If include files are used in the CUDA preprocessor tests it will cause a 
failure due to a missing header file in hosts that do not match the triple
in the test. E.g. powerpc64le have CUDA support but the include files
cannot be used for an x86 target.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@259769 91177308-0d34-0410-b5e6-96231b3b80d8