   function Has_Completion_In_Body              (Id : E) return B;
6204   function Has_Complex_Representation          (Id : E) return B;
6205   function Has_Component_Size_Clause           (Id : E) return B;
6206   function Has_Constrained_Partial_View        (Id : E) return B;
6207   function Has_Contiguous_Rep                  (Id : E) return B;
6208   function Has_Controlled_Component            (Id : E) return B;
6209   function Has_Controlling_Result              (Id : E) return B;
6210   function Has_Convention_Pragma               (Id : E) return B;
6211   function Has_Default_Aspect                  (Id : E) return B;
6212   function Has_Delayed_Aspects                 (Id : E) return B;
6213   function Has_Delayed_Freeze                  (Id : E) return B;
6214   function Has_Discriminants                   (Id : E) return B;
6215   function Has_Dispatch_Table                  (Id : E) return B;
6216   function Has_Enumeration_Rep_Clause          (Id : E) return B;
6217   function Has_Exit                            (Id : E) return B;
6218   function Has_External_Tag_Rep_Clause         (Id : E) return B;
6219   function Has_Forward_Instantiation           (Id : E) return B;
6220   function Has_Fully_Qualified_Name            (Id : E) return B;
6221   function Has_Gigi_Rep_Item                   (Id : E) return B;
6222   function Has_Homonym                         (Id : E) return B;
6223   function Has_Implicit_Dereference            (Id : E) return B;
6224   function Has_Independent_Components          (Id : E) return B;
6225   function Has_Inheritable_Invariants          (Id : E) return B;
6226   function Has_Initial_Value                   (Id : E) return B;
6227   function Has_Interrupt_Handler               (Id : E) return B;
6228   function Has_Invariants                      (Id : E) return B;
6229   function Has_Machine_Radix_Clause            (Id : E) return B;
6230   function Has_Master_Entity                   (Id : E) return B;
6231   function Has_Missing_Return                  (Id : E) return B;
6232   function Has_Nested_Block_With_Handler       (Id : E) return B;
6233   function Has_Non_Standard_Rep                (Id : E) return B;
6234   function Has_Object_Size_Clause              (Id : E) return B;
6235   function Has_Per_Object_Constraint           (Id : E) return B;
6236   function Has_Postconditions                  (Id : E) return B;
6237   function Has_Pragma_Controlled               (Id : E) return B;
6238   function Has_Pragma_Elaborate_Body           (Id : E) return B;
6239   function Has_Pragma_Inline                   (Id : E) return B;
6240   function Has_Pragma_Inline_Always            (Id : E) return B;
6241   function Has_Pragma_No_Inline                (Id : E) return B;
6242   function Has_Pragma_Ordered                  (Id : E) return B;
6243   function Has_Pragma_Pack                     (Id : E) return B;
6244   function Has_Pragma_Preelab_Init             (Id : E) return B;
6245   function Has_Pragma_Pure                     (Id : E) return B;
6246   function Has_Pragma_Pure_Function            (Id : E) return B;
6247   function Has_Pragma_Thread_Local_Storage     (Id : E) return B;
6248   function Has_Pragma_Unmodified               (Id : E) return B;
6249   function Has_Pragma_Unreferenced             (Id : E) return B;
6250   function Has_Pragma_Unreferenced_Objects     (Id : E) return B;
6251   function Has_Predicates                      (Id : E) return B;
6252   function Has_Primitive_Operations            (Id : E) return B;
6253   function Has_Private_Ancestor                (Id : E) return B;
6254   function Has_Qualified_Name                  (Id : E) return B;
6255   function Has_RACW                            (Id : E) return B;
6256   function Has_Record_Rep_Clause               (Id : E) return B;
6257   function Has_Recursive_Call                  (Id : E) return B;
6258   function Has_Size_Clause                     (Id : E) return B;
6259   function Has_Small_Clause                    (Id : E) return B;
6260   function Has_Specified_Layout                (Id : E) return B;
6261   function Has_Specified_Stream_Input          (Id : E) return B;
6262   function Has_Specified_Stream_Output         (Id : E) return B;
6263   function Has_Specified_Stream_Read           (Id : E) return B;
6264   function Has_Specified_Stream_Write          (Id : E) return B;
6265   function Has_Static_Discriminants            (Id : E) return B;
6266   function Has_Storage_Size_Clause             (Id : E) return B;
6267   function Has_Stream_Size_Clause              (Id : E) return B;
6268   function Has_Task                            (Id : E) return B;
6269   function Has_Thunks                          (Id : E) return B;
6270   function Has_Unchecked_Union                 (Id : E) return B;
6271   function Has_Unknown_Discriminants           (Id : E) return B;
6272   function Has_Up_Level_Access                 (Id : E) return B;
6273   function Has_Volatile_Components             (Id : E) return B;
6274   function Has_Xref_Entry                      (Id : E) return B;
6275   function Hiding_Loop_Variable                (Id : E) return E;
6276   function Homonym                             (Id : E) return E;
6277   function In_Package_Body                     (Id : E) return B;
6278   function In_Private_Part                     (Id : E) return B;
6279   function In_Use                              (Id : E) return B;
6280   function Initialization_Statements           (Id : E) return N;
6281   function Integrity_Level                     (Id : E) return U;
6282   function Inner_Instances                     (Id : E) return L;
6283   function Interface_Alias                     (Id : E) return E;
6284   function Interface_Name                      (Id : E) return N;
6285   function Interfaces                          (Id : E) return L;
6286   function Is_AST_Entry                        (Id : E) return B;
6287   function Is_Abstract_Subprogram              (Id : E) return B;
6288   function Is_Abstract_Type                    (Id : E) return B;
6289   function Is_Access_Constant                  (Id : E) return B;
6290   function Is_Ada_2005_Only                    (Id : E) return B;
6291   function Is_Ada_2012_Only                    (Id : E) return B;
6292   function Is_Aliased                          (Id : E) return B;
6293   function Is_Asynchronous                     (Id : E) return B;
6294   function Is_Atomic                           (Id : E) return B;
6295   function Is_Bit_Packed_Array                 (Id : E) return B;
6296   function Is_CPP_Class                        (Id : E) return B;
6297   function Is_Called                           (Id : E) return B;
6298   function Is_Character_Type                   (Id : E) return B;
6299   function Is_Child_Unit                       (Id : E) return B;
6300   function Is_Class_Wide_Equivalent_Type       (Id : E) return B;
6301   function Is_Compilation_Unit                 (Id : E) return B;
6302   function Is_Completely_Hidden                (Id : E) return B;
6303   function Is_Constr_Subt_For_UN_Aliased       (Id : E) return B;
6304   function Is_Constr_Subt_For_U_Nominal        (Id : E) return B;
6305   function Is_Constrained                      (Id : E) return B;
6306   function Is_Constructor                      (Id : E) return B;
6307   function Is_Controlled                       (Id : E) return B;
6308   function Is_Controlling_Formal               (Id : E) return B;
6309   function Is_Discrim_SO_Function              (Id : E) return B;
6310   function Is_Dispatch_Table_Entity            (Id : E) return B;
6311   function Is_Dispatching_Operation            (Id : E) return B;
6312   function Is_Eliminated                       (Id : E) return B;
6313   function Is_Entry_Formal                     (Id : E) return B;
6314   function Is_Exported                         (Id : E) return B;
6315   function Is_First_Subtype                    (Id : E) return B;
6316   function Is_For_Access_Subtype               (Id : E) return B;
6317   function Is_Frozen                           (Id : E) return B;
6318   function Is_Generic_Instance                 (Id : E) return B;
6319   function Is_Hidden                           (Id : E) return B;
6320   function Is_Hidden_Open_Scope                (Id : E) return B;
6321   function Is_Immediately_Visible              (Id : E) return B;
6322   function Is_Implementation_Defined           (Id : E) return B;
6323   function Is_Imported                         (Id : E) return B;
6324   function Is_Inlined                          (Id : E) return B;
6325   function Is_Instantiated                     (Id : E) return B;
6326   function Is_Interface                        (Id : E) return B;
6327   function Is_Internal                         (Id : E) return B;
6328   function Is_Interrupt_Handler                (Id : E) return B;
6329   function Is_Intrinsic_Subprogram             (Id : E) return B;
6330   function Is_Itype                            (Id : E) return B;
6331   function Is_Known_Non_Null                   (Id : E) return B;
6332   function Is_Known_Null                       (Id : E) return B;
6333   function Is_Known_Valid                      (Id : E) return B;
6334   function Is_Limited_Composite                (Id : E) return B;
6335   function Is_Limited_Interface                (Id : E) return B;
6336   function Is_Local_Anonymous_Access           (Id : E) return B;
6337   function Is_Machine_Code_Subprogram          (Id : E) return B;
6338   function Is_Non_Static_Subtype               (Id : E) return B;
6339   function Is_Null_Init_Proc                   (Id : E) return B;
6340   function Is_Obsolescent                      (Id : E) return B;
6341   function Is_Only_Out_Parameter               (Id : E) return B;
6342   function Is_Optional_Parameter               (Id : E) return B;
6343   function Is_Package_Body_Entity              (Id : E) return B;
6344   function Is_Packed                           (Id : E) return B;
6345   function Is_Packed_Array_Type                (Id : E) return B;
6346   function Is_Potentially_Use_Visible          (Id : E) return B;
6347   function Is_Preelaborated                    (Id : E) return B;
6348   function Is_Primitive                        (Id : E) return B;
6349   function Is_Primitive_Wrapper                (Id : E) return B;
6350   function Is_Private_Composite                (Id : E) return B;
6351   function Is_Private_Descendant               (Id : E) return B;
6352   function Is_Private_Primitive                (Id : E) return B;
6353   function Is_Processed_Transient              (Id : E) return B;
6354   function Is_Public                           (Id : E) return B;
6355   function Is_Pure                             (Id : E) return B;
6356   function Is_Pure_Unit_Access_Type            (Id : E) return B;
6357   function Is_RACW_Stub_Type                   (Id : E) return B;
6358   function Is_Raised                           (Id : E) return B;
6359   function Is_Remote_Call_Interface            (Id : E) return B;
6360   function Is_Remote_Types                     (Id : E) return B;
6361   function Is_Renaming_Of_Object               (Id : E) return B;
6362   function Is_Return_Object                    (Id : E) return B;
6363   function Is_Safe_To_Reevaluate               (Id : E) return B;
6364   function Is_Shared_Passive                   (Id : E) return B;
6365   function Is_Statically_Allocated             (Id : E) return B;
6366   function Is_Tag                              (Id : E) return B;
6367   function Is_Tagged_Type                      (Id : E) return B;
6368   function Is_Thunk                            (Id : E) return B;
6369   function Is_Trivial_Subprogram               (Id : E) return B;
6370   function Is_True_Constant                    (Id : E) return B;
6371   function Is_Unchecked_Union                  (Id : E) return B;
6372   function Is_Underlying_Record_View           (Id : E) return B;
6373   function Is_Unsigned_Type                    (Id : E) return B;
6374   function Is_VMS_Exception                    (Id : E) return B;
6375   function Is_Valued_Procedure                 (Id : E) return B;
6376   function Is_Visible_Formal                   (Id : E) return B;
6377   function Is_Visible_Lib_Unit                 (Id : E) return B;
6378   function Is_Volatile                         (Id : E) return B;
6379   function Itype_Printed                       (Id : E) return B;
6380   function Kill_Elaboration_Checks             (Id : E) return B;
6381   function Kill_Range_Checks                   (Id : E) return B;
6382   function Known_To_Have_Preelab_Init          (Id : E) return B;
6383   function Last_Assignment                     (Id : E) return N;
6384   function Last_Entity                         (Id : E) return E;
6385   function Limited_View                        (Id : E) return E;
6386   function Lit_Indexes                         (Id : E) return E;
6387   function Lit_Strings                         (Id : E) return E;
6388   function Loop_Entry_Attributes               (Id : E) return L;
6389   function Low_Bound_Tested                    (Id : E) return B;
6390   function Machine_Radix_10                    (Id : E) return B;
6391   function Master_Id                           (Id : E) return E;
6392   function Materialize_Entity                  (Id : E) return B;
6393   function Mechanism                           (Id : E) return M;
6394   function Modulus                             (Id : E) return U;
6395   function Must_Be_On_Byte_Boundary            (Id : E) return B;
6396   function Must_Have_Preelab_Init              (Id : E) return B;
6397   function Needs_Debug_Info                    (Id : E) return B;
6398   function Needs_No_Actuals                    (Id : E) return B;
6399   function Never_Set_In_Source                 (Id : E) return B;
6400   function Next_Inlined_Subprogram             (Id : E) return E;
6401   function No_Pool_Assigned                    (Id : E) return B;
6402   function No_Return                           (Id : E) return B;
6403   function No_Strict_Aliasing                  (Id : E) return B;
6404   function Non_Binary_Modulus                  (Id : E) return B;
6405   function Non_Limited_View                    (Id : E) return E;
6406   function Nonzero_Is_True                     (Id : E) return B;
6407   function Normalized_First_Bit                (Id : E) return U;
6408   function Normalized_Position                 (Id : E) return U;
6409   function Normalized_Position_Max             (Id : E) return U;
6410   function OK_To_Rename                        (Id : E) return B;
6411   function OK_To_Reorder_Components            (Id : E) return B;
6412   function Optimize_Alignment_Space            (Id : E) return B;
6413   function Optimize_Alignment_Time             (Id : E) return B;
6414   function Original_Access_Type                (Id : E) return E;
6415   function Original_Array_Type                 (Id : E) return E;
6416   function Original_Record_Component           (Id : E) return E;
6417   function Overlays_Constant                   (Id : E) return B;
6418   function Overridden_Operation                (Id : E) return E;
6419   function PPC_Wrapper                         (Id : E) return E;
6420   function Package_Instantiation               (Id : E) return N;
6421   function Packed_Array_Type                   (Id : E) return E;
6422   function Parent_Subtype                      (Id : E) return E;
6423   function Postcondition_Proc                  (Id : E) return E;
6424   function Prival                              (Id : E) return E;
6425   function Prival_Link                         (Id : E) return E;
6426   function Private_Dependents                  (Id : E) return L;
6427   function Private_View                        (Id : E) return N;
6428   function Protected_Body_Subprogram           (Id : E) return E;
6429   function Protected_Formal                    (Id : E) return E;
6430   function Protection_Object                   (Id : E) return E;
6431   function RM_Size                             (Id : E) return U;
6432   function Reachable                           (Id : E) return B;
6433   function Referenced                          (Id : E) return B;
6434   function Referenced_As_LHS                   (Id : E) return B;
6435   function Referenced_As_Out_Parameter         (Id : E) return B;
6436   function Refined_State                       (Id : E) return E;
6437   function Register_Exception_Call             (Id : E) return N;
6438   function Related_Array_Object                (Id : E) return E;
6439   function Related_Expression                  (Id : E) return N;
6440   function Related_Instance                    (Id : E) return E;
6441   function Related_Type                        (Id : E) return E;
6442   function Relative_Deadline_Variable          (Id : E) return E;
6443   function Renamed_Entity                      (Id : E) return N;
6444   function Renamed_In_Spec                     (Id : E) return B;
6445   function Renamed_Object                      (Id : E) return N;
6446   function Renaming_Map                        (Id : E) return U;
6447   function Requires_Overriding                 (Id : E) return B;
6448   function Return_Applies_To                   (Id : E) return N;
6449   function Return_Present                      (Id : E) return B;
6450   function Returns_By_Ref                      (Id : E) return B;
6451   function Reverse_Bit_Order                   (Id : E) return B;
6452   function Reverse_Storage_Order               (Id : E) return B;
6453   function Scalar_Range                        (Id : E) return N;
6454   function Scale_Value                         (Id : E) return U;
6455   function Scope_Depth_Value                   (Id : E) return U;
6456   function Sec_Stack_Needed_For_Return         (Id : E) return B;
6457   function Shadow_Entities                     (Id : E) return S;
6458   function Shared_Var_Procs_Instance           (Id : E) return E;
6459   function Size_Check_Code                     (Id : E) return N;
6460   function Size_Depends_On_Discriminant        (Id : E) return B;
6461   function Size_Known_At_Compile_Time          (Id : E) return B;
6462   function Small_Value                         (Id : E) return R;
6463   function Spec_Entity                         (Id : E) return E;
6464   function Static_Elaboration_Desired          (Id : E) return B;
6465   function Static_Initialization               (Id : E) return N;
6466   function Static_Predicate                    (Id : E) return S;
6467   function Status_Flag_Or_Transient_Decl       (Id : E) return E;
6468   function Storage_Size_Variable               (Id : E) return E;
6469   function Stored_Constraint                   (Id : E) return L;
6470   function Strict_Alignment                    (Id : E) return B;
6471   function String_Literal_Length               (Id : E) return U;
6472   function String_Literal_Low_Bound            (Id : E) return N;
6473   function Subprograms_For_Type                (Id : E) return E;
6474   function Suppress_Elaboration_Warnings       (Id : E) return B;
6475   function Suppress_Initialization             (Id : E) return B;
6476   function Suppress_Style_Checks               (Id : E) return B;
6477   function Suppress_Value_Tracking_On_Call     (Id : E) return B;
6478   function Task_Body_Procedure                 (Id : E) return N;
6479   function Treat_As_Volatile                   (Id : E) return B;
6480   function Underlying_Full_View                (Id : E) return E;
6481   function Underlying_Record_View              (Id : E) return E;
6482   function Universal_Aliasing                  (Id : E) return B;
6483   function Unset_Reference                     (Id : E) return N;
6484   function Used_As_Generic_Actual              (Id : E) return B;
6485   function Uses_Lock_Free                      (Id : E) return B;
6486   function Uses_Sec_Stack                      (Id : E) return B;
6487   function Vax_Float                           (Id : E) return B;
6488   function Warnings_Off                        (Id : E) return B;
6489   function Warnings_Off_Used                   (Id : E) return B;
6490   function Warnings_Off_Used_Unmodified        (Id : E) return B;
6491   function Warnings_Off_Used_Unreferenced      (Id : E) return B;
6492   function Was_Hidden                          (Id : E) return B;
6493   function Wrapped_Entity                      (Id : E) return E;
6494
6495   -------------------------------
6496   -- Classification Attributes --
6497   -------------------------------
6498
6499   --  These functions provide a convenient functional notation for testing
6500   --  whether an Ekind value belongs to a specified kind, for example the
6501   --  function Is_Elementary_Type tests if its argument is in Elementary_Kind.
