Reland 'Add VFS support for sanitizers' blacklist'

The original patch broke the test for Windows.
Trying to fix as per Reid's suggestions outlined here:
https://reviews.llvm.org/rC371663

Differential Revision: https://reviews.llvm.org/D67742

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@374006 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed