Make test_module_with_large_stack as an expected failure because of a change in

importlib that is causing it to fail. Work to fix it is being tracked in issue
8727.

Lib/test/test_import.py

@@ -142,6 +142,7 @@ class ImportTests(unittest.TestCase):
             self.assertIs(orig_path, new_os.path)
             self.assertIsNot(orig_getenv, new_os.getenv)
 
+    @unittest.expectedFailure  # Issue 8727 is tracking the fix.
     def test_module_with_large_stack(self, module='longlist'):
         # Regression test for http://bugs.python.org/issue561858.
         filename = module + '.py'