Switch %clang -cc1 tests to %clang_cc1

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193561 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaCXX/cxx11-gnu-attrs.cpp b/test/SemaCXX/cxx11-gnu-attrs.cpp
index f8d30a5..22d61a1 100644
--- a/test/SemaCXX/cxx11-gnu-attrs.cpp
+++ b/test/SemaCXX/cxx11-gnu-attrs.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang -cc1 -triple x86_64-unknown-unknown -std=c++11 -verify %s
+// RUN: %clang_cc1 -triple x86_64-unknown-unknown -std=c++11 -verify %s
 
 // Error cases.