clang/test/Tooling: Remark as XFAIL again in 5 tests for msvc hosts.

FIXME: JSON doesn't like path separator '\', on Win32 hosts.
llvm-svn: 156957
diff --git a/clang/test/Tooling/multi-jobs.cpp b/clang/test/Tooling/multi-jobs.cpp
index a2eb232..a804b40 100644
--- a/clang/test/Tooling/multi-jobs.cpp
+++ b/clang/test/Tooling/multi-jobs.cpp
@@ -2,3 +2,6 @@
 
 // CHECK: C++ requires
 invalid;
+
+// FIXME: JSON doesn't like path separator '\', on Win32 hosts.
+// XFAIL: win32