rust-dirstate: remove unneeded "ref"
At
7cae6bc29ff9, .to_owned() was rewritten as .to_owned().to_vec(), which
is no longer needed since the filename is a single reference.
rust-parsers: fix unboxing of PyInt on Python 3
Broken at
7cae6bc29ff9.
revlog: split `rawtext` retrieval out of _revisiondata
This part is reasonably independent. Having it on its own clarify the code flow
and will help code that inherit from revlog to overwrite specific area only.
revlog: avoid caching raw text too early in _revisiondata
Without this change, we could cache the rawtext without considering for it
validating the cache or not. If the exception raised by the invalid hash were to
be caught and the same revision accessed again, the invalid rawtext would be
returned.
revlog: move `nullid` early return sooner in `_revisiondata`
Let us deal with the special case before we start dealing with more generic
case.