Update tests in preparation for using the MS ABI for Win32 targets

In preparation for making the Win32 triple imply MS ABI mode,
make all tests pass in this mode, or make them use the Itanium
mode explicitly.

Differential Revision: http://llvm-reviews.chandlerc.com/D2401

llvm-svn: 199130
diff --git a/clang/test/CodeGen/builtin-ms-noop.cpp b/clang/test/CodeGen/builtin-ms-noop.cpp
index 7c5068d..b0987cc 100644
--- a/clang/test/CodeGen/builtin-ms-noop.cpp
+++ b/clang/test/CodeGen/builtin-ms-noop.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fms-extensions -triple i686-pc-win32 -emit-llvm %s -o - | FileCheck %s
+// RUN: %clang_cc1 -fms-extensions -triple i686-pc-win32 -cxx-abi itanium -emit-llvm %s -o - | FileCheck %s
 
 class A {
  public:
@@ -11,4 +11,3 @@
 // CHECK: ret void
   __noop(A());
 };
-