Fix crash when a decltype expression in a trailing return type refers to the
function being instantiated. An error recovery codepath was recursively
performing name lookup (and triggering an unbounded stack of template
instantiations which blew out the stack before hitting the depth limit).
Patch by Wei Pan!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164586 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/Sema.cpp b/lib/Sema/Sema.cpp
index bd7c851..08ccfa4 100644
--- a/lib/Sema/Sema.cpp
+++ b/lib/Sema/Sema.cpp
@@ -90,6 +90,7 @@
CollectStats(false), ExternalSource(0), CodeCompleter(CodeCompleter),
CurContext(0), OriginalLexicalContext(0),
PackContext(0), MSStructPragmaOn(false), VisContext(0),
+ IsBuildingRecoveryCallExpr(false),
ExprNeedsCleanups(false), LateTemplateParser(0), OpaqueParser(0),
IdResolver(pp), StdInitializerList(0), CXXTypeInfoDecl(0), MSVCGuidDecl(0),
NSNumberDecl(0),