CHECK-LABEL-ify some code gen tests to improve diagnostic experience when tests fail.

llvm-svn: 188447
diff --git a/clang/test/CodeGenCXX/cxx0x-delegating-ctors.cpp b/clang/test/CodeGenCXX/cxx0x-delegating-ctors.cpp
index e909f03..c48e61f 100644
--- a/clang/test/CodeGenCXX/cxx0x-delegating-ctors.cpp
+++ b/clang/test/CodeGenCXX/cxx0x-delegating-ctors.cpp
@@ -87,7 +87,7 @@
     virtual void squawk() { other(); }
   };
 
-  // CHECK: define void @_ZN7PR145883FooC1Ev(%"class.PR14588::Foo"*
+  // CHECK-LABEL: define void @_ZN7PR145883FooC1Ev(%"class.PR14588::Foo"*
   // CHECK: call void @_ZN7PR145883FooC1EPKv(
   // CHECK: invoke void @_ZN7PR145885otherEv()
   // CHECK: call void @_ZN7PR145883FooD1Ev