Disable Kaleidoscope tests on Win32 -- looks like they're still failing there.

The Kaleidoscope tests were re-enabled in r354630, but are still failing on
Windows. This patch disables them on that platform until the failure can be
investigated.

llvm-svn: 354645
diff --git a/llvm/test/Examples/lit.local.cfg b/llvm/test/Examples/lit.local.cfg
index 69bc11e..21d227c 100644
--- a/llvm/test/Examples/lit.local.cfg
+++ b/llvm/test/Examples/lit.local.cfg
@@ -1,2 +1,2 @@
-if not config.build_examples:
+if not config.build_examples and not sys.platform in ['win32']:
   config.unsupported = True
\ No newline at end of file