typing: add annotations to the `repository.peer` mixin class...
typing: add annotations to the `repository.peer` mixin class
This was done investigating 199b0e62b403.
AFAICT, the `path` is always a `urlutil.path`, and pytype complained when I
first assumed it was bytes. `hg.peer()` also converts possible string input to
this class. But in making it `urlutil.path`, PyCharm now flags `debugwireproto`
because it passes bytes to `sshpeer.sshv1peer()`, and we do have test coverage
for that command. Curious.