6502   --  In some cases, the test is of an entity attribute (e.g. in the case of
6503   --  Is_Generic_Type where the Ekind does not provide the needed information)
6504
6505   function Is_Access_Type                      (Id : E) return B;
6506   function Is_Access_Protected_Subprogram_Type (Id : E) return B;
6507   function Is_Access_Subprogram_Type           (Id : E) return B;
6508   function Is_Aggregate_Type                   (Id : E) return B;
6509   function Is_Array_Type                       (Id : E) return B;
6510   function Is_Assignable                       (Id : E) return B;
6511   function Is_Class_Wide_Type                  (Id : E) return B;
6512   function Is_Composite_Type                   (Id : E) return B;
6513   function Is_Concurrent_Body                  (Id : E) return B;
6514   function Is_Concurrent_Record_Type           (Id : E) return B;
6515   function Is_Concurrent_Type                  (Id : E) return B;
6516   function Is_Decimal_Fixed_Point_Type         (Id : E) return B;
6517   function Is_Digits_Type                      (Id : E) return B;
6518   function Is_Descendent_Of_Address            (Id : E) return B;
6519   function Is_Discrete_Or_Fixed_Point_Type     (Id : E) return B;
6520   function Is_Discrete_Type                    (Id : E) return B;
6521   function Is_Elementary_Type                  (Id : E) return B;
6522   function Is_Entry                            (Id : E) return B;
6523   function Is_Enumeration_Type                 (Id : E) return B;
6524   function Is_Fixed_Point_Type                 (Id : E) return B;
6525   function Is_Floating_Point_Type              (Id : E) return B;
6526   function Is_Formal                           (Id : E) return B;
6527   function Is_Formal_Object                    (Id : E) return B;
6528   function Is_Formal_Subprogram                (Id : E) return B;
6529   function Is_Generic_Actual_Type              (Id : E) return B;
6530   function Is_Generic_Unit                     (Id : E) return B;
6531   function Is_Generic_Type                     (Id : E) return B;
6532   function Is_Generic_Subprogram               (Id : E) return B;
6533   function Is_Incomplete_Or_Private_Type       (Id : E) return B;
6534   function Is_Incomplete_Type                  (Id : E) return B;
6535   function Is_Integer_Type                     (Id : E) return B;
6536   function Is_Limited_Record                   (Id : E) return B;
6537   function Is_Modular_Integer_Type             (Id : E) return B;
6538   function Is_Named_Number                     (Id : E) return B;
6539   function Is_Numeric_Type                     (Id : E) return B;
6540   function Is_Object                           (Id : E) return B;
6541   function Is_Ordinary_Fixed_Point_Type        (Id : E) return B;
6542   function Is_Overloadable                     (Id : E) return B;
6543   function Is_Private_Type                     (Id : E) return B;
6544   function Is_Protected_Type                   (Id : E) return B;
6545   function Is_Real_Type                        (Id : E) return B;
6546   function Is_Record_Type                      (Id : E) return B;
6547   function Is_Scalar_Type                      (Id : E) return B;
6548   function Is_Signed_Integer_Type              (Id : E) return B;
6549   function Is_Subprogram                       (Id : E) return B;
6550   function Is_Task_Type                        (Id : E) return B;
6551   function Is_Type                             (Id : E) return B;
6552
6553   -------------------------------------
6554   -- Synthesized Attribute Functions --
6555   -------------------------------------
6556
6557   --  The functions in this section synthesize attributes from the tree,
6558   --  so they do not correspond to defined fields in the entity itself.
6559
6560   function Address_Clause                      (Id : E) return N;
6561   function Aft_Value                           (Id : E) return U;
6562   function Alignment_Clause                    (Id : E) return N;
6563   function Base_Type                           (Id : E) return E;
6564   function Declaration_Node                    (Id : E) return N;
6565   function Designated_Type                     (Id : E) return E;
6566   function First_Component                     (Id : E) return E;
6567   function First_Component_Or_Discriminant     (Id : E) return E;
6568   function First_Formal                        (Id : E) return E;
6569   function First_Formal_With_Extras            (Id : E) return E;
6570   function Has_Attach_Handler                  (Id : E) return B;
6571   function Has_Entries                         (Id : E) return B;
6572   function Has_Foreign_Convention              (Id : E) return B;
6573   function Has_Private_Declaration             (Id : E) return B;
6574   function Implementation_Base_Type            (Id : E) return E;
6575   function Is_Base_Type                        (Id : E) return B;
6576   function Is_Boolean_Type                     (Id : E) return B;
6577   function Is_Constant_Object                  (Id : E) return B;
6578   function Is_Discriminal                      (Id : E) return B;
6579   function Is_Dynamic_Scope                    (Id : E) return B;
6580   function Is_Finalizer                        (Id : E) return B;
6581   function Is_Input_State                      (Id : E) return B;
6582   function Is_Null_State                       (Id : E) return B;
6583   function Is_Output_State                     (Id : E) return B;
6584   function Is_Package_Or_Generic_Package       (Id : E) return B;
6585   function Is_Prival                           (Id : E) return B;
6586   function Is_Protected_Component              (Id : E) return B;
6587   function Is_Protected_Interface              (Id : E) return B;
6588   function Is_Protected_Record_Type            (Id : E) return B;
6589   function Is_Standard_Character_Type          (Id : E) return B;
6590   function Is_String_Type                      (Id : E) return B;
6591   function Is_Synchronized_Interface           (Id : E) return B;
6592   function Is_Task_Interface                   (Id : E) return B;
6593   function Is_Task_Record_Type                 (Id : E) return B;
6594   function Is_Volatile_State                   (Id : E) return B;
6595   function Is_Wrapper_Package                  (Id : E) return B;
6596   function Last_Formal                         (Id : E) return E;
6597   function Machine_Emax_Value                  (Id : E) return U;
6598   function Machine_Emin_Value                  (Id : E) return U;
6599   function Machine_Mantissa_Value              (Id : E) return U;
6600   function Machine_Radix_Value                 (Id : E) return U;
6601   function Model_Emin_Value                    (Id : E) return U;
6602   function Model_Epsilon_Value                 (Id : E) return R;
6603   function Model_Mantissa_Value                (Id : E) return U;
6604   function Model_Small_Value                   (Id : E) return R;
6605   function Next_Component                      (Id : E) return E;
6606   function Next_Component_Or_Discriminant      (Id : E) return E;
6607   function Next_Discriminant                   (Id : E) return E;
6608   function Next_Formal                         (Id : E) return E;
6609   function Next_Formal_With_Extras             (Id : E) return E;
6610   function Next_Literal                        (Id : E) return E;
6611   function Next_Stored_Discriminant            (Id : E) return E;
6612   function Number_Dimensions                   (Id : E) return Pos;
6613   function Number_Entries                      (Id : E) return Nat;
6614   function Number_Formals                      (Id : E) return Pos;
6615   function Parameter_Mode                      (Id : E) return Formal_Kind;
6616   function Primitive_Operations                (Id : E) return L;
6617   function Root_Type                           (Id : E) return E;
6618   function Safe_Emax_Value                     (Id : E) return U;
6619   function Safe_First_Value                    (Id : E) return R;
6620   function Safe_Last_Value                     (Id : E) return R;
6621   function Scope_Depth_Set                     (Id : E) return B;
6622   function Size_Clause                         (Id : E) return N;
6623   function Stream_Size_Clause                  (Id : E) return N;
6624   function Type_High_Bound                     (Id : E) return N;
6625   function Type_Low_Bound                      (Id : E) return N;
6626   function Underlying_Type                     (Id : E) return E;
6627
6628   ----------------------------------------------
6629   -- Type Representation Attribute Predicates --
6630   ----------------------------------------------
6631
6632   --  These predicates test the setting of the indicated attribute. If the
6633   --  value has been set, then Known is True, and Unknown is False. If no
6634   --  value is set, then Known is False and Unknown is True. The Known_Static
6635   --  predicate is true only if the value is set (Known) and is set to a
6636   --  compile time known value. Note that in the case of Alignment and
6637   --  Normalized_First_Bit, dynamic values are not possible, so we do not
6638   --  need a separate Known_Static calls in these cases. The not set (unknown)
6639   --  values are as follows:
6640
6641   --    Alignment               Uint_0 or No_Uint
6642   --    Component_Size          Uint_0 or No_Uint
6643   --    Component_Bit_Offset    No_Uint
6644   --    Digits_Value            Uint_0 or No_Uint
6645   --    Esize                   Uint_0 or No_Uint
6646   --    Normalized_First_Bit    No_Uint
6647   --    Normalized_Position     No_Uint
6648   --    Normalized_Position_Max No_Uint
6649   --    RM_Size                 Uint_0 or No_Uint
6650
6651   --  It would be cleaner to use No_Uint in all these cases, but historically
6652   --  we chose to use Uint_0 at first, and the change over will take time ???
6653   --  This is particularly true for the RM_Size field, where a value of zero
6654   --  is legitimate. We deal with this by a nasty kludge that knows that the
6655   --  value is always known static for discrete types (and no other types can
6656   --  have an RM_Size value of zero).
6657
6658   --  In two cases, Known_Static_Esize and Known_Static_RM_Size, there is one
6659   --  more consideration, which is that we always return False for generic
6660   --  types. Within a template, the size can look known, because of the fake
6661   --  size values we put in template types, but they are not really known and
6662   --  anyone testing if they are known within the template should get False as
6663   --  a result to prevent incorrect assumptions.
