Give %itanium_abi_triple to the test to appease targeting msvc.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@202803 91177308-0d34-0410-b5e6-96231b3b80d8
We now require Visual C++ 2012 (MSVC_VERSION = 1700) or later to build LLVM.



git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@202804 91177308-0d34-0410-b5e6-96231b3b80d8