test/Tooling/clang-check-pwd.cpp: Mark as XFAIL:mingw for now. Fixing is work-in-progress.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157170 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Tooling/clang-check-pwd.cpp b/test/Tooling/clang-check-pwd.cpp
index a8047a9..96417df 100644
--- a/test/Tooling/clang-check-pwd.cpp
+++ b/test/Tooling/clang-check-pwd.cpp
@@ -9,3 +9,4 @@
 invalid;
 
 // REQUIRES: shell
+// XFAIL: mingw32