message: Add test case for scope name regex
diff: @@ -1308,6 +1308,18 @@ class NameStackTest(test_util.TensorFlowTestCase):
  self.assertEqual("bar_2", g.unique_name("bar", mark_as_used=False))
  self.assertEqual("bar_2", g.unique_name("bar"))
  + def testBackslashRegex(self):
  + # GitHub issue 39019, all should pass
  + g = ops.Graph()
  + with g.name_scope("n_CatCntc_campaign\c_campaign"):
  + pass
  + with g.name_scope("foo"):
  + with g.name_scope("n_CatCntc_campaign\c_campaign"):
  + pass
  + with g.name_scope("n_CatCntc_campaign\c_campaign"):
  + with g.name_scope("foo"):
  + pass
  +
  @test_util.run_deprecated_v1
  def testNameAndVariableScope(self):
  with self.cached_session() as sess:
  