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

llvm-svn: 188447
diff --git a/clang/test/CodeGenCXX/cxx11-thread-local-reference.cpp b/clang/test/CodeGenCXX/cxx11-thread-local-reference.cpp
index 2ea9acd..7759d41 100644
--- a/clang/test/CodeGenCXX/cxx11-thread-local-reference.cpp
+++ b/clang/test/CodeGenCXX/cxx11-thread-local-reference.cpp
@@ -13,7 +13,7 @@
 // CHECK: call i32* @_Z1fv()
 // CHECK: store i32* %{{.*}}, i32** @r, align 8
 
-// CHECK: define i32* @_Z1gv()
+// CHECK-LABEL: define i32* @_Z1gv()
 // CHECK: call i32* @_ZTW1r()
 // CHECK: ret i32* %{{.*}}
 
@@ -22,5 +22,5 @@
 // CHECK: load i32** @r, align 8
 // CHECK: ret i32* %{{.*}}
 
-// CHECK: define internal void @__tls_init()
+// CHECK-LABEL: define internal void @__tls_init()
 // CHECK: call void @[[R_INIT]]()