Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.
 - This is designed to make it obvious that %clang_cc1 is a "test variable"
   which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
   can be useful to redefine what gets run as 'clang -cc1' (for example, to set
   a default target).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91446 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/attr.cpp b/test/CodeGenCXX/attr.cpp
index 695e9e7..8fd8641 100644
--- a/test/CodeGenCXX/attr.cpp
+++ b/test/CodeGenCXX/attr.cpp
@@ -1,4 +1,4 @@
-// RUN: clang-cc -triple x86_64-apple-darwin -O0 -S %s -o %t.s
+// RUN: %clang_cc1 -triple x86_64-apple-darwin -O0 -S %s -o %t.s
 // RUN: FileCheck --input-file=%t.s %s
 
 int foo() __attribute__((aligned(1024)));