tests/testlib/ext-phase-report.py

archival: force a `CompressionError` to bytes before passing to `error.Abort`

I'm not sure what changed before pytype 09-09-2021 (from 04-15-2021), but this
started getting flagged.

This fixes:

    File "/mnt/c/Users/Matt/hg/mercurial/archival.py", line 199, in taropen: Function bytestr.__init__ was called with the wrong arguments [wrong-arg-types]
             Expected: (self, ints: Iterable[int])
      Actually passed: (self, ints: tarfile.CompressionError)
      Attributes of protocol Iterable[int] are not implemented on tarfile.CompressionError: __iter__

Differential Revision: https://phab.mercurial-scm.org/D11472

# tiny extension to report phase changes during transaction

from __future__ import absolute_import


def reposetup(ui, repo):
    def reportphasemove(tr):
        for revs, move in sorted(tr.changes[b"phases"], key=lambda r: r[0][0]):
            for rev in revs:
                if move[0] is None:
                    ui.write(
                        (
                            b'test-debug-phase: new rev %d:  x -> %d\n'
                            % (rev, move[1])
                        )
                    )
                else:
                    ui.write(
                        (
                            b'test-debug-phase: move rev %d: %d -> %d\n'
                            % (rev, move[0], move[1])
                        )
                    )

    class reportphaserepo(repo.__class__):
        def transaction(self, *args, **kwargs):
            tr = super(reportphaserepo, self).transaction(*args, **kwargs)
            tr.addpostclose(b'report-phase', reportphasemove)
            return tr

    repo.__class__ = reportphaserepo