message: add output_type to tf.data.RangeDataset, fix
diff: @@ -884,8 +884,6 @@ class DatasetV2(tracking_base.Trackable, composite_tensor.CompositeTensor):
  []
  >>> list(Dataset.range(5, 1, -2).as_numpy_iterator())
  [5, 3]
  - >>> list(Dataset.range(5, output_type=tf.int32).as_numpy_iterator())
  - [0, 1, 2, 3, 4]
  >>> list(Dataset.range(2, 5, output_type=tf.int32).as_numpy_iterator())
  [2, 3, 4]
  >>> list(Dataset.range(1, 5, 2, output_type=tf.float32).as_numpy_iterator())
  