Don't use PathV1.h in PerfSupport.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@184956 91177308-0d34-0410-b5e6-96231b3b80d8
Don't use PathV1.h in TransformTest.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@184958 91177308-0d34-0410-b5e6-96231b3b80d8