[PATCH 1 of 9 V2] mdiff: remove use of __slots__

[Pierre-Yves David]

On 06/25/2016 11:11 PM, Gregory Szorc wrote:
> # HG changeset patch
> # User Gregory Szorc <gregory.szorc at gmail.com>
> # Date 1466887966 25200
> #      Sat Jun 25 13:52:46 2016 -0700
> # Node ID 8f5c54d6463b184fc337d524e3ad96cc6eb569d6
> # Parent  591a8069b60e16f2331a53e9c608c37e14be6947
> mdiff: remove use of __slots__

Pushed patch 1 only as patch two requires some deeper review.
I feel like patch 3-9 could come before patch 2. That would probably
reduce the error churn while still producing valide code. Am I right?

I don't think our important should push the magic too far so not
detecting encode and decode seems the sensible path to take here.

-- 
Pierre-Yves David