closes bpo-33758: Skip test_get_type_hints_modules_forwardref. (GH-13977)

This test "works" if things are run in the right order, so it's better to use @skip than @expectedFailure here.
(cherry picked from commit 910b3fcb01)

Co-authored-by: Benjamin Peterson <benjamin@python.org>

Lib/test/test_typing.py

@@ -3,7 +3,7 @@ import collections
 import pickle
 import re
 import sys
-from unittest import TestCase, main, skipUnless, SkipTest, expectedFailure
+from unittest import TestCase, main, skipUnless, SkipTest, skip
 from copy import copy, deepcopy
 
 from typing import Any, NoReturn
@@ -1804,7 +1804,7 @@ class GetTypeHintTests(BaseTestCase):
         self.assertEqual(gth(ann_module2), {})
         self.assertEqual(gth(ann_module3), {})
 
-    @expectedFailure
+    @skip("known bug")
     def test_get_type_hints_modules_forwardref(self):
         # FIXME: This currently exposes a bug in typing. Cached forward references
         # don't account for the case where there are multiple types of the same