Add a testcase we were already getting right, but were not testing for.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155302 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/visibility.cpp b/test/CodeGenCXX/visibility.cpp
index 4b31918..808b7ff 100644
--- a/test/CodeGenCXX/visibility.cpp
+++ b/test/CodeGenCXX/visibility.cpp
@@ -631,3 +631,16 @@
   // CHECK: define void @_ZN6test261CIiE1fEv
   // CHECK-HIDDEN: define void @_ZN6test261CIiE1fEv
 }
+
+namespace test31 {
+  struct A {
+    struct HIDDEN B {
+      static void DEFAULT baz();
+    };
+  };
+  void f() {
+    A::B::baz();
+  }
+  // CHECK: declare void @_ZN6test311A1B3bazEv()
+  // CHECK-HIDDEN: declare void @_ZN6test311A1B3bazEv()
+}