6664
6665   function Known_Alignment                       (E : Entity_Id) return B;
6666   function Known_Component_Bit_Offset            (E : Entity_Id) return B;
6667   function Known_Component_Size                  (E : Entity_Id) return B;
6668   function Known_Esize                           (E : Entity_Id) return B;
6669   function Known_Normalized_First_Bit            (E : Entity_Id) return B;
6670   function Known_Normalized_Position             (E : Entity_Id) return B;
6671   function Known_Normalized_Position_Max         (E : Entity_Id) return B;
6672   function Known_RM_Size                         (E : Entity_Id) return B;
6673
6674   function Known_Static_Component_Bit_Offset     (E : Entity_Id) return B;
6675   function Known_Static_Component_Size           (E : Entity_Id) return B;
6676   function Known_Static_Esize                    (E : Entity_Id) return B;
6677   function Known_Static_Normalized_First_Bit     (E : Entity_Id) return B;
6678   function Known_Static_Normalized_Position      (E : Entity_Id) return B;
6679   function Known_Static_Normalized_Position_Max  (E : Entity_Id) return B;
6680   function Known_Static_RM_Size                  (E : Entity_Id) return B;
6681
6682   function Unknown_Alignment                     (E : Entity_Id) return B;
6683   function Unknown_Component_Bit_Offset          (E : Entity_Id) return B;
6684   function Unknown_Component_Size                (E : Entity_Id) return B;
6685   function Unknown_Esize                         (E : Entity_Id) return B;
6686   function Unknown_Normalized_First_Bit          (E : Entity_Id) return B;
6687   function Unknown_Normalized_Position           (E : Entity_Id) return B;
6688   function Unknown_Normalized_Position_Max       (E : Entity_Id) return B;
6689   function Unknown_RM_Size                       (E : Entity_Id) return B;
6690
6691   ------------------------------
6692   -- Attribute Set Procedures --
6693   ------------------------------
6694
6695   procedure Set_Abstract_States                 (Id : E; V : L);
6696   procedure Set_Accept_Address                  (Id : E; V : L);
6697   procedure Set_Access_Disp_Table               (Id : E; V : L);
6698   procedure Set_Actual_Subtype                  (Id : E; V : E);
6699   procedure Set_Address_Taken                   (Id : E; V : B := True);
6700   procedure Set_Alias                           (Id : E; V : E);
6701   procedure Set_Alignment                       (Id : E; V : U);
6702   procedure Set_Associated_Formal_Package       (Id : E; V : E);
6703   procedure Set_Associated_Node_For_Itype       (Id : E; V : N);
6704   procedure Set_Associated_Storage_Pool         (Id : E; V : E);
6705   procedure Set_Barrier_Function                (Id : E; V : N);
6706   procedure Set_Block_Node                      (Id : E; V : N);
6707   procedure Set_Body_Entity                     (Id : E; V : E);
6708   procedure Set_Body_Needed_For_SAL             (Id : E; V : B := True);
6709   procedure Set_CR_Discriminant                 (Id : E; V : E);
6710   procedure Set_C_Pass_By_Copy                  (Id : E; V : B := True);
6711   procedure Set_Can_Never_Be_Null               (Id : E; V : B := True);
6712   procedure Set_Can_Use_Internal_Rep            (Id : E; V : B := True);
6713   procedure Set_Checks_May_Be_Suppressed        (Id : E; V : B := True);
6714   procedure Set_Class_Wide_Type                 (Id : E; V : E);
6715   procedure Set_Cloned_Subtype                  (Id : E; V : E);
6716   procedure Set_Component_Alignment             (Id : E; V : C);
6717   procedure Set_Component_Bit_Offset            (Id : E; V : U);
6718   procedure Set_Component_Clause                (Id : E; V : N);
6719   procedure Set_Component_Size                  (Id : E; V : U);
6720   procedure Set_Component_Type                  (Id : E; V : E);
6721   procedure Set_Contract                        (Id : E; V : N);
6722   procedure Set_Corresponding_Concurrent_Type   (Id : E; V : E);
6723   procedure Set_Corresponding_Discriminant      (Id : E; V : E);
6724   procedure Set_Corresponding_Equality          (Id : E; V : E);
6725   procedure Set_Corresponding_Protected_Entry   (Id : E; V : E);
6726   procedure Set_Corresponding_Record_Type       (Id : E; V : E);
6727   procedure Set_Corresponding_Remote_Type       (Id : E; V : E);
6728   procedure Set_Current_Use_Clause              (Id : E; V : E);
6729   procedure Set_Current_Value                   (Id : E; V : N);
6730   procedure Set_DTC_Entity                      (Id : E; V : E);
6731   procedure Set_DT_Entry_Count                  (Id : E; V : U);
6732   procedure Set_DT_Offset_To_Top_Func           (Id : E; V : E);
6733   procedure Set_DT_Position                     (Id : E; V : U);
6734   procedure Set_Debug_Info_Off                  (Id : E; V : B := True);
6735   procedure Set_Debug_Renaming_Link             (Id : E; V : E);
6736   procedure Set_Default_Aspect_Component_Value  (Id : E; V : N);
6737   procedure Set_Default_Aspect_Value            (Id : E; V : N);
6738   procedure Set_Default_Expr_Function           (Id : E; V : E);
6739   procedure Set_Default_Expressions_Processed   (Id : E; V : B := True);
6740   procedure Set_Default_Value                   (Id : E; V : N);
6741   procedure Set_Delay_Cleanups                  (Id : E; V : B := True);
6742   procedure Set_Delay_Subprogram_Descriptors    (Id : E; V : B := True);
6743   procedure Set_Delta_Value                     (Id : E; V : R);
6744   procedure Set_Dependent_Instances             (Id : E; V : L);
6745   procedure Set_Depends_On_Private              (Id : E; V : B := True);
6746   procedure Set_Digits_Value                    (Id : E; V : U);
6747   procedure Set_Direct_Primitive_Operations     (Id : E; V : L);
6748   procedure Set_Directly_Designated_Type        (Id : E; V : E);
6749   procedure Set_Discard_Names                   (Id : E; V : B := True);
6750   procedure Set_Discriminal                     (Id : E; V : E);
6751   procedure Set_Discriminal_Link                (Id : E; V : E);
6752   procedure Set_Discriminant_Checking_Func      (Id : E; V : E);
6753   procedure Set_Discriminant_Constraint         (Id : E; V : L);
6754   procedure Set_Discriminant_Default_Value      (Id : E; V : N);
6755   procedure Set_Discriminant_Number             (Id : E; V : U);
6756   procedure Set_Dispatch_Table_Wrappers         (Id : E; V : L);
6757   procedure Set_Elaborate_Body_Desirable        (Id : E; V : B := True);
6758   procedure Set_Elaboration_Entity              (Id : E; V : E);
6759   procedure Set_Elaboration_Entity_Required     (Id : E; V : B := True);
6760   procedure Set_Enclosing_Scope                 (Id : E; V : E);
6761   procedure Set_Entry_Accepted                  (Id : E; V : B := True);
6762   procedure Set_Entry_Bodies_Array              (Id : E; V : E);
6763   procedure Set_Entry_Cancel_Parameter          (Id : E; V : E);
6764   procedure Set_Entry_Component                 (Id : E; V : E);
6765   procedure Set_Entry_Formal                    (Id : E; V : E);
6766   procedure Set_Entry_Index_Constant            (Id : E; V : E);
6767   procedure Set_Entry_Parameters_Type           (Id : E; V : E);
6768   procedure Set_Enum_Pos_To_Rep                 (Id : E; V : E);
6769   procedure Set_Enumeration_Pos                 (Id : E; V : U);
6770   procedure Set_Enumeration_Rep                 (Id : E; V : U);
6771   procedure Set_Enumeration_Rep_Expr            (Id : E; V : N);
6772   procedure Set_Equivalent_Type                 (Id : E; V : E);
6773   procedure Set_Esize                           (Id : E; V : U);
6774   procedure Set_Exception_Code                  (Id : E; V : U);
6775   procedure Set_Extra_Accessibility             (Id : E; V : E);
6776   procedure Set_Extra_Accessibility_Of_Result   (Id : E; V : E);
6777   procedure Set_Extra_Constrained               (Id : E; V : E);
6778   procedure Set_Extra_Formal                    (Id : E; V : E);
6779   procedure Set_Extra_Formals                   (Id : E; V : E);
6780   procedure Set_Finalization_Master             (Id : E; V : E);
6781   procedure Set_Finalize_Storage_Only           (Id : E; V : B := True);
6782   procedure Set_Finalizer                       (Id : E; V : E);
6783   procedure Set_First_Entity                    (Id : E; V : E);
6784   procedure Set_First_Exit_Statement            (Id : E; V : N);
6785   procedure Set_First_Index                     (Id : E; V : N);
6786   procedure Set_First_Literal                   (Id : E; V : E);
6787   procedure Set_First_Optional_Parameter        (Id : E; V : E);
6788   procedure Set_First_Private_Entity            (Id : E; V : E);
6789   procedure Set_First_Rep_Item                  (Id : E; V : N);
6790   procedure Set_Float_Rep                       (Id : E; V : F);
6791   procedure Set_Freeze_Node                     (Id : E; V : N);
6792   procedure Set_From_With_Type                  (Id : E; V : B := True);
6793   procedure Set_Full_View                       (Id : E; V : E);
6794   procedure Set_Generic_Homonym                 (Id : E; V : E);
6795   procedure Set_Generic_Renamings               (Id : E; V : L);
6796   procedure Set_Handler_Records                 (Id : E; V : S);
6797   procedure Set_Has_Aliased_Components          (Id : E; V : B := True);
6798   procedure Set_Has_Alignment_Clause            (Id : E; V : B := True);
6799   procedure Set_Has_All_Calls_Remote            (Id : E; V : B := True);
6800   procedure Set_Has_Anonymous_Master            (Id : E; V : B := True);
6801   procedure Set_Has_Atomic_Components           (Id : E; V : B := True);
6802   procedure Set_Has_Biased_Representation       (Id : E; V : B := True);
6803   procedure Set_Has_Completion                  (Id : E; V : B := True);
6804   procedure Set_Has_Completion_In_Body          (Id : E; V : B := True);
6805   procedure Set_Has_Complex_Representation      (Id : E; V : B := True);
6806   procedure Set_Has_Component_Size_Clause       (Id : E; V : B := True);
6807   procedure Set_Has_Constrained_Partial_View    (Id : E; V : B := True);
6808   procedure Set_Has_Contiguous_Rep              (Id : E; V : B := True);
6809   procedure Set_Has_Controlled_Component        (Id : E; V : B := True);
6810   procedure Set_Has_Controlling_Result          (Id : E; V : B := True);
6811   procedure Set_Has_Convention_Pragma           (Id : E; V : B := True);
6812   procedure Set_Has_Default_Aspect              (Id : E; V : B := True);
6813   procedure Set_Has_Delayed_Aspects             (Id : E; V : B := True);
6814   procedure Set_Has_Delayed_Freeze              (Id : E; V : B := True);
6815   procedure Set_Has_Discriminants               (Id : E; V : B := True);
6816   procedure Set_Has_Dispatch_Table              (Id : E; V : B := True);
6817   procedure Set_Has_Enumeration_Rep_Clause      (Id : E; V : B := True);
6818   procedure Set_Has_Exit                        (Id : E; V : B := True);
6819   procedure Set_Has_External_Tag_Rep_Clause     (Id : E; V : B := True);
6820   procedure Set_Has_Forward_Instantiation       (Id : E; V : B := True);
6821   procedure Set_Has_Fully_Qualified_Name        (Id : E; V : B := True);
6822   procedure Set_Has_Gigi_Rep_Item               (Id : E; V : B := True);
6823   procedure Set_Has_Homonym                     (Id : E; V : B := True);
6824   procedure Set_Has_Implicit_Dereference        (Id : E; V : B := True);
6825   procedure Set_Has_Independent_Components      (Id : E; V : B := True);
6826   procedure Set_Has_Inheritable_Invariants      (Id : E; V : B := True);
6827   procedure Set_Has_Initial_Value               (Id : E; V : B := True);
6828   procedure Set_Has_Invariants                  (Id : E; V : B := True);
6829   procedure Set_Has_Machine_Radix_Clause        (Id : E; V : B := True);
6830   procedure Set_Has_Master_Entity               (Id : E; V : B := True);
6831   procedure Set_Has_Missing_Return              (Id : E; V : B := True);
6832   procedure Set_Has_Nested_Block_With_Handler   (Id : E; V : B := True);
6833   procedure Set_Has_Non_Standard_Rep            (Id : E; V : B := True);
6834   procedure Set_Has_Object_Size_Clause          (Id : E; V : B := True);
6835   procedure Set_Has_Per_Object_Constraint       (Id : E; V : B := True);
6836   procedure Set_Has_Postconditions              (Id : E; V : B := True);
6837   procedure Set_Has_Pragma_Controlled           (Id : E; V : B := True);
6838   procedure Set_Has_Pragma_Elaborate_Body       (Id : E; V : B := True);
6839   procedure Set_Has_Pragma_Inline               (Id : E; V : B := True);
6840   procedure Set_Has_Pragma_Inline_Always        (Id : E; V : B := True);
6841   procedure Set_Has_Pragma_No_Inline            (Id : E; V : B := True);
6842   procedure Set_Has_Pragma_Ordered              (Id : E; V : B := True);
6843   procedure Set_Has_Pragma_Pack                 (Id : E; V : B := True);
6844   procedure Set_Has_Pragma_Preelab_Init         (Id : E; V : B := True);
6845   procedure Set_Has_Pragma_Pure                 (Id : E; V : B := True);
6846   procedure Set_Has_Pragma_Pure_Function        (Id : E; V : B := True);
6847   procedure Set_Has_Pragma_Thread_Local_Storage (Id : E; V : B := True);
6848   procedure Set_Has_Pragma_Unmodified           (Id : E; V : B := True);
6849   procedure Set_Has_Pragma_Unreferenced         (Id : E; V : B := True);
6850   procedure Set_Has_Pragma_Unreferenced_Objects (Id : E; V : B := True);
6851   procedure Set_Has_Predicates                  (Id : E; V : B := True);
6852   procedure Set_Has_Primitive_Operations        (Id : E; V : B := True);
6853   procedure Set_Has_Private_Ancestor            (Id : E; V : B := True);
6854   procedure Set_Has_Private_Declaration         (Id : E; V : B := True);
6855   procedure Set_Has_Qualified_Name              (Id : E; V : B := True);
6856   procedure Set_Has_RACW                        (Id : E; V : B := True);
6857   procedure Set_Has_Record_Rep_Clause           (Id : E; V : B := True);
6858   procedure Set_Has_Recursive_Call              (Id : E; V : B := True);
6859   procedure Set_Has_Size_Clause                 (Id : E; V : B := True);
6860   procedure Set_Has_Small_Clause                (Id : E; V : B := True);
6861   procedure Set_Has_Specified_Layout            (Id : E; V : B := True);
6862   procedure Set_Has_Specified_Stream_Input      (Id : E; V : B := True);
6863   procedure Set_Has_Specified_Stream_Output     (Id : E; V : B := True);
6864   procedure Set_Has_Specified_Stream_Read       (Id : E; V : B := True);
6865   procedure Set_Has_Specified_Stream_Write      (Id : E; V : B := True);
6866   procedure Set_Has_Static_Discriminants        (Id : E; V : B := True);
6867   procedure Set_Has_Storage_Size_Clause         (Id : E; V : B := True);
6868   procedure Set_Has_Stream_Size_Clause          (Id : E; V : B := True);
6869   procedure Set_Has_Task                        (Id : E; V : B := True);
6870   procedure Set_Has_Thunks                      (Id : E; V : B := True);
6871   procedure Set_Has_Unchecked_Union             (Id : E; V : B := True);
6872   procedure Set_Has_Unknown_Discriminants       (Id : E; V : B := True);
6873   procedure Set_Has_Up_Level_Access             (Id : E; V : B := True);
6874   procedure Set_Has_Volatile_Components         (Id : E; V : B := True);
6875   procedure Set_Has_Xref_Entry                  (Id : E; V : B := True);
6876   procedure Set_Hiding_Loop_Variable            (Id : E; V : E);
6877   procedure Set_Homonym                         (Id : E; V : E);
6878   procedure Set_In_Package_Body                 (Id : E; V : B := True);
6879   procedure Set_In_Private_Part                 (Id : E; V : B := True);
6880   procedure Set_In_Use                          (Id : E; V : B := True);
6881   procedure Set_Initialization_Statements       (Id : E; V : N);
6882   procedure Set_Integrity_Level                 (Id : E; V : U);
6883   procedure Set_Inner_Instances                 (Id : E; V : L);
6884   procedure Set_Interface_Alias                 (Id : E; V : E);
6885   procedure Set_Interface_Name                  (Id : E; V : N);
6886   procedure Set_Interfaces                      (Id : E; V : L);
6887   procedure Set_Is_AST_Entry                    (Id : E; V : B := True);
6888   procedure Set_Is_Abstract_Subprogram          (Id : E; V : B := True);
6889   procedure Set_Is_Abstract_Type                (Id : E; V : B := True);
6890   procedure Set_Is_Access_Constant              (Id : E; V : B := True);
6891   procedure Set_Is_Ada_2005_Only                (Id : E; V : B := True);
6892   procedure Set_Is_Ada_2012_Only                (Id : E; V : B := True);
6893   procedure Set_Is_Aliased                      (Id : E; V : B := True);
6894   procedure Set_Is_Asynchronous                 (Id : E; V : B := True);
6895   procedure Set_Is_Atomic                       (Id : E; V : B := True);
