Summary:
Reworked test case after buildbot failure on windows.

This patch adds base support for codegen of the target directive on the NVPTX device.

Reviewers: ABataev

Differential Revision: http://reviews.llvm.org/D17877



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263783 91177308-0d34-0410-b5e6-96231b3b80d8