message: Enable test cases for complex128 with tf.as_string
diff: @@ -160,7 +160,7 @@ class AsStringOpTest(test.TestCase):
  complex_inputs_ = [(x + (x + 1) * 1j) for x in float_inputs_]
  with self.test_session():
  - for dtype in (dtypes.complex64,):
  + for dtype in (dtypes.complex64, dtypes.complex128):
  input_ = array_ops.placeholder(dtype)
  def clean_nans(s_l):
  