2906     ASTContext &Context = getContext();  in ReadStmtFromStream()  local
2932       S = new (Context) NullStmt(Empty);  in ReadStmtFromStream()
2938       S = CompoundStmt::CreateEmpty(Context, NumStmts, HasFPFeatures);  in ReadStmtFromStream()
2944           Context,  in ReadStmtFromStream()
2949       S = new (Context) DefaultStmt(Empty);  in ReadStmtFromStream()
2953       S = new (Context) LabelStmt(Empty);  in ReadStmtFromStream()
2958         Context,  in ReadStmtFromStream()
2967       S = IfStmt::CreateEmpty(Context, HasElse, HasVar, HasInit);  in ReadStmtFromStream()
2973           Context,  in ReadStmtFromStream()
2980           Context,  in ReadStmtFromStream()
2985       S = new (Context) DoStmt(Empty);  in ReadStmtFromStream()
2989       S = new (Context) ForStmt(Empty);  in ReadStmtFromStream()
2993       S = new (Context) GotoStmt(Empty);  in ReadStmtFromStream()
2997       S = new (Context) IndirectGotoStmt(Empty);  in ReadStmtFromStream()
3001       S = new (Context) ContinueStmt(Empty);  in ReadStmtFromStream()
3005       S = new (Context) BreakStmt(Empty);  in ReadStmtFromStream()
3010           Context, /* HasNRVOCandidate=*/Record[ASTStmtReader::NumStmtFields]);  in ReadStmtFromStream()
3014       S = new (Context) DeclStmt(Empty);  in ReadStmtFromStream()
3018       S = new (Context) GCCAsmStmt(Empty);  in ReadStmtFromStream()
3022       S = new (Context) MSAsmStmt(Empty);  in ReadStmtFromStream()
3027           Context, Record[ASTStmtReader::NumStmtFields]);  in ReadStmtFromStream()
3032           Context, static_cast<ConstantResultStorageKind>(  in ReadStmtFromStream()
3037       S = SYCLUniqueStableNameExpr::CreateEmpty(Context);  in ReadStmtFromStream()
3042           Context,  in ReadStmtFromStream()
3055       S = DeclRefExpr::CreateEmpty(Context, HasQualifier, HasFoundDecl,  in ReadStmtFromStream()
3061       S = IntegerLiteral::Create(Context, Empty);  in ReadStmtFromStream()
3065       S = FixedPointLiteral::Create(Context, Empty);  in ReadStmtFromStream()
3069       S = FloatingLiteral::Create(Context, Empty);  in ReadStmtFromStream()
3073       S = new (Context) ImaginaryLiteral(Empty);  in ReadStmtFromStream()
3078           Context,  in ReadStmtFromStream()
3085       S = new (Context) CharacterLiteral(Empty);  in ReadStmtFromStream()
3089       S = new (Context) ParenExpr(Empty);  in ReadStmtFromStream()
3094           Context,  in ReadStmtFromStream()
3102       S = UnaryOperator::CreateEmpty(Context, HasFPFeatures);  in ReadStmtFromStream()
3107       S = OffsetOfExpr::CreateEmpty(Context,  in ReadStmtFromStream()
3113       S = new (Context) UnaryExprOrTypeTraitExpr(Empty);  in ReadStmtFromStream()
3117       S = new (Context) ArraySubscriptExpr(Empty);  in ReadStmtFromStream()
3121       S = new (Context) MatrixSubscriptExpr(Empty);  in ReadStmtFromStream()
3125       S = new (Context) ArraySectionExpr(Empty);  in ReadStmtFromStream()
3130           Context, Record[ASTStmtReader::NumExprFields]);  in ReadStmtFromStream()
3134       S = OMPIteratorExpr::CreateEmpty(Context,  in ReadStmtFromStream()
3143       S = CallExpr::CreateEmpty(Context, NumArgs, HasFPFeatures, Empty);  in ReadStmtFromStream()
3149           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields]);  in ReadStmtFromStream()
3158       S = MemberExpr::CreateEmpty(Context, HasQualifier, HasFoundDecl,  in ReadStmtFromStream()
3167       S = BinaryOperator::CreateEmpty(Context, HasFPFeatures);  in ReadStmtFromStream()
3175       S = CompoundAssignOperator::CreateEmpty(Context, HasFPFeatures);  in ReadStmtFromStream()
3180       S = new (Context) ConditionalOperator(Empty);  in ReadStmtFromStream()
3184       S = new (Context) BinaryConditionalOperator(Empty);  in ReadStmtFromStream()
3192       S = ImplicitCastExpr::CreateEmpty(Context, PathSize, HasFPFeatures);  in ReadStmtFromStream()
3201       S = CStyleCastExpr::CreateEmpty(Context, PathSize, HasFPFeatures);  in ReadStmtFromStream()
3206       S = new (Context) CompoundLiteralExpr(Empty);  in ReadStmtFromStream()
3210       S = new (Context) ExtVectorElementExpr(Empty);  in ReadStmtFromStream()
3214       S = new (Context) InitListExpr(Empty);  in ReadStmtFromStream()
3218       S = DesignatedInitExpr::CreateEmpty(Context,  in ReadStmtFromStream()
3224       S = new (Context) DesignatedInitUpdateExpr(Empty);  in ReadStmtFromStream()
3228       S = new (Context) ImplicitValueInitExpr(Empty);  in ReadStmtFromStream()
3232       S = new (Context) NoInitExpr(Empty);  in ReadStmtFromStream()
3236       S = new (Context) ArrayInitLoopExpr(Empty);  in ReadStmtFromStream()
3240       S = new (Context) ArrayInitIndexExpr(Empty);  in ReadStmtFromStream()
3244       S = new (Context) VAArgExpr(Empty);  in ReadStmtFromStream()
3248       S = new (Context) SourceLocExpr(Empty);  in ReadStmtFromStream()
3252       S = new (Context) EmbedExpr(Empty);  in ReadStmtFromStream()
3256       S = new (Context) AddrLabelExpr(Empty);  in ReadStmtFromStream()
3260       S = new (Context) StmtExpr(Empty);  in ReadStmtFromStream()
3264       S = new (Context) ChooseExpr(Empty);  in ReadStmtFromStream()
3268       S = new (Context) GNUNullExpr(Empty);  in ReadStmtFromStream()
3272       S = new (Context) ShuffleVectorExpr(Empty);  in ReadStmtFromStream()
3276       S = new (Context) ConvertVectorExpr(Empty);  in ReadStmtFromStream()
3280       S = new (Context) BlockExpr(Empty);  in ReadStmtFromStream()
3285           Context,  in ReadStmtFromStream()
3290       S = new (Context) ObjCStringLiteral(Empty);  in ReadStmtFromStream()
3294       S = new (Context) ObjCBoxedExpr(Empty);  in ReadStmtFromStream()
3298       S = ObjCArrayLiteral::CreateEmpty(Context,  in ReadStmtFromStream()
3303       S = ObjCDictionaryLiteral::CreateEmpty(Context,  in ReadStmtFromStream()
3309       S = new (Context) ObjCEncodeExpr(Empty);  in ReadStmtFromStream()
3313       S = new (Context) ObjCSelectorExpr(Empty);  in ReadStmtFromStream()
3317       S = new (Context) ObjCProtocolExpr(Empty);  in ReadStmtFromStream()
3321       S = new (Context) ObjCIvarRefExpr(Empty);  in ReadStmtFromStream()
3325       S = new (Context) ObjCPropertyRefExpr(Empty);  in ReadStmtFromStream()
3329       S = new (Context) ObjCSubscriptRefExpr(Empty);  in ReadStmtFromStream()
3336       S = ObjCMessageExpr::CreateEmpty(Context,  in ReadStmtFromStream()
3342       S = new (Context) ObjCIsaExpr(Empty);  in ReadStmtFromStream()
3346       S = new (Context) ObjCIndirectCopyRestoreExpr(Empty);  in ReadStmtFromStream()
3350       S = new (Context) ObjCBridgedCastExpr(Empty);  in ReadStmtFromStream()
3354       S = new (Context) ObjCForCollectionStmt(Empty);  in ReadStmtFromStream()
3358       S = new (Context) ObjCAtCatchStmt(Empty);  in ReadStmtFromStream()
3362       S = new (Context) ObjCAtFinallyStmt(Empty);  in ReadStmtFromStream()
3366       S = ObjCAtTryStmt::CreateEmpty(Context,  in ReadStmtFromStream()
3372       S = new (Context) ObjCAtSynchronizedStmt(Empty);  in ReadStmtFromStream()
3376       S = new (Context) ObjCAtThrowStmt(Empty);  in ReadStmtFromStream()
3380       S = new (Context) ObjCAutoreleasePoolStmt(Empty);  in ReadStmtFromStream()
3384       S = new (Context) ObjCBoolLiteralExpr(Empty);  in ReadStmtFromStream()
3388       S = new (Context) ObjCAvailabilityCheckExpr(Empty);  in ReadStmtFromStream()
3392       S = new (Context) SEHLeaveStmt(Empty);  in ReadStmtFromStream()
3396       S = new (Context) SEHExceptStmt(Empty);  in ReadStmtFromStream()
3400       S = new (Context) SEHFinallyStmt(Empty);  in ReadStmtFromStream()
3404       S = new (Context) SEHTryStmt(Empty);  in ReadStmtFromStream()
3408       S = new (Context) CXXCatchStmt(Empty);  in ReadStmtFromStream()
3412       S = CXXTryStmt::Create(Context, Empty,  in ReadStmtFromStream()
3417       S = new (Context) CXXForRangeStmt(Empty);  in ReadStmtFromStream()
3421       S = new (Context) MSDependentExistsStmt(SourceLocation(), true,  in ReadStmtFromStream()
3428       S = OMPCanonicalLoop::createEmpty(Context);  in ReadStmtFromStream()
3433           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3438         OMPParallelDirective::CreateEmpty(Context,  in ReadStmtFromStream()
3446       S = OMPSimdDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3454       S = OMPTileDirective::CreateEmpty(Context, NumClauses, NumLoops);  in ReadStmtFromStream()
3461       S = OMPUnrollDirective::CreateEmpty(Context, NumClauses);  in ReadStmtFromStream()
3470       S = OMPReverseDirective::CreateEmpty(Context);  in ReadStmtFromStream()
3477       S = OMPInterchangeDirective::CreateEmpty(Context, NumClauses, NumLoops);  in ReadStmtFromStream()
3484       S = OMPForDirective::CreateEmpty(Context, NumClauses, CollapsedNum,  in ReadStmtFromStream()
3492       S = OMPForSimdDirective::CreateEmpty(Context, NumClauses, CollapsedNum,  in ReadStmtFromStream()
3499           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3503       S = OMPSectionDirective::CreateEmpty(Context, Empty);  in ReadStmtFromStream()
3508           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3513           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3517       S = OMPMasterDirective::CreateEmpty(Context, Empty);  in ReadStmtFromStream()
3522           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3528       S = OMPParallelForDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3536       S = OMPParallelForSimdDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3543           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3548           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3553           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3558           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3562       S = OMPTaskyieldDirective::CreateEmpty(Context, Empty);  in ReadStmtFromStream()
3566       S = OMPBarrierDirective::CreateEmpty(Context, Empty);  in ReadStmtFromStream()
3571           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3576           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3581           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3586           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3591           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3596           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3602       S = OMPOrderedDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3609           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3614           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3619           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3624           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3629           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3634           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3640       S = OMPTargetParallelForDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3647           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3652           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3656       S = OMPCancellationPointDirective::CreateEmpty(Context, Empty);  in ReadStmtFromStream()
3661           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3667       S = OMPTaskLoopDirective::CreateEmpty(Context, NumClauses, CollapsedNum,  in ReadStmtFromStream()
3675       S = OMPTaskLoopSimdDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3683       S = OMPMasterTaskLoopDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3691       S = OMPMaskedTaskLoopDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3699       S = OMPMasterTaskLoopSimdDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3707       S = OMPMaskedTaskLoopSimdDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3715       S = OMPParallelMasterTaskLoopDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3723       S = OMPParallelMaskedTaskLoopDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3732           Context, NumClauses, CollapsedNum, Empty);  in ReadStmtFromStream()
3740           Context, NumClauses, CollapsedNum, Empty);  in ReadStmtFromStream()
3747       S = OMPDistributeDirective::CreateEmpty(Context, NumClauses, CollapsedNum,  in ReadStmtFromStream()
3755       S = OMPDistributeParallelForDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3763       S = OMPDistributeParallelForSimdDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3772       S = OMPDistributeSimdDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3780       S = OMPTargetParallelForSimdDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3788       S = OMPTargetSimdDirective::CreateEmpty(Context, NumClauses, CollapsedNum,  in ReadStmtFromStream()
3796        S = OMPTeamsDistributeDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3804       S = OMPTeamsDistributeSimdDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3813           Context, NumClauses, CollapsedNum, Empty);  in ReadStmtFromStream()
3821           Context, NumClauses, CollapsedNum, Empty);  in ReadStmtFromStream()
3827           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3833       S = OMPTargetTeamsDistributeDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3842           Context, NumClauses, CollapsedNum, Empty);  in ReadStmtFromStream()
3850           Context, NumClauses, CollapsedNum, Empty);  in ReadStmtFromStream()
3858           Context, NumClauses, CollapsedNum, Empty);  in ReadStmtFromStream()
3864           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3869           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3874           Context, Record[ASTStmtReader::NumStmtFields], Empty);  in ReadStmtFromStream()
3880       S = OMPGenericLoopDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3888       S = OMPTeamsGenericLoopDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3896       S = OMPTargetTeamsGenericLoopDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3904       S = OMPParallelGenericLoopDirective::CreateEmpty(Context, NumClauses,  in ReadStmtFromStream()
3913           Context, NumClauses, CollapsedNum, Empty);  in ReadStmtFromStream()
3922       S = CXXOperatorCallExpr::CreateEmpty(Context, NumArgs, HasFPFeatures,  in ReadStmtFromStream()
3932       S = CXXMemberCallExpr::CreateEmpty(Context, NumArgs, HasFPFeatures,  in ReadStmtFromStream()
3938       S = new (Context) CXXRewrittenBinaryOperator(Empty);  in ReadStmtFromStream()
3943           Context,  in ReadStmtFromStream()
3948       S = new (Context) CXXInheritedCtorInitExpr(Empty);  in ReadStmtFromStream()
3953           Context,  in ReadStmtFromStream()
3962       S = CXXStaticCastExpr::CreateEmpty(Context, PathSize, HasFPFeatures);  in ReadStmtFromStream()
3968       S = CXXDynamicCastExpr::CreateEmpty(Context, PathSize);  in ReadStmtFromStream()
3974       S = CXXReinterpretCastExpr::CreateEmpty(Context, PathSize);  in ReadStmtFromStream()
3979       S = CXXConstCastExpr::CreateEmpty(Context);  in ReadStmtFromStream()
3983       S = CXXAddrspaceCastExpr::CreateEmpty(Context);  in ReadStmtFromStream()
3991       S = CXXFunctionalCastExpr::CreateEmpty(Context, PathSize, HasFPFeatures);  in ReadStmtFromStream()
4000       S = new (Context) BuiltinBitCastExpr(Empty);  in ReadStmtFromStream()
4009       S = UserDefinedLiteral::CreateEmpty(Context, NumArgs, HasFPFeatures,  in ReadStmtFromStream()
4015       S = new (Context) CXXStdInitializerListExpr(Empty);  in ReadStmtFromStream()
4019       S = new (Context) CXXBoolLiteralExpr(Empty);  in ReadStmtFromStream()
4023       S = new (Context) CXXNullPtrLiteralExpr(Empty);  in ReadStmtFromStream()
4027       S = new (Context) CXXTypeidExpr(Empty, true);  in ReadStmtFromStream()
4031       S = new (Context) CXXTypeidExpr(Empty, false);  in ReadStmtFromStream()
4035       S = new (Context) CXXUuidofExpr(Empty, true);  in ReadStmtFromStream()
4039       S = new (Context) MSPropertyRefExpr(Empty);  in ReadStmtFromStream()
4043       S = new (Context) MSPropertySubscriptExpr(Empty);  in ReadStmtFromStream()
4047       S = new (Context) CXXUuidofExpr(Empty, false);  in ReadStmtFromStream()
4051       S = CXXThisExpr::CreateEmpty(Context);  in ReadStmtFromStream()
4055       S = new (Context) CXXThrowExpr(Empty);  in ReadStmtFromStream()
4060           Context, /*HasRewrittenInit=*/Record[ASTStmtReader::NumExprFields]);  in ReadStmtFromStream()
4065           Context, /*HasRewrittenInit=*/Record[ASTStmtReader::NumExprFields]);  in ReadStmtFromStream()
4069       S = new (Context) CXXBindTemporaryExpr(Empty);  in ReadStmtFromStream()
4073       S = new (Context) CXXScalarValueInitExpr(Empty);  in ReadStmtFromStream()
4078           Context,  in ReadStmtFromStream()
4086       S = new (Context) CXXDeleteExpr(Empty);  in ReadStmtFromStream()
4090       S = new (Context) CXXPseudoDestructorExpr(Empty);  in ReadStmtFromStream()
4094       S = ExprWithCleanups::Create(Context, Empty,  in ReadStmtFromStream()
4107           Context, HasTemplateKWAndArgsInfo, NumTemplateArgs,  in ReadStmtFromStream()
4122           Context, HasTemplateKWAndArgsInfo, NumTemplateArgs);  in ReadStmtFromStream()
4127       S = CXXUnresolvedConstructExpr::CreateEmpty(Context,  in ReadStmtFromStream()
4139           Context, NumResults, HasTemplateKWAndArgsInfo, NumTemplateArgs);  in ReadStmtFromStream()
4151           Context, NumResults, HasTemplateKWAndArgsInfo, NumTemplateArgs);  in ReadStmtFromStream()
4156       S = TypeTraitExpr::CreateDeserialized(Context,  in ReadStmtFromStream()
4161       S = new (Context) ArrayTypeTraitExpr(Empty);  in ReadStmtFromStream()
4165       S = new (Context) ExpressionTraitExpr(Empty);  in ReadStmtFromStream()
4169       S = new (Context) CXXNoexceptExpr(Empty);  in ReadStmtFromStream()
4173       S = new (Context) PackExpansionExpr(Empty);  in ReadStmtFromStream()
4178               Context,  in ReadStmtFromStream()
4184           Context,  in ReadStmtFromStream()
4189       S = new (Context) SubstNonTypeTemplateParmExpr(Empty);  in ReadStmtFromStream()
4193       S = new (Context) SubstNonTypeTemplateParmPackExpr(Empty);  in ReadStmtFromStream()
4197       S = FunctionParmPackExpr::CreateEmpty(Context,  in ReadStmtFromStream()
4202       S = new (Context) MaterializeTemporaryExpr(Empty);  in ReadStmtFromStream()
4206       S = new (Context) CXXFoldExpr(Empty);  in ReadStmtFromStream()
4211           Context, /*numExprs=*/Record[ASTStmtReader::NumExprFields], Empty);  in ReadStmtFromStream()
4215       S = new (Context) OpaqueValueExpr(Empty);  in ReadStmtFromStream()
4223       S = CUDAKernelCallExpr::CreateEmpty(Context, NumArgs, HasFPFeatures,  in ReadStmtFromStream()
4229       S = new (Context) AsTypeExpr(Empty);  in ReadStmtFromStream()
4234       S = PseudoObjectExpr::Create(Context, Empty, numSemanticExprs);  in ReadStmtFromStream()
4239       S = new (Context) AtomicExpr(Empty);  in ReadStmtFromStream()
4244       S = LambdaExpr::CreateDeserialized(Context, NumCaptures);  in ReadStmtFromStream()
4250       S = CoroutineBodyStmt::Create(Context, Empty, NumParams);  in ReadStmtFromStream()
4255       S = new (Context) CoreturnStmt(Empty);  in ReadStmtFromStream()
4259       S = new (Context) CoawaitExpr(Empty);  in ReadStmtFromStream()
4263       S = new (Context) CoyieldExpr(Empty);  in ReadStmtFromStream()
4267       S = new (Context) DependentCoawaitExpr(Empty);  in ReadStmtFromStream()
4271       S = new (Context) ConceptSpecializationExpr(Empty);  in ReadStmtFromStream()
4276       S = OpenACCComputeConstruct::CreateEmpty(Context, NumClauses);  in ReadStmtFromStream()
4281       S = OpenACCLoopConstruct::CreateEmpty(Context, NumClauses);  in ReadStmtFromStream()
4287       S = RequiresExpr::Create(Context, Empty, numLocalParameters,  in ReadStmtFromStream()