Force triple for test.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84589 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGenCXX/references.cpp

@@ -1,4 +1,4 @@
-// RUN: clang-cc -verify -emit-llvm -o - %s | FileCheck %s
+// RUN: clang-cc -triple x86_64-apple-darwin -verify -emit-llvm -o - %s | FileCheck %s
 
 void t1() {
   extern int& a;