6896   procedure Set_Is_Bit_Packed_Array             (Id : E; V : B := True);
6897   procedure Set_Is_CPP_Class                    (Id : E; V : B := True);
6898   procedure Set_Is_Called                       (Id : E; V : B := True);
6899   procedure Set_Is_Character_Type               (Id : E; V : B := True);
6900   procedure Set_Is_Child_Unit                   (Id : E; V : B := True);
6901   procedure Set_Is_Class_Wide_Equivalent_Type   (Id : E; V : B := True);
6902   procedure Set_Is_Compilation_Unit             (Id : E; V : B := True);
6903   procedure Set_Is_Completely_Hidden            (Id : E; V : B := True);
6904   procedure Set_Is_Concurrent_Record_Type       (Id : E; V : B := True);
6905   procedure Set_Is_Constr_Subt_For_UN_Aliased   (Id : E; V : B := True);
6906   procedure Set_Is_Constr_Subt_For_U_Nominal    (Id : E; V : B := True);
6907   procedure Set_Is_Constrained                  (Id : E; V : B := True);
6908   procedure Set_Is_Constructor                  (Id : E; V : B := True);
6909   procedure Set_Is_Controlled                   (Id : E; V : B := True);
6910   procedure Set_Is_Controlling_Formal           (Id : E; V : B := True);
6911   procedure Set_Is_Descendent_Of_Address        (Id : E; V : B := True);
6912   procedure Set_Is_Discrim_SO_Function          (Id : E; V : B := True);
6913   procedure Set_Is_Dispatch_Table_Entity        (Id : E; V : B := True);
6914   procedure Set_Is_Dispatching_Operation        (Id : E; V : B := True);
6915   procedure Set_Is_Eliminated                   (Id : E; V : B := True);
6916   procedure Set_Is_Entry_Formal                 (Id : E; V : B := True);
6917   procedure Set_Is_Exported                     (Id : E; V : B := True);
6918   procedure Set_Is_First_Subtype                (Id : E; V : B := True);
6919   procedure Set_Is_For_Access_Subtype           (Id : E; V : B := True);
6920   procedure Set_Is_Formal_Subprogram            (Id : E; V : B := True);
6921   procedure Set_Is_Frozen                       (Id : E; V : B := True);
6922   procedure Set_Is_Generic_Actual_Type          (Id : E; V : B := True);
6923   procedure Set_Is_Generic_Instance             (Id : E; V : B := True);
6924   procedure Set_Is_Generic_Type                 (Id : E; V : B := True);
6925   procedure Set_Is_Hidden                       (Id : E; V : B := True);
6926   procedure Set_Is_Hidden_Open_Scope            (Id : E; V : B := True);
6927   procedure Set_Is_Immediately_Visible          (Id : E; V : B := True);
6928   procedure Set_Is_Implementation_Defined       (Id : E; V : B := True);
6929   procedure Set_Is_Imported                     (Id : E; V : B := True);
6930   procedure Set_Is_Inlined                      (Id : E; V : B := True);
6931   procedure Set_Is_Instantiated                 (Id : E; V : B := True);
6932   procedure Set_Is_Interface                    (Id : E; V : B := True);
6933   procedure Set_Is_Internal                     (Id : E; V : B := True);
6934   procedure Set_Is_Interrupt_Handler            (Id : E; V : B := True);
6935   procedure Set_Is_Intrinsic_Subprogram         (Id : E; V : B := True);
6936   procedure Set_Is_Itype                        (Id : E; V : B := True);
6937   procedure Set_Is_Known_Non_Null               (Id : E; V : B := True);
6938   procedure Set_Is_Known_Null                   (Id : E; V : B := True);
6939   procedure Set_Is_Known_Valid                  (Id : E; V : B := True);
6940   procedure Set_Is_Limited_Composite            (Id : E; V : B := True);
6941   procedure Set_Is_Limited_Interface            (Id : E; V : B := True);
6942   procedure Set_Is_Limited_Record               (Id : E; V : B := True);
6943   procedure Set_Is_Local_Anonymous_Access       (Id : E; V : B := True);
6944   procedure Set_Is_Machine_Code_Subprogram      (Id : E; V : B := True);
6945   procedure Set_Is_Non_Static_Subtype           (Id : E; V : B := True);
6946   procedure Set_Is_Null_Init_Proc               (Id : E; V : B := True);
6947   procedure Set_Is_Obsolescent                  (Id : E; V : B := True);
6948   procedure Set_Is_Only_Out_Parameter           (Id : E; V : B := True);
6949   procedure Set_Is_Optional_Parameter           (Id : E; V : B := True);
6950   procedure Set_Is_Package_Body_Entity          (Id : E; V : B := True);
6951   procedure Set_Is_Packed                       (Id : E; V : B := True);
6952   procedure Set_Is_Packed_Array_Type            (Id : E; V : B := True);
6953   procedure Set_Is_Potentially_Use_Visible      (Id : E; V : B := True);
6954   procedure Set_Is_Preelaborated                (Id : E; V : B := True);
6955   procedure Set_Is_Primitive                    (Id : E; V : B := True);
6956   procedure Set_Is_Primitive_Wrapper            (Id : E; V : B := True);
6957   procedure Set_Is_Private_Composite            (Id : E; V : B := True);
6958   procedure Set_Is_Private_Descendant           (Id : E; V : B := True);
6959   procedure Set_Is_Private_Primitive            (Id : E; V : B := True);
6960   procedure Set_Is_Processed_Transient          (Id : E; V : B := True);
6961   procedure Set_Is_Public                       (Id : E; V : B := True);
6962   procedure Set_Is_Pure                         (Id : E; V : B := True);
6963   procedure Set_Is_Pure_Unit_Access_Type        (Id : E; V : B := True);
6964   procedure Set_Is_RACW_Stub_Type               (Id : E; V : B := True);
6965   procedure Set_Is_Raised                       (Id : E; V : B := True);
6966   procedure Set_Is_Remote_Call_Interface        (Id : E; V : B := True);
6967   procedure Set_Is_Remote_Types                 (Id : E; V : B := True);
6968   procedure Set_Is_Renaming_Of_Object           (Id : E; V : B := True);
6969   procedure Set_Is_Return_Object                (Id : E; V : B := True);
6970   procedure Set_Is_Safe_To_Reevaluate           (Id : E; V : B := True);
6971   procedure Set_Is_Shared_Passive               (Id : E; V : B := True);
6972   procedure Set_Is_Statically_Allocated         (Id : E; V : B := True);
6973   procedure Set_Is_Tag                          (Id : E; V : B := True);
6974   procedure Set_Is_Tagged_Type                  (Id : E; V : B := True);
6975   procedure Set_Is_Thunk                        (Id : E; V : B := True);
6976   procedure Set_Is_Trivial_Subprogram           (Id : E; V : B := True);
6977   procedure Set_Is_True_Constant                (Id : E; V : B := True);
6978   procedure Set_Is_Unchecked_Union              (Id : E; V : B := True);
6979   procedure Set_Is_Underlying_Record_View       (Id : E; V : B := True);
6980   procedure Set_Is_Unsigned_Type                (Id : E; V : B := True);
6981   procedure Set_Is_VMS_Exception                (Id : E; V : B := True);
6982   procedure Set_Is_Valued_Procedure             (Id : E; V : B := True);
6983   procedure Set_Is_Visible_Formal               (Id : E; V : B := True);
6984   procedure Set_Is_Visible_Lib_Unit             (Id : E; V : B := True);
6985   procedure Set_Is_Volatile                     (Id : E; V : B := True);
6986   procedure Set_Itype_Printed                   (Id : E; V : B := True);
6987   procedure Set_Kill_Elaboration_Checks         (Id : E; V : B := True);
6988   procedure Set_Kill_Range_Checks               (Id : E; V : B := True);
6989   procedure Set_Known_To_Have_Preelab_Init      (Id : E; V : B := True);
6990   procedure Set_Last_Assignment                 (Id : E; V : N);
6991   procedure Set_Last_Entity                     (Id : E; V : E);
6992   procedure Set_Limited_View                    (Id : E; V : E);
6993   procedure Set_Lit_Indexes                     (Id : E; V : E);
6994   procedure Set_Lit_Strings                     (Id : E; V : E);
6995   procedure Set_Loop_Entry_Attributes           (Id : E; V : L);
6996   procedure Set_Low_Bound_Tested                (Id : E; V : B := True);
6997   procedure Set_Machine_Radix_10                (Id : E; V : B := True);
6998   procedure Set_Master_Id                       (Id : E; V : E);
6999   procedure Set_Materialize_Entity              (Id : E; V : B := True);
7000   procedure Set_Mechanism                       (Id : E; V : M);
7001   procedure Set_Modulus                         (Id : E; V : U);
7002   procedure Set_Must_Be_On_Byte_Boundary        (Id : E; V : B := True);
7003   procedure Set_Must_Have_Preelab_Init          (Id : E; V : B := True);
7004   procedure Set_Needs_Debug_Info                (Id : E; V : B := True);
7005   procedure Set_Needs_No_Actuals                (Id : E; V : B := True);
7006   procedure Set_Never_Set_In_Source             (Id : E; V : B := True);
7007   procedure Set_Next_Inlined_Subprogram         (Id : E; V : E);
7008   procedure Set_No_Pool_Assigned                (Id : E; V : B := True);
7009   procedure Set_No_Return                       (Id : E; V : B := True);
7010   procedure Set_No_Strict_Aliasing              (Id : E; V : B := True);
7011   procedure Set_Non_Binary_Modulus              (Id : E; V : B := True);
7012   procedure Set_Non_Limited_View                (Id : E; V : E);
7013   procedure Set_Nonzero_Is_True                 (Id : E; V : B := True);
7014   procedure Set_Normalized_First_Bit            (Id : E; V : U);
7015   procedure Set_Normalized_Position             (Id : E; V : U);
7016   procedure Set_Normalized_Position_Max         (Id : E; V : U);
7017   procedure Set_OK_To_Rename                    (Id : E; V : B := True);
7018   procedure Set_OK_To_Reorder_Components        (Id : E; V : B := True);
7019   procedure Set_Optimize_Alignment_Space        (Id : E; V : B := True);
7020   procedure Set_Optimize_Alignment_Time         (Id : E; V : B := True);
7021   procedure Set_Original_Access_Type            (Id : E; V : E);
7022   procedure Set_Original_Array_Type             (Id : E; V : E);
7023   procedure Set_Original_Record_Component       (Id : E; V : E);
7024   procedure Set_Overlays_Constant               (Id : E; V : B := True);
7025   procedure Set_Overridden_Operation            (Id : E; V : E);
7026   procedure Set_PPC_Wrapper                     (Id : E; V : E);
7027   procedure Set_Package_Instantiation           (Id : E; V : N);
7028   procedure Set_Packed_Array_Type               (Id : E; V : E);
7029   procedure Set_Parent_Subtype                  (Id : E; V : E);
7030   procedure Set_Postcondition_Proc              (Id : E; V : E);
7031   procedure Set_Prival                          (Id : E; V : E);
7032   procedure Set_Prival_Link                     (Id : E; V : E);
7033   procedure Set_Private_Dependents              (Id : E; V : L);
7034   procedure Set_Private_View                    (Id : E; V : N);
7035   procedure Set_Protected_Body_Subprogram       (Id : E; V : E);
7036   procedure Set_Protected_Formal                (Id : E; V : E);
7037   procedure Set_Protection_Object               (Id : E; V : E);
7038   procedure Set_RM_Size                         (Id : E; V : U);
7039   procedure Set_Reachable                       (Id : E; V : B := True);
7040   procedure Set_Referenced                      (Id : E; V : B := True);
7041   procedure Set_Referenced_As_LHS               (Id : E; V : B := True);
7042   procedure Set_Referenced_As_Out_Parameter     (Id : E; V : B := True);
7043   procedure Set_Refined_State                   (Id : E; V : E);
7044   procedure Set_Register_Exception_Call         (Id : E; V : N);
7045   procedure Set_Related_Array_Object            (Id : E; V : E);
7046   procedure Set_Related_Expression              (Id : E; V : N);
7047   procedure Set_Related_Instance                (Id : E; V : E);
7048   procedure Set_Related_Type                    (Id : E; V : E);
7049   procedure Set_Relative_Deadline_Variable      (Id : E; V : E);
7050   procedure Set_Renamed_Entity                  (Id : E; V : N);
7051   procedure Set_Renamed_In_Spec                 (Id : E; V : B := True);
7052   procedure Set_Renamed_Object                  (Id : E; V : N);
7053   procedure Set_Renaming_Map                    (Id : E; V : U);
7054   procedure Set_Requires_Overriding             (Id : E; V : B := True);
7055   procedure Set_Return_Applies_To               (Id : E; V : N);
7056   procedure Set_Return_Present                  (Id : E; V : B := True);
7057   procedure Set_Returns_By_Ref                  (Id : E; V : B := True);
7058   procedure Set_Reverse_Bit_Order               (Id : E; V : B := True);
7059   procedure Set_Reverse_Storage_Order           (Id : E; V : B := True);
7060   procedure Set_Scalar_Range                    (Id : E; V : N);
7061   procedure Set_Scale_Value                     (Id : E; V : U);
7062   procedure Set_Scope_Depth_Value               (Id : E; V : U);
7063   procedure Set_Sec_Stack_Needed_For_Return     (Id : E; V : B := True);
7064   procedure Set_Shadow_Entities                 (Id : E; V : S);
7065   procedure Set_Shared_Var_Procs_Instance       (Id : E; V : E);
7066   procedure Set_Size_Check_Code                 (Id : E; V : N);
7067   procedure Set_Size_Depends_On_Discriminant    (Id : E; V : B := True);
7068   procedure Set_Size_Known_At_Compile_Time      (Id : E; V : B := True);
7069   procedure Set_Small_Value                     (Id : E; V : R);
7070   procedure Set_Spec_Entity                     (Id : E; V : E);
7071   procedure Set_Static_Elaboration_Desired      (Id : E; V : B);
7072   procedure Set_Static_Initialization           (Id : E; V : N);
7073   procedure Set_Static_Predicate                (Id : E; V : S);
7074   procedure Set_Status_Flag_Or_Transient_Decl   (Id : E; V : E);
7075   procedure Set_Storage_Size_Variable           (Id : E; V : E);
7076   procedure Set_Stored_Constraint               (Id : E; V : L);
7077   procedure Set_Strict_Alignment                (Id : E; V : B := True);
7078   procedure Set_String_Literal_Length           (Id : E; V : U);
7079   procedure Set_String_Literal_Low_Bound        (Id : E; V : N);
7080   procedure Set_Subprograms_For_Type            (Id : E; V : E);
7081   procedure Set_Suppress_Elaboration_Warnings   (Id : E; V : B := True);
7082   procedure Set_Suppress_Initialization         (Id : E; V : B := True);
7083   procedure Set_Suppress_Style_Checks           (Id : E; V : B := True);
7084   procedure Set_Suppress_Value_Tracking_On_Call (Id : E; V : B := True);
7085   procedure Set_Task_Body_Procedure             (Id : E; V : N);
7086   procedure Set_Treat_As_Volatile               (Id : E; V : B := True);
7087   procedure Set_Underlying_Full_View            (Id : E; V : E);
7088   procedure Set_Underlying_Record_View          (Id : E; V : E);
7089   procedure Set_Universal_Aliasing              (Id : E; V : B := True);
7090   procedure Set_Unset_Reference                 (Id : E; V : N);
7091   procedure Set_Used_As_Generic_Actual          (Id : E; V : B := True);
7092   procedure Set_Uses_Lock_Free                  (Id : E; V : B := True);
7093   procedure Set_Uses_Sec_Stack                  (Id : E; V : B := True);
7094   procedure Set_Warnings_Off                    (Id : E; V : B := True);
7095   procedure Set_Warnings_Off_Used               (Id : E; V : B := True);
7096   procedure Set_Warnings_Off_Used_Unmodified    (Id : E; V : B := True);
7097   procedure Set_Warnings_Off_Used_Unreferenced  (Id : E; V : B := True);
7098   procedure Set_Was_Hidden                      (Id : E; V : B := True);
7099   procedure Set_Wrapped_Entity                  (Id : E; V : E);
7100
7101   ---------------------------------------------------
7102   -- Access to Subprograms in Subprograms_For_Type --
7103   ---------------------------------------------------
7104
7105   function Invariant_Procedure                 (Id : E) return N;
7106   function Predicate_Function                  (Id : E) return N;
7107
7108   procedure Set_Invariant_Procedure            (Id : E; V : E);
7109   procedure Set_Predicate_Function             (Id : E; V : E);
7110
7111   -----------------------------------
7112   -- Field Initialization Routines --
7113   -----------------------------------
7114
7115   --  These routines are overloadings of some of the above Set procedures
7116   --  where the argument is normally a Uint. The overloadings take an Int
7117   --  parameter instead, and appropriately convert it. There are also
7118   --  versions that implicitly initialize to the appropriate "not set"
7119   --  value. The not set (unknown) values are as follows:
7120
7121   --    Alignment                 Uint_0
7122   --    Component_Size            Uint_0
7123   --    Component_Bit_Offset      No_Uint
7124   --    Digits_Value              Uint_0
7125   --    Esize                     Uint_0
7126   --    Normalized_First_Bit      No_Uint
7127   --    Normalized_Position       No_Uint
7128   --    Normalized_Position_Max   No_Uint
7129   --    RM_Size                   Uint_0
7130
7131   --  It would be cleaner to use No_Uint in all these cases, but historically
7132   --  we chose to use Uint_0 at first, and the change over will take time ???
