Frontend: Sprinkle in some C++ header paths for ARM/Darwin. Also, don't add x86
paths on non-x86.

I really detest this file.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104921 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed