clang/test/Driver/coverage-ld.c: Tweak expressions to match dosish pathsep on win32 hosts.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@184726 91177308-0d34-0410-b5e6-96231b3b80d8
clang/unittests/ASTMatchers/Dynamic/RegistryTest.cpp: Suppress unexpected failures on MS hosts.

FIXME: A couple of tests have been suppressed.
I know it'd be bad with _MSC_VER here, though.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@184727 91177308-0d34-0410-b5e6-96231b3b80d8