7133   --  This is particularly true for the RM_Size field, where a value of zero
7134   --  is legitimate and causes some kludges around the code.
7135
7136   --  Contrary to the corresponding Set procedures above, these routines
7137   --  do NOT check the entity kind of their argument, instead they set the
7138   --  underlying Uint fields directly (this allows them to be used for
7139   --  entities whose Ekind has not been set yet).
7140
7141   procedure Init_Alignment                (Id : E; V : Int);
7142   procedure Init_Component_Size           (Id : E; V : Int);
7143   procedure Init_Component_Bit_Offset     (Id : E; V : Int);
7144   procedure Init_Digits_Value             (Id : E; V : Int);
7145   procedure Init_Esize                    (Id : E; V : Int);
7146   procedure Init_Normalized_First_Bit     (Id : E; V : Int);
7147   procedure Init_Normalized_Position      (Id : E; V : Int);
7148   procedure Init_Normalized_Position_Max  (Id : E; V : Int);
7149   procedure Init_RM_Size                  (Id : E; V : Int);
7150
7151   procedure Init_Alignment                (Id : E);
7152   procedure Init_Component_Size           (Id : E);
7153   procedure Init_Component_Bit_Offset     (Id : E);
7154   procedure Init_Digits_Value             (Id : E);
7155   procedure Init_Esize                    (Id : E);
7156   procedure Init_Normalized_First_Bit     (Id : E);
7157   procedure Init_Normalized_Position      (Id : E);
7158   procedure Init_Normalized_Position_Max  (Id : E);
7159   procedure Init_RM_Size                  (Id : E);
7160
7161   procedure Init_Size_Align (Id : E);
7162   --  This procedure initializes both size fields and the alignment
7163   --  field to all be Unknown.
7164
7165   procedure Init_Object_Size_Align (Id : E);
7166   --  Same as Init_Size_Align except RM_Size field (which is only for types)
7167   --  is unaffected.
7168
7169   procedure Init_Size (Id : E; V : Int);
7170   --  Initialize both the Esize and RM_Size fields of E to V
7171
7172   procedure Init_Component_Location (Id : E);
7173   --  Initializes all fields describing the location of a component
7174   --  (Normalized_Position, Component_Bit_Offset, Normalized_First_Bit,
7175   --  Normalized_Position_Max, Esize) to all be Unknown.
7176
7177   ---------------
7178   -- Iterators --
7179   ---------------
7180
7181   --  The call to Next_xxx (obj) is equivalent to obj := Next_xxx (obj)
7182   --  We define the set of Proc_Next_xxx routines simply for the purposes
7183   --  of inlining them without necessarily inlining the function.
7184
7185   procedure Proc_Next_Component                 (N : in out Node_Id);
7186   procedure Proc_Next_Component_Or_Discriminant (N : in out Node_Id);
7187   procedure Proc_Next_Discriminant              (N : in out Node_Id);
7188   procedure Proc_Next_Formal                    (N : in out Node_Id);
7189   procedure Proc_Next_Formal_With_Extras        (N : in out Node_Id);
7190   procedure Proc_Next_Index                     (N : in out Node_Id);
7191   procedure Proc_Next_Inlined_Subprogram        (N : in out Node_Id);
7192   procedure Proc_Next_Literal                   (N : in out Node_Id);
7193   procedure Proc_Next_Stored_Discriminant       (N : in out Node_Id);
7194
7195   pragma Inline (Proc_Next_Component);
7196   pragma Inline (Proc_Next_Component_Or_Discriminant);
7197   pragma Inline (Proc_Next_Discriminant);
7198   pragma Inline (Proc_Next_Formal);
7199   pragma Inline (Proc_Next_Formal_With_Extras);
7200   pragma Inline (Proc_Next_Index);
7201   pragma Inline (Proc_Next_Inlined_Subprogram);
7202   pragma Inline (Proc_Next_Literal);
7203   pragma Inline (Proc_Next_Stored_Discriminant);
7204
7205   procedure Next_Component                 (N : in out Node_Id)
7206     renames Proc_Next_Component;
7207
7208   procedure Next_Component_Or_Discriminant (N : in out Node_Id)
7209     renames Proc_Next_Component_Or_Discriminant;
7210
7211   procedure Next_Discriminant              (N : in out Node_Id)
7212     renames Proc_Next_Discriminant;
7213
7214   procedure Next_Formal                    (N : in out Node_Id)
7215     renames Proc_Next_Formal;
7216
7217   procedure Next_Formal_With_Extras        (N : in out Node_Id)
7218     renames Proc_Next_Formal_With_Extras;
7219
7220   procedure Next_Index                     (N : in out Node_Id)
7221     renames Proc_Next_Index;
7222
7223   procedure Next_Inlined_Subprogram        (N : in out Node_Id)
7224     renames Proc_Next_Inlined_Subprogram;
7225
7226   procedure Next_Literal                   (N : in out Node_Id)
7227     renames Proc_Next_Literal;
7228
7229   procedure Next_Stored_Discriminant       (N : in out Node_Id)
7230     renames Proc_Next_Stored_Discriminant;
7231
7232   ---------------------------
7233   -- Testing Warning Flags --
7234   ---------------------------
7235
7236   --  These routines are to be used rather than testing flags Warnings_Off,
7237   --  Has_Pragma_Unmodified, Has_Pragma_Unreferenced. They deal with setting
7238   --  the flags Warnings_Off_Used[_Unmodified|Unreferenced] for later access.
7239
7240   function Has_Warnings_Off (E : Entity_Id) return Boolean;
7241   --  If Warnings_Off is set on E, then returns True and also sets the flag
7242   --  Warnings_Off_Used on E. If Warnings_Off is not set on E, returns False
7243   --  and has no side effect.
7244
7245   function Has_Unmodified (E : Entity_Id) return Boolean;
7246   --  If flag Has_Pragma_Unmodified is set on E, returns True with no side
7247   --  effects. Otherwise if Warnings_Off is set on E, returns True and also
7248   --  sets the flag Warnings_Off_Used_Unmodified on E. If neither of the flags
7249   --  Warnings_Off nor Has_Pragma_Unmodified is set, returns False with no
7250   --  side effects.
7251
7252   function Has_Unreferenced (E : Entity_Id) return Boolean;
7253   --  If flag Has_Pragma_Unreferenced is set on E, returns True with no side
7254   --  effects. Otherwise if Warnings_Off is set on E, returns True and also
7255   --  sets the flag Warnings_Off_Used_Unreferenced on E. If neither of the
7256   --  flags Warnings_Off nor Has_Pragma_Unreferenced is set, returns False
7257   --  with no side effects.
7258
7259   ----------------------------------------------
7260   -- Subprograms for Accessing Rep Item Chain --
7261   ----------------------------------------------
7262
7263   --  The First_Rep_Item field of every entity points to a linked list (linked
7264   --  through Next_Rep_Item) of representation pragmas, attribute definition
7265   --  clauses, representation clauses, and aspect specifications that apply to
7266   --  the item. Note that in the case of types, it is assumed that any such
7267   --  rep items for a base type also apply to all subtypes. This is achieved
7268   --  by having the chain for subtypes link onto the chain for the base type,
7269   --  so that new entries for the subtype are added at the start of the chain.
7270   --
7271   --  Note: aspect specification nodes are linked only when evaluation of the
7272   --  expression is deferred to the freeze point. For further details see
7273   --  Sem_Ch13.Analyze_Aspect_Specifications.
7274
7275   function Get_Attribute_Definition_Clause
7276     (E  : Entity_Id;
7277      Id : Attribute_Id) return Node_Id;
7278   --  Searches the Rep_Item chain for a given entity E, for an instance of an
7279   --  attribute definition clause with the given attribute Id. If found, the
7280   --  value returned is the N_Attribute_Definition_Clause node, otherwise
7281   --  Empty is returned.
7282
7283   function Get_Record_Representation_Clause (E : Entity_Id) return Node_Id;
7284   --  Searches the Rep_Item chain for a given entity E, for a record
7285   --  representation clause, and if found, returns it. Returns Empty
7286   --  if no such clause is found.
7287
7288   function Present_In_Rep_Item (E : Entity_Id; N : Node_Id) return Boolean;
7289   --  Return True if N is present in the Rep_Item chain for a given entity E
7290
7291   procedure Record_Rep_Item (E : Entity_Id; N : Node_Id);
7292   --  N is the node for a representation pragma, representation clause, an
7293   --  attribute definition clause, or an aspect specification that applies to
7294   --  entity E. This procedure links the node N onto the Rep_Item chain for
7295   --  entity E. Note that it is an error to call this procedure with E being
7296   --  overloadable, and N being a pragma that applies to multiple overloadable
7297   --  entities (Convention, Interface, Inline, Inline_Always, Import, Export,
7298   --  External). This is not allowed even in the case where the entity is not
7299   --  overloaded, since we can't rely on it being present in the overloaded
7300   --  case, it is not useful to have it present in the non-overloaded case.
7301
7302   -------------------------------
7303   -- Miscellaneous Subprograms --
7304   -------------------------------
7305
7306   procedure Append_Entity (Id : Entity_Id; V : Entity_Id);
7307   --  Add an entity to the list of entities declared in the scope V
7308
7309   function Get_Full_View (T : Entity_Id) return Entity_Id;
7310   --  If T is an incomplete type and the full declaration has been seen, or
7311   --  is the name of a class_wide type whose root is incomplete, return the
7312   --  corresponding full declaration, else return T itself.
7313
7314   function Is_Entity_Name (N : Node_Id) return Boolean;
7315   --  Test if the node N is the name of an entity (i.e. is an identifier,
7316   --  expanded name, or an attribute reference that returns an entity).
7317
7318   function Next_Index (Id : Node_Id) return Node_Id;
7319   --  Given an index from a previous call to First_Index or Next_Index,
7320   --  returns a node representing the occurrence of the next index subtype,
7321   --  or Empty if there are no more index subtypes.
7322
7323   function Scope_Depth (Id : Entity_Id) return Uint;
7324   --  Returns the scope depth value of the Id, unless the Id is a record
7325   --  type, in which case it returns the scope depth of the record scope.
7326
7327   function Subtype_Kind (K : Entity_Kind) return Entity_Kind;
7328   --  Given an entity_kind K this function returns the entity_kind
7329   --  corresponding to subtype kind of the type represented by K. For
7330   --  example if K is E_Signed_Integer_Type then E_Signed_Integer_Subtype
7331   --  is returned. If K is already a subtype kind it itself is returned. An
7332   --  internal error is generated if no such correspondence exists for K.
7333
7334   ----------------------------------
7335   -- Debugging Output Subprograms --
7336   ----------------------------------
7337
7338   procedure Write_Entity_Flags (Id : Entity_Id; Prefix : String);
7339   --  Writes a series of entries giving a line for each flag that is
7340   --  set to True. Each line is prefixed by the given string
7341
7342   procedure Write_Entity_Info (Id : Entity_Id; Prefix : String);
7343   --  A debugging procedure to write out information about an entity
7344
7345   procedure Write_Field6_Name  (Id : Entity_Id);
7346   procedure Write_Field7_Name  (Id : Entity_Id);
7347   procedure Write_Field8_Name  (Id : Entity_Id);
7348   procedure Write_Field9_Name  (Id : Entity_Id);
7349   procedure Write_Field10_Name (Id : Entity_Id);
7350   procedure Write_Field11_Name (Id : Entity_Id);
7351   procedure Write_Field12_Name (Id : Entity_Id);
7352   procedure Write_Field13_Name (Id : Entity_Id);
7353   procedure Write_Field14_Name (Id : Entity_Id);
7354   procedure Write_Field15_Name (Id : Entity_Id);
7355   procedure Write_Field16_Name (Id : Entity_Id);
7356   procedure Write_Field17_Name (Id : Entity_Id);
7357   procedure Write_Field18_Name (Id : Entity_Id);
7358   procedure Write_Field19_Name (Id : Entity_Id);
7359   procedure Write_Field20_Name (Id : Entity_Id);
7360   procedure Write_Field21_Name (Id : Entity_Id);
7361   procedure Write_Field22_Name (Id : Entity_Id);
7362   procedure Write_Field23_Name (Id : Entity_Id);
7363   procedure Write_Field24_Name (Id : Entity_Id);
7364   procedure Write_Field25_Name (Id : Entity_Id);
7365   procedure Write_Field26_Name (Id : Entity_Id);
7366   procedure Write_Field27_Name (Id : Entity_Id);
7367   procedure Write_Field28_Name (Id : Entity_Id);
7368   procedure Write_Field29_Name (Id : Entity_Id);
7369   procedure Write_Field30_Name (Id : Entity_Id);
7370   procedure Write_Field31_Name (Id : Entity_Id);
7371   procedure Write_Field32_Name (Id : Entity_Id);
7372   procedure Write_Field33_Name (Id : Entity_Id);
7373   procedure Write_Field34_Name (Id : Entity_Id);
7374   procedure Write_Field35_Name (Id : Entity_Id);
7375   --  These routines are used in Treepr to output a nice symbolic name for
7376   --  the given field, depending on the Ekind. No blanks or end of lines are
7377   --  output, just the characters of the field name.
7378
7379   --------------------
7380   -- Inline Pragmas --
7381   --------------------
7382
7383   --  Note that these inline pragmas are referenced by the XEINFO utility
7384   --  program in preparing the corresponding C header, and only those
7385   --  subprograms meeting the requirements documented in the section on
7386   --  XEINFO may be referenced in this section.
