Name lookup should know better than to look into a class before it's defined

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93217 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 1 deletions

diff --git a/lib/Sema/SemaLookup.cpp b/lib/Sema/SemaLookup.cpp
index bff7881eb6..0ab01fe7f5 100644
--- a/lib/Sema/SemaLookup.cpp
+++ b/lib/Sema/SemaLookup.cpp
@@ -460,7 +460,9 @@ static bool LookupDirect(LookupResult &R, const DeclContext *DC) {
     //   name lookup. Instead, any conversion function templates visible in the
     //   context of the use are considered. [...]
     const CXXRecordDecl *Record = cast<CXXRecordDecl>(DC);
-    
+    if (!Record->isDefinition())
+      return Found;
+
     const UnresolvedSet *Unresolved = Record->getConversionFunctions();
     for (UnresolvedSet::iterator U = Unresolved->begin(), 
                               UEnd = Unresolved->end();