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


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@188447 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/mangle-subst.cpp b/test/CodeGenCXX/mangle-subst.cpp
index d83a081..30360ae 100644
--- a/test/CodeGenCXX/mangle-subst.cpp
+++ b/test/CodeGenCXX/mangle-subst.cpp
@@ -2,19 +2,19 @@
 
 struct X {};
 
-// CHECK: define void @_Z1f1XS_(
+// CHECK-LABEL: define void @_Z1f1XS_(
 void f(X, X) { }
 
-// CHECK: define void @_Z1fR1XS0_(
+// CHECK-LABEL: define void @_Z1fR1XS0_(
 void f(X&, X&) { }
 
-// CHECK: define void @_Z1fRK1XS1_(
+// CHECK-LABEL: define void @_Z1fRK1XS1_(
 void f(const X&, const X&) { }
 
 typedef void T();
 struct S {};
 
-// CHECK: define void @_Z1fPFvvEM1SFvvE(
+// CHECK-LABEL: define void @_Z1fPFvvEM1SFvvE(
 void f(T*, T (S::*)) {}
 
 namespace A {
@@ -22,14 +22,14 @@
   struct B { };
 };
 
-// CHECK: define void @_Z1fN1A1AENS_1BE(
+// CHECK-LABEL: define void @_Z1fN1A1AENS_1BE(
 void f(A::A a, A::B b) { }
 
 struct C {
   struct D { };
 };
 
-// CHECK: define void @_Z1fN1C1DERS_PS_S1_(
+// CHECK-LABEL: define void @_Z1fN1C1DERS_PS_S1_(
 void f(C::D, C&, C*, C&) { }
 
 template<typename T>