7387
7388   pragma Inline (Abstract_States);
7389   pragma Inline (Accept_Address);
7390   pragma Inline (Access_Disp_Table);
7391   pragma Inline (Actual_Subtype);
7392   pragma Inline (Address_Taken);
7393   pragma Inline (Alias);
7394   pragma Inline (Alignment);
7395   pragma Inline (Associated_Formal_Package);
7396   pragma Inline (Associated_Node_For_Itype);
7397   pragma Inline (Associated_Storage_Pool);
7398   pragma Inline (Barrier_Function);
7399   pragma Inline (Block_Node);
7400   pragma Inline (Body_Entity);
7401   pragma Inline (Body_Needed_For_SAL);
7402   pragma Inline (CR_Discriminant);
7403   pragma Inline (C_Pass_By_Copy);
7404   pragma Inline (Can_Never_Be_Null);
7405   pragma Inline (Can_Use_Internal_Rep);
7406   pragma Inline (Checks_May_Be_Suppressed);
7407   pragma Inline (Class_Wide_Type);
7408   pragma Inline (Cloned_Subtype);
7409   pragma Inline (Component_Bit_Offset);
7410   pragma Inline (Component_Clause);
7411   pragma Inline (Component_Size);
7412   pragma Inline (Component_Type);
7413   pragma Inline (Contract);
7414   pragma Inline (Corresponding_Concurrent_Type);
7415   pragma Inline (Corresponding_Discriminant);
7416   pragma Inline (Corresponding_Equality);
7417   pragma Inline (Corresponding_Protected_Entry);
7418   pragma Inline (Corresponding_Record_Type);
7419   pragma Inline (Corresponding_Remote_Type);
7420   pragma Inline (Current_Use_Clause);
7421   pragma Inline (Current_Value);
7422   pragma Inline (DTC_Entity);
7423   pragma Inline (DT_Entry_Count);
7424   pragma Inline (DT_Offset_To_Top_Func);
7425   pragma Inline (DT_Position);
7426   pragma Inline (Debug_Info_Off);
7427   pragma Inline (Debug_Renaming_Link);
7428   pragma Inline (Default_Aspect_Component_Value);
7429   pragma Inline (Default_Aspect_Value);
7430   pragma Inline (Default_Expr_Function);
7431   pragma Inline (Default_Expressions_Processed);
7432   pragma Inline (Default_Value);
7433   pragma Inline (Delay_Cleanups);
7434   pragma Inline (Delay_Subprogram_Descriptors);
7435   pragma Inline (Delta_Value);
7436   pragma Inline (Dependent_Instances);
7437   pragma Inline (Depends_On_Private);
7438   pragma Inline (Digits_Value);
7439   pragma Inline (Direct_Primitive_Operations);
7440   pragma Inline (Directly_Designated_Type);
7441   pragma Inline (Discard_Names);
7442   pragma Inline (Discriminal);
7443   pragma Inline (Discriminal_Link);
7444   pragma Inline (Discriminant_Checking_Func);
7445   pragma Inline (Discriminant_Constraint);
7446   pragma Inline (Discriminant_Default_Value);
7447   pragma Inline (Discriminant_Number);
7448   pragma Inline (Dispatch_Table_Wrappers);
7449   pragma Inline (Elaborate_Body_Desirable);
7450   pragma Inline (Elaboration_Entity);
7451   pragma Inline (Elaboration_Entity_Required);
7452   pragma Inline (Enclosing_Scope);
7453   pragma Inline (Entry_Accepted);
7454   pragma Inline (Entry_Bodies_Array);
7455   pragma Inline (Entry_Cancel_Parameter);
7456   pragma Inline (Entry_Component);
7457   pragma Inline (Entry_Formal);
7458   pragma Inline (Entry_Index_Constant);
7459   pragma Inline (Entry_Index_Type);
7460   pragma Inline (Entry_Parameters_Type);
7461   pragma Inline (Enum_Pos_To_Rep);
7462   pragma Inline (Enumeration_Pos);
7463   pragma Inline (Enumeration_Rep);
7464   pragma Inline (Enumeration_Rep_Expr);
7465   pragma Inline (Equivalent_Type);
7466   pragma Inline (Esize);
7467   pragma Inline (Exception_Code);
7468   pragma Inline (Extra_Accessibility);
7469   pragma Inline (Extra_Accessibility_Of_Result);
7470   pragma Inline (Extra_Constrained);
7471   pragma Inline (Extra_Formal);
7472   pragma Inline (Extra_Formals);
7473   pragma Inline (Finalization_Master);
7474   pragma Inline (Finalizer);
7475   pragma Inline (First_Entity);
7476   pragma Inline (First_Exit_Statement);
7477   pragma Inline (First_Index);
7478   pragma Inline (First_Literal);
7479   pragma Inline (First_Optional_Parameter);
7480   pragma Inline (First_Private_Entity);
7481   pragma Inline (First_Rep_Item);
7482   pragma Inline (Freeze_Node);
7483   pragma Inline (From_With_Type);
7484   pragma Inline (Full_View);
7485   pragma Inline (Generic_Homonym);
7486   pragma Inline (Generic_Renamings);
7487   pragma Inline (Handler_Records);
7488   pragma Inline (Has_Aliased_Components);
7489   pragma Inline (Has_Alignment_Clause);
7490   pragma Inline (Has_All_Calls_Remote);
7491   pragma Inline (Has_Anonymous_Master);
7492   pragma Inline (Has_Atomic_Components);
7493   pragma Inline (Has_Biased_Representation);
7494   pragma Inline (Has_Completion);
7495   pragma Inline (Has_Completion_In_Body);
7496   pragma Inline (Has_Complex_Representation);
7497   pragma Inline (Has_Component_Size_Clause);
7498   pragma Inline (Has_Constrained_Partial_View);
7499   pragma Inline (Has_Contiguous_Rep);
7500   pragma Inline (Has_Controlled_Component);
7501   pragma Inline (Has_Controlling_Result);
7502   pragma Inline (Has_Convention_Pragma);
7503   pragma Inline (Has_Default_Aspect);
7504   pragma Inline (Has_Delayed_Aspects);
7505   pragma Inline (Has_Delayed_Freeze);
7506   pragma Inline (Has_Discriminants);
7507   pragma Inline (Has_Dispatch_Table);
7508   pragma Inline (Has_Enumeration_Rep_Clause);
7509   pragma Inline (Has_Exit);
7510   pragma Inline (Has_External_Tag_Rep_Clause);
7511   pragma Inline (Has_Forward_Instantiation);
7512   pragma Inline (Has_Fully_Qualified_Name);
7513   pragma Inline (Has_Gigi_Rep_Item);
7514   pragma Inline (Has_Homonym);
7515   pragma Inline (Has_Implicit_Dereference);
7516   pragma Inline (Has_Independent_Components);
7517   pragma Inline (Has_Inheritable_Invariants);
7518   pragma Inline (Has_Initial_Value);
7519   pragma Inline (Has_Invariants);
7520   pragma Inline (Has_Machine_Radix_Clause);
7521   pragma Inline (Has_Master_Entity);
7522   pragma Inline (Has_Missing_Return);
7523   pragma Inline (Has_Nested_Block_With_Handler);
7524   pragma Inline (Has_Non_Standard_Rep);
7525   pragma Inline (Has_Object_Size_Clause);
7526   pragma Inline (Has_Per_Object_Constraint);
7527   pragma Inline (Has_Postconditions);
7528   pragma Inline (Has_Pragma_Controlled);
7529   pragma Inline (Has_Pragma_Elaborate_Body);
7530   pragma Inline (Has_Pragma_Inline);
7531   pragma Inline (Has_Pragma_Inline_Always);
7532   pragma Inline (Has_Pragma_No_Inline);
7533   pragma Inline (Has_Pragma_Ordered);
7534   pragma Inline (Has_Pragma_Pack);
7535   pragma Inline (Has_Pragma_Preelab_Init);
7536   pragma Inline (Has_Pragma_Pure);
7537   pragma Inline (Has_Pragma_Pure_Function);
7538   pragma Inline (Has_Pragma_Thread_Local_Storage);
7539   pragma Inline (Has_Pragma_Unmodified);
7540   pragma Inline (Has_Pragma_Unreferenced);
7541   pragma Inline (Has_Pragma_Unreferenced_Objects);
7542   pragma Inline (Has_Predicates);
7543   pragma Inline (Has_Primitive_Operations);
7544   pragma Inline (Has_Private_Ancestor);
7545   pragma Inline (Has_Private_Declaration);
7546   pragma Inline (Has_Qualified_Name);
7547   pragma Inline (Has_RACW);
7548   pragma Inline (Has_Record_Rep_Clause);
7549   pragma Inline (Has_Recursive_Call);
7550   pragma Inline (Has_Size_Clause);
7551   pragma Inline (Has_Small_Clause);
7552   pragma Inline (Has_Specified_Layout);
7553   pragma Inline (Has_Specified_Stream_Input);
7554   pragma Inline (Has_Specified_Stream_Output);
7555   pragma Inline (Has_Specified_Stream_Read);
7556   pragma Inline (Has_Specified_Stream_Write);
7557   pragma Inline (Has_Static_Discriminants);
7558   pragma Inline (Has_Storage_Size_Clause);
7559   pragma Inline (Has_Stream_Size_Clause);
7560   pragma Inline (Has_Task);
7561   pragma Inline (Has_Thunks);
7562   pragma Inline (Has_Unchecked_Union);
7563   pragma Inline (Has_Unknown_Discriminants);
7564   pragma Inline (Has_Up_Level_Access);
7565   pragma Inline (Has_Volatile_Components);
7566   pragma Inline (Has_Xref_Entry);
7567   pragma Inline (Hiding_Loop_Variable);
7568   pragma Inline (Homonym);
7569   pragma Inline (In_Package_Body);
7570   pragma Inline (In_Private_Part);
7571   pragma Inline (In_Use);
7572   pragma Inline (Integrity_Level);
7573   pragma Inline (Inner_Instances);
7574   pragma Inline (Interface_Alias);
7575   pragma Inline (Interface_Name);
7576   pragma Inline (Interfaces);
7577   pragma Inline (Is_AST_Entry);
7578   pragma Inline (Is_Abstract_Subprogram);
7579   pragma Inline (Is_Abstract_Type);
7580   pragma Inline (Is_Access_Constant);
7581   pragma Inline (Is_Access_Protected_Subprogram_Type);
7582   pragma Inline (Is_Access_Subprogram_Type);
7583   pragma Inline (Is_Access_Type);
7584   pragma Inline (Is_Ada_2005_Only);
7585   pragma Inline (Is_Ada_2012_Only);
7586   pragma Inline (Is_Aggregate_Type);
7587   pragma Inline (Is_Aliased);
7588   pragma Inline (Is_Array_Type);
7589   pragma Inline (Is_Assignable);
7590   pragma Inline (Is_Asynchronous);
7591   pragma Inline (Is_Atomic);
7592   pragma Inline (Is_Bit_Packed_Array);
7593   pragma Inline (Is_CPP_Class);
7594   pragma Inline (Is_Called);
7595   pragma Inline (Is_Character_Type);
7596   pragma Inline (Is_Child_Unit);
7597   pragma Inline (Is_Class_Wide_Equivalent_Type);
7598   pragma Inline (Is_Class_Wide_Type);
7599   pragma Inline (Is_Compilation_Unit);
7600   pragma Inline (Is_Completely_Hidden);
7601   pragma Inline (Is_Composite_Type);
7602   pragma Inline (Is_Concurrent_Body);
7603   pragma Inline (Is_Concurrent_Record_Type);
7604   pragma Inline (Is_Concurrent_Type);
7605   pragma Inline (Is_Constr_Subt_For_UN_Aliased);
7606   pragma Inline (Is_Constr_Subt_For_U_Nominal);
7607   pragma Inline (Is_Constrained);
7608   pragma Inline (Is_Constructor);
7609   pragma Inline (Is_Controlled);
7610   pragma Inline (Is_Controlling_Formal);
7611   pragma Inline (Is_Decimal_Fixed_Point_Type);
7612   pragma Inline (Is_Descendent_Of_Address);
7613   pragma Inline (Is_Digits_Type);
7614   pragma Inline (Is_Discrete_Or_Fixed_Point_Type);
7615   pragma Inline (Is_Discrete_Type);
7616   pragma Inline (Is_Discrim_SO_Function);
7617   pragma Inline (Is_Dispatch_Table_Entity);
7618   pragma Inline (Is_Dispatching_Operation);
7619   pragma Inline (Is_Elementary_Type);
7620   pragma Inline (Is_Eliminated);
7621   pragma Inline (Is_Entry);
7622   pragma Inline (Is_Entry_Formal);
7623   pragma Inline (Is_Enumeration_Type);
7624   pragma Inline (Is_Exported);
7625   pragma Inline (Is_First_Subtype);
7626   pragma Inline (Is_Fixed_Point_Type);
7627   pragma Inline (Is_Floating_Point_Type);
7628   pragma Inline (Is_For_Access_Subtype);
7629   pragma Inline (Is_Formal);
7630   pragma Inline (Is_Formal_Object);
7631   pragma Inline (Is_Formal_Subprogram);
7632   pragma Inline (Is_Frozen);
7633   pragma Inline (Is_Generic_Actual_Type);
7634   pragma Inline (Is_Generic_Instance);
7635   pragma Inline (Is_Generic_Subprogram);
7636   pragma Inline (Is_Generic_Type);
7637   pragma Inline (Is_Generic_Unit);
7638   pragma Inline (Is_Hidden);
7639   pragma Inline (Is_Hidden_Open_Scope);
7640   pragma Inline (Is_Immediately_Visible);
7641   pragma Inline (Is_Implementation_Defined);
7642   pragma Inline (Is_Imported);
7643   pragma Inline (Is_Incomplete_Or_Private_Type);
7644   pragma Inline (Is_Incomplete_Type);
7645   pragma Inline (Is_Inlined);
7646   pragma Inline (Is_Instantiated);
7647   pragma Inline (Is_Integer_Type);
7648   pragma Inline (Is_Interface);
7649   pragma Inline (Is_Internal);
7650   pragma Inline (Is_Interrupt_Handler);
7651   pragma Inline (Is_Intrinsic_Subprogram);
7652   pragma Inline (Is_Itype);
7653   pragma Inline (Is_Known_Non_Null);
7654   pragma Inline (Is_Known_Null);
7655   pragma Inline (Is_Known_Valid);
7656   pragma Inline (Is_Limited_Composite);
7657   pragma Inline (Is_Limited_Interface);
7658   pragma Inline (Is_Limited_Record);
7659   pragma Inline (Is_Local_Anonymous_Access);
7660   pragma Inline (Is_Machine_Code_Subprogram);
7661   pragma Inline (Is_Modular_Integer_Type);
7662   pragma Inline (Is_Named_Number);
7663   pragma Inline (Is_Non_Static_Subtype);
7664   pragma Inline (Is_Null_Init_Proc);
7665   pragma Inline (Is_Numeric_Type);
7666   pragma Inline (Is_Object);
7667   pragma Inline (Is_Obsolescent);
7668   pragma Inline (Is_Only_Out_Parameter);
7669   pragma Inline (Is_Optional_Parameter);
7670   pragma Inline (Is_Ordinary_Fixed_Point_Type);
7671   pragma Inline (Is_Overloadable);
7672   pragma Inline (Is_Package_Body_Entity);
7673   pragma Inline (Is_Packed);
7674   pragma Inline (Is_Packed_Array_Type);
7675   pragma Inline (Is_Potentially_Use_Visible);
7676   pragma Inline (Is_Preelaborated);
7677   pragma Inline (Is_Primitive);
7678   pragma Inline (Is_Primitive_Wrapper);
7679   pragma Inline (Is_Private_Composite);
7680   pragma Inline (Is_Private_Descendant);
7681   pragma Inline (Is_Private_Primitive);
7682   pragma Inline (Is_Private_Type);
7683   pragma Inline (Is_Processed_Transient);
7684   pragma Inline (Is_Protected_Type);
7685   pragma Inline (Is_Public);
7686   pragma Inline (Is_Pure);
7687   pragma Inline (Is_Pure_Unit_Access_Type);
7688   pragma Inline (Is_RACW_Stub_Type);
7689   pragma Inline (Is_Raised);
7690   pragma Inline (Is_Real_Type);
7691   pragma Inline (Is_Record_Type);
7692   pragma Inline (Is_Remote_Call_Interface);
7693   pragma Inline (Is_Remote_Types);
7694   pragma Inline (Is_Renaming_Of_Object);
7695   pragma Inline (Is_Return_Object);
7696   pragma Inline (Is_Safe_To_Reevaluate);
7697   pragma Inline (Is_Scalar_Type);
7698   pragma Inline (Is_Shared_Passive);
7699   pragma Inline (Is_Signed_Integer_Type);
7700   pragma Inline (Is_Statically_Allocated);
7701   pragma Inline (Is_Subprogram);
7702   pragma Inline (Is_Tag);
7703   pragma Inline (Is_Tagged_Type);
7704   pragma Inline (Is_Task_Type);
7705   pragma Inline (Is_Thunk);
7706   pragma Inline (Is_Trivial_Subprogram);
7707   pragma Inline (Is_True_Constant);
7708   pragma Inline (Is_Type);
7709   pragma Inline (Is_Unchecked_Union);
7710   pragma Inline (Is_Underlying_Record_View);
7711   pragma Inline (Is_Unsigned_Type);
7712   pragma Inline (Is_VMS_Exception);
7713   pragma Inline (Is_Valued_Procedure);
7714   pragma Inline (Is_Visible_Formal);
7715   pragma Inline (Is_Visible_Lib_Unit);
7716   pragma Inline (Itype_Printed);
7717   pragma Inline (Kill_Elaboration_Checks);
7718   pragma Inline (Kill_Range_Checks);
7719   pragma Inline (Known_To_Have_Preelab_Init);
7720   pragma Inline (Last_Assignment);
7721   pragma Inline (Last_Entity);
7722   pragma Inline (Limited_View);
7723   pragma Inline (Lit_Indexes);
7724   pragma Inline (Lit_Strings);
7725   pragma Inline (Loop_Entry_Attributes);
7726   pragma Inline (Low_Bound_Tested);
7727   pragma Inline (Machine_Radix_10);
7728   pragma Inline (Master_Id);
7729   pragma Inline (Materialize_Entity);
7730   pragma Inline (Mechanism);
7731   pragma Inline (Modulus);
7732   pragma Inline (Must_Be_On_Byte_Boundary);
7733   pragma Inline (Must_Have_Preelab_Init);
7734   pragma Inline (Needs_Debug_Info);
7735   pragma Inline (Needs_No_Actuals);
7736   pragma Inline (Never_Set_In_Source);
7737   pragma Inline (Next_Index);
7738   pragma Inline (Next_Inlined_Subprogram);
7739   pragma Inline (Next_Literal);
7740   pragma Inline (No_Pool_Assigned);
7741   pragma Inline (No_Return);
7742   pragma Inline (No_Strict_Aliasing);
7743   pragma Inline (Non_Binary_Modulus);
7744   pragma Inline (Non_Limited_View);
7745   pragma Inline (Nonzero_Is_True);
7746   pragma Inline (Normalized_First_Bit);
7747   pragma Inline (Normalized_Position);
7748   pragma Inline (Normalized_Position_Max);
7749   pragma Inline (OK_To_Rename);
7750   pragma Inline (OK_To_Reorder_Components);
7751   pragma Inline (Optimize_Alignment_Space);
7752   pragma Inline (Optimize_Alignment_Time);
7753   pragma Inline (Original_Access_Type);
7754   pragma Inline (Original_Array_Type);
7755   pragma Inline (Original_Record_Component);
7756   pragma Inline (Overlays_Constant);
7757   pragma Inline (Overridden_Operation);
7758   pragma Inline (PPC_Wrapper);
7759   pragma Inline (Package_Instantiation);
7760   pragma Inline (Packed_Array_Type);
7761   pragma Inline (Parameter_Mode);
7762   pragma Inline (Parent_Subtype);
7763   pragma Inline (Postcondition_Proc);
7764   pragma Inline (Prival);
7765   pragma Inline (Prival_Link);
7766   pragma Inline (Private_Dependents);
7767   pragma Inline (Private_View);
7768   pragma Inline (Protected_Body_Subprogram);
7769   pragma Inline (Protected_Formal);
7770   pragma Inline (Protection_Object);
7771   pragma Inline (RM_Size);
7772   pragma Inline (Reachable);
7773   pragma Inline (Referenced);
7774   pragma Inline (Referenced_As_LHS);
7775   pragma Inline (Referenced_As_Out_Parameter);
7776   pragma Inline (Refined_State);
7777   pragma Inline (Register_Exception_Call);
7778   pragma Inline (Related_Array_Object);
7779   pragma Inline (Related_Expression);
7780   pragma Inline (Related_Instance);
7781   pragma Inline (Related_Type);
7782   pragma Inline (Relative_Deadline_Variable);
7783   pragma Inline (Renamed_Entity);
7784   pragma Inline (Renamed_In_Spec);
7785   pragma Inline (Renamed_Object);
7786   pragma Inline (Renaming_Map);
7787   pragma Inline (Requires_Overriding);
7788   pragma Inline (Return_Applies_To);
7789   pragma Inline (Return_Present);
7790   pragma Inline (Returns_By_Ref);
7791   pragma Inline (Reverse_Bit_Order);
7792   pragma Inline (Reverse_Storage_Order);
7793   pragma Inline (Scalar_Range);
7794   pragma Inline (Scale_Value);
7795   pragma Inline (Scope_Depth_Value);
7796   pragma Inline (Sec_Stack_Needed_For_Return);
7797   pragma Inline (Shadow_Entities);
7798   pragma Inline (Shared_Var_Procs_Instance);
7799   pragma Inline (Size_Check_Code);
7800   pragma Inline (Size_Depends_On_Discriminant);
7801   pragma Inline (Size_Known_At_Compile_Time);
7802   pragma Inline (Small_Value);
7803   pragma Inline (Spec_Entity);
7804   pragma Inline (Static_Elaboration_Desired);
7805   pragma Inline (Static_Initialization);
7806   pragma Inline (Static_Predicate);
7807   pragma Inline (Status_Flag_Or_Transient_Decl);
7808   pragma Inline (Storage_Size_Variable);
7809   pragma Inline (Stored_Constraint);
7810   pragma Inline (Strict_Alignment);
7811   pragma Inline (String_Literal_Length);
7812   pragma Inline (String_Literal_Low_Bound);
7813   pragma Inline (Subprograms_For_Type);
7814   pragma Inline (Suppress_Elaboration_Warnings);
7815   pragma Inline (Suppress_Initialization);
7816   pragma Inline (Suppress_Style_Checks);
7817   pragma Inline (Suppress_Value_Tracking_On_Call);
7818   pragma Inline (Task_Body_Procedure);
7819   pragma Inline (Treat_As_Volatile);
7820   pragma Inline (Underlying_Full_View);
7821   pragma Inline (Underlying_Record_View);
7822   pragma Inline (Universal_Aliasing);
7823   pragma Inline (Unset_Reference);
7824   pragma Inline (Used_As_Generic_Actual);
7825   pragma Inline (Uses_Lock_Free);
7826   pragma Inline (Uses_Sec_Stack);
7827   pragma Inline (Warnings_Off);
7828   pragma Inline (Warnings_Off_Used);
7829   pragma Inline (Warnings_Off_Used_Unmodified);
7830   pragma Inline (Warnings_Off_Used_Unreferenced);
7831   pragma Inline (Was_Hidden);
7832   pragma Inline (Wrapped_Entity);
7833
7834   pragma Inline (Init_Alignment);
7835   pragma Inline (Init_Component_Bit_Offset);
7836   pragma Inline (Init_Component_Size);
7837   pragma Inline (Init_Digits_Value);
7838   pragma Inline (Init_Esize);
7839   pragma Inline (Init_RM_Size);
7840
7841   pragma Inline (Set_Abstract_States);
7842   pragma Inline (Set_Accept_Address);
7843   pragma Inline (Set_Access_Disp_Table);
7844   pragma Inline (Set_Actual_Subtype);
7845   pragma Inline (Set_Address_Taken);
7846   pragma Inline (Set_Alias);
7847   pragma Inline (Set_Alignment);
7848   pragma Inline (Set_Associated_Formal_Package);
7849   pragma Inline (Set_Associated_Node_For_Itype);
7850   pragma Inline (Set_Associated_Storage_Pool);
7851   pragma Inline (Set_Barrier_Function);
7852   pragma Inline (Set_Block_Node);
7853   pragma Inline (Set_Body_Entity);
7854   pragma Inline (Set_Body_Needed_For_SAL);
7855   pragma Inline (Set_CR_Discriminant);
7856   pragma Inline (Set_C_Pass_By_Copy);
7857   pragma Inline (Set_Can_Never_Be_Null);
7858   pragma Inline (Set_Can_Use_Internal_Rep);
7859   pragma Inline (Set_Checks_May_Be_Suppressed);
7860   pragma Inline (Set_Class_Wide_Type);
7861   pragma Inline (Set_Cloned_Subtype);
7862   pragma Inline (Set_Component_Bit_Offset);
7863   pragma Inline (Set_Component_Clause);
7864   pragma Inline (Set_Component_Size);
7865   pragma Inline (Set_Component_Type);
7866   pragma Inline (Set_Contract);
7867   pragma Inline (Set_Corresponding_Concurrent_Type);
7868   pragma Inline (Set_Corresponding_Discriminant);
7869   pragma Inline (Set_Corresponding_Equality);
7870   pragma Inline (Set_Corresponding_Protected_Entry);
7871   pragma Inline (Set_Corresponding_Record_Type);
7872   pragma Inline (Set_Corresponding_Remote_Type);
7873   pragma Inline (Set_Current_Use_Clause);
7874   pragma Inline (Set_Current_Value);
7875   pragma Inline (Set_DTC_Entity);
7876   pragma Inline (Set_DT_Entry_Count);
7877   pragma Inline (Set_DT_Offset_To_Top_Func);
7878   pragma Inline (Set_DT_Position);
7879   pragma Inline (Set_Debug_Info_Off);
7880   pragma Inline (Set_Debug_Renaming_Link);
7881   pragma Inline (Set_Default_Aspect_Component_Value);
7882   pragma Inline (Set_Default_Aspect_Value);
7883   pragma Inline (Set_Default_Expr_Function);
7884   pragma Inline (Set_Default_Expressions_Processed);
7885   pragma Inline (Set_Default_Value);
7886   pragma Inline (Set_Delay_Cleanups);
7887   pragma Inline (Set_Delay_Subprogram_Descriptors);
7888   pragma Inline (Set_Delta_Value);
7889   pragma Inline (Set_Dependent_Instances);
7890   pragma Inline (Set_Depends_On_Private);
7891   pragma Inline (Set_Digits_Value);
7892   pragma Inline (Set_Direct_Primitive_Operations);
7893   pragma Inline (Set_Directly_Designated_Type);
7894   pragma Inline (Set_Discard_Names);
7895   pragma Inline (Set_Discriminal);
7896   pragma Inline (Set_Discriminal_Link);
7897   pragma Inline (Set_Discriminant_Checking_Func);
7898   pragma Inline (Set_Discriminant_Constraint);
7899   pragma Inline (Set_Discriminant_Default_Value);
7900   pragma Inline (Set_Discriminant_Number);
7901   pragma Inline (Set_Dispatch_Table_Wrappers);
7902   pragma Inline (Set_Elaborate_Body_Desirable);
7903   pragma Inline (Set_Elaboration_Entity);
7904   pragma Inline (Set_Elaboration_Entity_Required);
7905   pragma Inline (Set_Enclosing_Scope);
7906   pragma Inline (Set_Entry_Accepted);
7907   pragma Inline (Set_Entry_Bodies_Array);
7908   pragma Inline (Set_Entry_Cancel_Parameter);
7909   pragma Inline (Set_Entry_Component);
7910   pragma Inline (Set_Entry_Formal);
7911   pragma Inline (Set_Entry_Parameters_Type);
7912   pragma Inline (Set_Enum_Pos_To_Rep);
7913   pragma Inline (Set_Enumeration_Pos);
7914   pragma Inline (Set_Enumeration_Rep);
7915   pragma Inline (Set_Enumeration_Rep_Expr);
7916   pragma Inline (Set_Equivalent_Type);
7917   pragma Inline (Set_Esize);
7918   pragma Inline (Set_Exception_Code);
7919   pragma Inline (Set_Extra_Accessibility);
7920   pragma Inline (Set_Extra_Accessibility_Of_Result);
7921   pragma Inline (Set_Extra_Constrained);
7922   pragma Inline (Set_Extra_Formal);
7923   pragma Inline (Set_Extra_Formals);
7924   pragma Inline (Set_Finalization_Master);
7925   pragma Inline (Set_Finalizer);
7926   pragma Inline (Set_First_Entity);
7927   pragma Inline (Set_First_Exit_Statement);
7928   pragma Inline (Set_First_Index);
7929   pragma Inline (Set_First_Literal);
7930   pragma Inline (Set_First_Optional_Parameter);
7931   pragma Inline (Set_First_Private_Entity);
7932   pragma Inline (Set_First_Rep_Item);
7933   pragma Inline (Set_Freeze_Node);
7934   pragma Inline (Set_From_With_Type);
7935   pragma Inline (Set_Full_View);
7936   pragma Inline (Set_Generic_Homonym);
7937   pragma Inline (Set_Generic_Renamings);
7938   pragma Inline (Set_Handler_Records);
7939   pragma Inline (Set_Has_Aliased_Components);
7940   pragma Inline (Set_Has_Alignment_Clause);
7941   pragma Inline (Set_Has_All_Calls_Remote);
7942   pragma Inline (Set_Has_Anonymous_Master);
7943   pragma Inline (Set_Has_Atomic_Components);
7944   pragma Inline (Set_Has_Biased_Representation);
7945   pragma Inline (Set_Has_Completion);
7946   pragma Inline (Set_Has_Completion_In_Body);
7947   pragma Inline (Set_Has_Complex_Representation);
7948   pragma Inline (Set_Has_Component_Size_Clause);
7949   pragma Inline (Set_Has_Constrained_Partial_View);
7950   pragma Inline (Set_Has_Contiguous_Rep);
7951   pragma Inline (Set_Has_Controlled_Component);
7952   pragma Inline (Set_Has_Controlling_Result);
7953   pragma Inline (Set_Has_Convention_Pragma);
7954   pragma Inline (Set_Has_Default_Aspect);
7955   pragma Inline (Set_Has_Delayed_Aspects);
7956   pragma Inline (Set_Has_Delayed_Freeze);
7957   pragma Inline (Set_Has_Discriminants);
7958   pragma Inline (Set_Has_Dispatch_Table);
7959   pragma Inline (Set_Has_Enumeration_Rep_Clause);
7960   pragma Inline (Set_Has_Exit);
7961   pragma Inline (Set_Has_External_Tag_Rep_Clause);
7962   pragma Inline (Set_Has_Forward_Instantiation);
7963   pragma Inline (Set_Has_Fully_Qualified_Name);
7964   pragma Inline (Set_Has_Gigi_Rep_Item);
7965   pragma Inline (Set_Has_Homonym);
7966   pragma Inline (Set_Has_Implicit_Dereference);
7967   pragma Inline (Set_Has_Independent_Components);
7968   pragma Inline (Set_Has_Inheritable_Invariants);
7969   pragma Inline (Set_Has_Initial_Value);
7970   pragma Inline (Set_Has_Invariants);
7971   pragma Inline (Set_Has_Machine_Radix_Clause);
7972   pragma Inline (Set_Has_Master_Entity);
7973   pragma Inline (Set_Has_Missing_Return);
7974   pragma Inline (Set_Has_Nested_Block_With_Handler);
7975   pragma Inline (Set_Has_Non_Standard_Rep);
7976   pragma Inline (Set_Has_Object_Size_Clause);
7977   pragma Inline (Set_Has_Per_Object_Constraint);
7978   pragma Inline (Set_Has_Postconditions);
7979   pragma Inline (Set_Has_Pragma_Controlled);
7980   pragma Inline (Set_Has_Pragma_Elaborate_Body);
7981   pragma Inline (Set_Has_Pragma_Inline);
7982   pragma Inline (Set_Has_Pragma_Inline_Always);
