Check in UnresolvedUsingDecl.

llvm-svn: 80336
diff --git a/clang/lib/AST/DeclBase.cpp b/clang/lib/AST/DeclBase.cpp
index cd5b006..28d5437 100644
--- a/clang/lib/AST/DeclBase.cpp
+++ b/clang/lib/AST/DeclBase.cpp
@@ -191,6 +191,7 @@
     case OriginalParmVar:
     case NonTypeTemplateParm:
     case Using:
+    case UnresolvedUsing:
     case ObjCMethod:
     case ObjCContainer:
     case ObjCCategory: