48     WatchOS,  enumerator
89     case WatchOS: return true;  in isNonFragile()
123     case WatchOS:  in isGNUFamily()
148     case WatchOS: return true;  in allowsARC()
166     case WatchOS: return true;  in hasNativeARC()
200     case WatchOS:  in shouldUseARCFunctionsForRetainRelease()
236     case WatchOS:  in shouldUseRuntimeFunctionsForAlloc()
258     case WatchOS:  in shouldUseRuntimeFunctionForCombinedAllocInit()
272       case WatchOS:  in hasOptimizedSetter()
302     case WatchOS: return true;  in hasSubscripting()
330     case WatchOS:  in allowsPointerArithmetic()
352     case WatchOS: return true;  in hasTerminate()
365     case WatchOS: return true;  in hasWeakClassImport()
379     case WatchOS: return true;  in hasUnwindExceptions()
393     case WatchOS:  in hasAtomicCopyHelper()
409     case WatchOS:  in hasARCUnsafeClaimAutoreleasedReturnValue()
427     case WatchOS:  in hasEmptyCollections()
443     case WatchOS:  in allowsClassStubs()
455     case WatchOS: return true;  in allowsDirectDispatch()