7983   pragma Inline (Set_Has_Pragma_No_Inline);
7984   pragma Inline (Set_Has_Pragma_Ordered);
7985   pragma Inline (Set_Has_Pragma_Pack);
7986   pragma Inline (Set_Has_Pragma_Preelab_Init);
7987   pragma Inline (Set_Has_Pragma_Pure);
7988   pragma Inline (Set_Has_Pragma_Pure_Function);
7989   pragma Inline (Set_Has_Pragma_Thread_Local_Storage);
7990   pragma Inline (Set_Has_Pragma_Unmodified);
7991   pragma Inline (Set_Has_Pragma_Unreferenced);
7992   pragma Inline (Set_Has_Pragma_Unreferenced_Objects);
7993   pragma Inline (Set_Has_Predicates);
7994   pragma Inline (Set_Has_Primitive_Operations);
7995   pragma Inline (Set_Has_Private_Ancestor);
7996   pragma Inline (Set_Has_Private_Declaration);
7997   pragma Inline (Set_Has_Qualified_Name);
7998   pragma Inline (Set_Has_RACW);
7999   pragma Inline (Set_Has_Record_Rep_Clause);
8000   pragma Inline (Set_Has_Recursive_Call);
8001   pragma Inline (Set_Has_Size_Clause);
8002   pragma Inline (Set_Has_Small_Clause);
8003   pragma Inline (Set_Has_Specified_Layout);
8004   pragma Inline (Set_Has_Specified_Stream_Input);
8005   pragma Inline (Set_Has_Specified_Stream_Output);
8006   pragma Inline (Set_Has_Specified_Stream_Read);
8007   pragma Inline (Set_Has_Specified_Stream_Write);
8008   pragma Inline (Set_Has_Static_Discriminants);
8009   pragma Inline (Set_Has_Storage_Size_Clause);
8010   pragma Inline (Set_Has_Stream_Size_Clause);
8011   pragma Inline (Set_Has_Task);
8012   pragma Inline (Set_Has_Thunks);
8013   pragma Inline (Set_Has_Unchecked_Union);
8014   pragma Inline (Set_Has_Unknown_Discriminants);
8015   pragma Inline (Set_Has_Up_Level_Access);
8016   pragma Inline (Set_Has_Volatile_Components);
8017   pragma Inline (Set_Has_Xref_Entry);
8018   pragma Inline (Set_Hiding_Loop_Variable);
8019   pragma Inline (Set_Homonym);
8020   pragma Inline (Set_In_Package_Body);
8021   pragma Inline (Set_In_Private_Part);
8022   pragma Inline (Set_In_Use);
8023   pragma Inline (Set_Inner_Instances);
8024   pragma Inline (Set_Integrity_Level);
8025   pragma Inline (Set_Interface_Alias);
8026   pragma Inline (Set_Interface_Name);
8027   pragma Inline (Set_Interfaces);
8028   pragma Inline (Set_Is_AST_Entry);
8029   pragma Inline (Set_Is_Abstract_Subprogram);
8030   pragma Inline (Set_Is_Abstract_Type);
8031   pragma Inline (Set_Is_Access_Constant);
8032   pragma Inline (Set_Is_Ada_2005_Only);
8033   pragma Inline (Set_Is_Ada_2012_Only);
8034   pragma Inline (Set_Is_Aliased);
8035   pragma Inline (Set_Is_Asynchronous);
8036   pragma Inline (Set_Is_Atomic);
8037   pragma Inline (Set_Is_Bit_Packed_Array);
8038   pragma Inline (Set_Is_CPP_Class);
8039   pragma Inline (Set_Is_Called);
8040   pragma Inline (Set_Is_Character_Type);
8041   pragma Inline (Set_Is_Child_Unit);
8042   pragma Inline (Set_Is_Class_Wide_Equivalent_Type);
8043   pragma Inline (Set_Is_Compilation_Unit);
8044   pragma Inline (Set_Is_Completely_Hidden);
8045   pragma Inline (Set_Is_Concurrent_Record_Type);
8046   pragma Inline (Set_Is_Constr_Subt_For_UN_Aliased);
8047   pragma Inline (Set_Is_Constr_Subt_For_U_Nominal);
8048   pragma Inline (Set_Is_Constrained);
8049   pragma Inline (Set_Is_Constructor);
8050   pragma Inline (Set_Is_Controlled);
8051   pragma Inline (Set_Is_Controlling_Formal);
8052   pragma Inline (Set_Is_Descendent_Of_Address);
8053   pragma Inline (Set_Is_Discrim_SO_Function);
8054   pragma Inline (Set_Is_Dispatch_Table_Entity);
8055   pragma Inline (Set_Is_Dispatching_Operation);
8056   pragma Inline (Set_Is_Eliminated);
8057   pragma Inline (Set_Is_Entry_Formal);
8058   pragma Inline (Set_Is_Exported);
8059   pragma Inline (Set_Is_First_Subtype);
8060   pragma Inline (Set_Is_For_Access_Subtype);
8061   pragma Inline (Set_Is_Formal_Subprogram);
8062   pragma Inline (Set_Is_Frozen);
8063   pragma Inline (Set_Is_Generic_Actual_Type);
8064   pragma Inline (Set_Is_Generic_Instance);
8065   pragma Inline (Set_Is_Generic_Type);
8066   pragma Inline (Set_Is_Hidden);
8067   pragma Inline (Set_Is_Hidden_Open_Scope);
8068   pragma Inline (Set_Is_Immediately_Visible);
8069   pragma Inline (Set_Is_Implementation_Defined);
8070   pragma Inline (Set_Is_Imported);
8071   pragma Inline (Set_Is_Inlined);
8072   pragma Inline (Set_Is_Instantiated);
8073   pragma Inline (Set_Is_Interface);
8074   pragma Inline (Set_Is_Internal);
8075   pragma Inline (Set_Is_Interrupt_Handler);
8076   pragma Inline (Set_Is_Intrinsic_Subprogram);
8077   pragma Inline (Set_Is_Itype);
8078   pragma Inline (Set_Is_Known_Non_Null);
8079   pragma Inline (Set_Is_Known_Null);
8080   pragma Inline (Set_Is_Known_Valid);
8081   pragma Inline (Set_Is_Limited_Composite);
8082   pragma Inline (Set_Is_Limited_Interface);
8083   pragma Inline (Set_Is_Limited_Record);
8084   pragma Inline (Set_Is_Local_Anonymous_Access);
8085   pragma Inline (Set_Is_Machine_Code_Subprogram);
8086   pragma Inline (Set_Is_Non_Static_Subtype);
8087   pragma Inline (Set_Is_Null_Init_Proc);
8088   pragma Inline (Set_Is_Obsolescent);
8089   pragma Inline (Set_Is_Only_Out_Parameter);
8090   pragma Inline (Set_Is_Optional_Parameter);
8091   pragma Inline (Set_Is_Package_Body_Entity);
8092   pragma Inline (Set_Is_Packed);
8093   pragma Inline (Set_Is_Packed_Array_Type);
8094   pragma Inline (Set_Is_Potentially_Use_Visible);
8095   pragma Inline (Set_Is_Preelaborated);
8096   pragma Inline (Set_Is_Primitive);
8097   pragma Inline (Set_Is_Primitive_Wrapper);
8098   pragma Inline (Set_Is_Private_Composite);
8099   pragma Inline (Set_Is_Private_Descendant);
8100   pragma Inline (Set_Is_Private_Primitive);
8101   pragma Inline (Set_Is_Processed_Transient);
8102   pragma Inline (Set_Is_Public);
8103   pragma Inline (Set_Is_Pure);
8104   pragma Inline (Set_Is_Pure_Unit_Access_Type);
8105   pragma Inline (Set_Is_RACW_Stub_Type);
8106   pragma Inline (Set_Is_Raised);
8107   pragma Inline (Set_Is_Remote_Call_Interface);
8108   pragma Inline (Set_Is_Remote_Types);
8109   pragma Inline (Set_Is_Renaming_Of_Object);
8110   pragma Inline (Set_Is_Return_Object);
8111   pragma Inline (Set_Is_Safe_To_Reevaluate);
8112   pragma Inline (Set_Is_Shared_Passive);
8113   pragma Inline (Set_Is_Statically_Allocated);
8114   pragma Inline (Set_Is_Tag);
8115   pragma Inline (Set_Is_Tagged_Type);
8116   pragma Inline (Set_Is_Thunk);
8117   pragma Inline (Set_Is_Trivial_Subprogram);
8118   pragma Inline (Set_Is_True_Constant);
8119   pragma Inline (Set_Is_Unchecked_Union);
8120   pragma Inline (Set_Is_Underlying_Record_View);
8121   pragma Inline (Set_Is_Unsigned_Type);
8122   pragma Inline (Set_Is_VMS_Exception);
8123   pragma Inline (Set_Is_Valued_Procedure);
8124   pragma Inline (Set_Is_Visible_Formal);
8125   pragma Inline (Set_Is_Visible_Lib_Unit);
8126   pragma Inline (Set_Is_Volatile);
8127   pragma Inline (Set_Itype_Printed);
8128   pragma Inline (Set_Kill_Elaboration_Checks);
8129   pragma Inline (Set_Kill_Range_Checks);
8130   pragma Inline (Set_Known_To_Have_Preelab_Init);
8131   pragma Inline (Set_Last_Assignment);
8132   pragma Inline (Set_Last_Entity);
8133   pragma Inline (Set_Limited_View);
8134   pragma Inline (Set_Lit_Indexes);
8135   pragma Inline (Set_Lit_Strings);
8136   pragma Inline (Set_Loop_Entry_Attributes);
8137   pragma Inline (Set_Low_Bound_Tested);
8138   pragma Inline (Set_Machine_Radix_10);
8139   pragma Inline (Set_Master_Id);
8140   pragma Inline (Set_Materialize_Entity);
8141   pragma Inline (Set_Mechanism);
8142   pragma Inline (Set_Modulus);
8143   pragma Inline (Set_Must_Be_On_Byte_Boundary);
8144   pragma Inline (Set_Must_Have_Preelab_Init);
8145   pragma Inline (Set_Needs_Debug_Info);
8146   pragma Inline (Set_Needs_No_Actuals);
8147   pragma Inline (Set_Never_Set_In_Source);
8148   pragma Inline (Set_Next_Inlined_Subprogram);
8149   pragma Inline (Set_No_Pool_Assigned);
8150   pragma Inline (Set_No_Return);
8151   pragma Inline (Set_No_Strict_Aliasing);
8152   pragma Inline (Set_Non_Binary_Modulus);
8153   pragma Inline (Set_Non_Limited_View);
8154   pragma Inline (Set_Nonzero_Is_True);
8155   pragma Inline (Set_Normalized_First_Bit);
8156   pragma Inline (Set_Normalized_Position);
8157   pragma Inline (Set_Normalized_Position_Max);
8158   pragma Inline (Set_OK_To_Rename);
8159   pragma Inline (Set_OK_To_Reorder_Components);
8160   pragma Inline (Set_Optimize_Alignment_Space);
8161   pragma Inline (Set_Optimize_Alignment_Time);
8162   pragma Inline (Set_Original_Access_Type);
8163   pragma Inline (Set_Original_Array_Type);
8164   pragma Inline (Set_Original_Record_Component);
8165   pragma Inline (Set_Overlays_Constant);
8166   pragma Inline (Set_Overridden_Operation);
8167   pragma Inline (Set_PPC_Wrapper);
8168   pragma Inline (Set_Package_Instantiation);
8169   pragma Inline (Set_Packed_Array_Type);
8170   pragma Inline (Set_Parent_Subtype);
8171   pragma Inline (Set_Postcondition_Proc);
8172   pragma Inline (Set_Prival);
8173   pragma Inline (Set_Prival_Link);
8174   pragma Inline (Set_Private_Dependents);
8175   pragma Inline (Set_Private_View);
8176   pragma Inline (Set_Protected_Body_Subprogram);
8177   pragma Inline (Set_Protected_Formal);
8178   pragma Inline (Set_Protection_Object);
8179   pragma Inline (Set_RM_Size);
8180   pragma Inline (Set_Reachable);
8181   pragma Inline (Set_Referenced);
8182   pragma Inline (Set_Referenced_As_LHS);
8183   pragma Inline (Set_Referenced_As_Out_Parameter);
8184   pragma Inline (Set_Refined_State);
8185   pragma Inline (Set_Register_Exception_Call);
8186   pragma Inline (Set_Related_Array_Object);
8187   pragma Inline (Set_Related_Expression);
8188   pragma Inline (Set_Related_Instance);
8189   pragma Inline (Set_Related_Type);
8190   pragma Inline (Set_Relative_Deadline_Variable);
8191   pragma Inline (Set_Renamed_Entity);
8192   pragma Inline (Set_Renamed_In_Spec);
8193   pragma Inline (Set_Renamed_Object);
8194   pragma Inline (Set_Renaming_Map);
8195   pragma Inline (Set_Requires_Overriding);
8196   pragma Inline (Set_Return_Applies_To);
8197   pragma Inline (Set_Return_Present);
8198   pragma Inline (Set_Returns_By_Ref);
8199   pragma Inline (Set_Reverse_Bit_Order);
8200   pragma Inline (Set_Reverse_Storage_Order);
8201   pragma Inline (Set_Scalar_Range);
8202   pragma Inline (Set_Scale_Value);
8203   pragma Inline (Set_Scope_Depth_Value);
8204   pragma Inline (Set_Sec_Stack_Needed_For_Return);
8205   pragma Inline (Set_Shadow_Entities);
8206   pragma Inline (Set_Shared_Var_Procs_Instance);
8207   pragma Inline (Set_Size_Check_Code);
8208   pragma Inline (Set_Size_Depends_On_Discriminant);
8209   pragma Inline (Set_Size_Known_At_Compile_Time);
8210   pragma Inline (Set_Small_Value);
8211   pragma Inline (Set_Spec_Entity);
8212   pragma Inline (Set_Static_Elaboration_Desired);
8213   pragma Inline (Set_Static_Initialization);
8214   pragma Inline (Set_Static_Predicate);
8215   pragma Inline (Set_Status_Flag_Or_Transient_Decl);
8216   pragma Inline (Set_Storage_Size_Variable);
8217   pragma Inline (Set_Stored_Constraint);
8218   pragma Inline (Set_Strict_Alignment);
8219   pragma Inline (Set_String_Literal_Length);
8220   pragma Inline (Set_String_Literal_Low_Bound);
8221   pragma Inline (Set_Subprograms_For_Type);
8222   pragma Inline (Set_Suppress_Elaboration_Warnings);
8223   pragma Inline (Set_Suppress_Initialization);
8224   pragma Inline (Set_Suppress_Style_Checks);
8225   pragma Inline (Set_Suppress_Value_Tracking_On_Call);
8226   pragma Inline (Set_Task_Body_Procedure);
8227   pragma Inline (Set_Treat_As_Volatile);
8228   pragma Inline (Set_Underlying_Full_View);
8229   pragma Inline (Set_Underlying_Record_View);
8230   pragma Inline (Set_Universal_Aliasing);
8231   pragma Inline (Set_Unset_Reference);
8232   pragma Inline (Set_Used_As_Generic_Actual);
8233   pragma Inline (Set_Uses_Lock_Free);
8234   pragma Inline (Set_Uses_Sec_Stack);
8235   pragma Inline (Set_Warnings_Off);
8236   pragma Inline (Set_Warnings_Off_Used);
8237   pragma Inline (Set_Warnings_Off_Used_Unmodified);
8238   pragma Inline (Set_Warnings_Off_Used_Unreferenced);
8239   pragma Inline (Set_Was_Hidden);
8240   pragma Inline (Set_Wrapped_Entity);
8241
8242   --  END XEINFO INLINES
8243
8244   --  The following Inline pragmas are *not* read by xeinfo when building
8245   --  the C version of this interface automatically (so the C version will
8246   --  end up making out of line calls). The pragma scan in xeinfo will be
8247   --  terminated on encountering the END XEINFO INLINES line. We inline
8248   --  things here which are small, but not of the canonical attribute
8249   --  access/set format that can be handled by xeinfo.
8250
8251   pragma Inline (Base_Type);
8252   pragma Inline (Is_Base_Type);
8253   pragma Inline (Is_Package_Or_Generic_Package);
8254   pragma Inline (Is_Volatile);
8255   pragma Inline (Is_Wrapper_Package);
8256   pragma Inline (Known_RM_Size);
8257   pragma Inline (Known_Static_Component_Bit_Offset);
8258   pragma Inline (Known_Static_RM_Size);
8259   pragma Inline (Scope_Depth);
8260   pragma Inline (Scope_Depth_Set);
8261   pragma Inline (Unknown_RM_Size);
8262
8263end Einfo;
8264