Try to fix the windows build.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@183783 91177308-0d34-0410-b5e6-96231b3b80d8
Include PathV1.h in a file that uses it.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@183786 91177308-0d34-0410-b5e6-96231b3b80d8
Add a testcase for PR7434, which is a bug we no longer appear to have.


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@183787 91177308-0d34-0410-b5e6-96231b3b80d8