Update warn base type qualifier tests

Author: lyledean1

clang/test/SemaCXX/warn-base-type-qualifiers.cpp

@@ -1,4 +1,6 @@
 // RUN: %clang_cc1 %s -std=c++11 -Wignored-base-class-qualifiers -verify
+// RUN: %clang_cc1 %s -std=c++11 -Wno-ignored-qualifiers -verify=good
+// good-no-diagnostics
 
 template <typename T> struct add_const {
   using type = const T;