Use -emit-llvm-only in the test.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114636 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGenCXX/warn-padded-packed.cpp

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple=x86_64-none-none -Wpadded -Wpacked -verify %s -emit-llvm -o %t
+// RUN: %clang_cc1 -triple=x86_64-none-none -Wpadded -Wpacked -verify %s -emit-llvm-only
 
 struct S1 {
   char c;