Mark unsupported tests

Lib/test/test_with.py

@@ -109,6 +109,7 @@ class FailureTestCase(unittest.TestCase):
             with foo: pass
         self.assertRaises(NameError, fooNotDeclared)
 
+    @unittest.skip("TODO: RUSTPYTHON")
     def testEnterAttributeError1(self):
         class LacksEnter(object):
             def __exit__(self, type, value, traceback):
@@ -119,6 +120,8 @@ class FailureTestCase(unittest.TestCase):
             with foo: pass
         self.assertRaisesRegex(AttributeError, '__enter__', fooLacksEnter)
 
+    # TODO: RUSTPYTHON
+    @unittest.expectedFailure
     def testEnterAttributeError2(self):
         class LacksEnterAndExit(object):
             pass
@@ -726,6 +729,7 @@ class NestedWith(unittest.TestCase):
         self.assertTrue(a.enter_called)
         self.assertTrue(a.exit_called)
 
+    @unittest.skip("TODO: RUSTPYTHON")
     def testExceptionInExit(self):
         body_executed = False
         with self.Dummy(gobble=True) as a, self.ExitRaises():