When performing name lookup into a scope, check that its entity is
non-NULL before looking at the entity itself.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93199 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaLookup.cpp b/lib/Sema/SemaLookup.cpp
index a8c2366..bff7881 100644
--- a/lib/Sema/SemaLookup.cpp
+++ b/lib/Sema/SemaLookup.cpp
@@ -648,7 +648,7 @@
 
   for (; S; S = S->getParent()) {
     DeclContext *Ctx = static_cast<DeclContext *>(S->getEntity());
-    if (Ctx->isTransparentContext())
+    if (!Ctx || Ctx->isTransparentContext())
       continue;
 
     assert(Ctx && Ctx->isFileContext() &&