In the case of mangling collisions, make an attempt to note both definitions
involved.

llvm-svn: 214606
diff --git a/clang/test/CodeGenCXX/duplicate-mangled-name.cpp b/clang/test/CodeGenCXX/duplicate-mangled-name.cpp
index 65bfa22..e57012e 100644
--- a/clang/test/CodeGenCXX/duplicate-mangled-name.cpp
+++ b/clang/test/CodeGenCXX/duplicate-mangled-name.cpp
@@ -4,7 +4,7 @@
 class MyClass {
  static void meth();
 };
-void MyClass::meth() { }
+void MyClass::meth() { } // expected-note {{previous}}
 extern "C" {
   void _ZN7MyClass4methEv() { } // expected-error {{definition with same mangled name as another definition}}
 }