Check in UnresolvedUsingDecl.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@80336 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclBase.cpp b/lib/AST/DeclBase.cpp
index cd5b006..28d5437 100644
--- a/lib/AST/DeclBase.cpp
+++ b/lib/AST/DeclBase.cpp
@@ -191,6 +191,7 @@
     case OriginalParmVar:
     case NonTypeTemplateParm:
     case Using:
+    case UnresolvedUsing:
     case ObjCMethod:
     case ObjCContainer:
     case ObjCCategory: