Missing testcase from r221581.

llvm-svn: 221582
diff --git a/clang/test/Parser/cxx1z-attributes.cpp b/clang/test/Parser/cxx1z-attributes.cpp
index 52b0a53..f57b47d 100644
--- a/clang/test/Parser/cxx1z-attributes.cpp
+++ b/clang/test/Parser/cxx1z-attributes.cpp
@@ -4,6 +4,8 @@
 namespace [[]] {}

 namespace [[]] bad = foo; // expected-error {{attributes cannot be specified on namespace alias}}

 

+namespace [[]] A::B {} // expected-error {{attributes cannot be specified on a nested namespace definition}}

+

 enum test {

   bing [[]],

   bar [[]] = 1,