Fix PR8884 by skipping transparent contexts. The test is for LikageSpec. I
failed to find a case where an enum context would make a difference, but
found PR9007 on the way.

llvm-svn: 123871
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 6bbbd54..d28548d 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -5991,7 +5991,7 @@
       // Find the context where we'll be declaring the tag.
       // FIXME: We would like to maintain the current DeclContext as the
       // lexical context,
-      while (SearchDC->isRecord())
+      while (SearchDC->isRecord() || SearchDC->isTransparentContext())
         SearchDC = SearchDC->getParent();
 
       // Find the scope where we'll be declaring the tag.