Fix lookup bug

llvm-svn: 67964
diff --git a/clang/test/SemaCXX/namespace-alias.cpp b/clang/test/SemaCXX/namespace-alias.cpp
index b05db5f..87e8b2c 100644
--- a/clang/test/SemaCXX/namespace-alias.cpp
+++ b/clang/test/SemaCXX/namespace-alias.cpp
@@ -21,3 +21,7 @@
   using namespace A;
   namespace D = B; // expected-error {{reference to 'B' is ambiguous}}
 }
+
+namespace G { 
+  namespace B = N;
+}