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

llvm-svn: 188447
diff --git a/clang/test/CodeGenCXX/member-function-pointers.cpp b/clang/test/CodeGenCXX/member-function-pointers.cpp
index 23a7b00..fb06fa7 100644
--- a/clang/test/CodeGenCXX/member-function-pointers.cpp
+++ b/clang/test/CodeGenCXX/member-function-pointers.cpp
@@ -229,7 +229,7 @@
     fooptr p;
   };
 
-  // CODE-LP64:    define void @_ZN5test94testEv(
+  // CODE-LP64-LABEL:    define void @_ZN5test94testEv(
   // CODE-LP64:      alloca i32
   // CODE-LP64-NEXT: ret void
   void test() {