tests: synchronize `simplestorerevisiondelta` with modern `irevisiondelta`...
tests: synchronize `simplestorerevisiondelta` with modern `irevisiondelta`
I noticed these fields had been missing when I pasted the body of
`revlog.revlogrevisiondelta` here to pick up the correct type hints in the
previous commit. Not sure how this got out of sync, and there's probably not a
way to enforce this with Protocol either, unless the base class uses
`@abstractproperty` or something (which introduced its own trickiness for the
subclasses IIRC).
