tests: port test-dispatch.py to Python 3 Differential Revision: https://phab.mercurial-scm.org/D3511

tests: port test-wireproto.py to Python 3 A little bit of output churn because we now get b'' prefixes on output in both 2 and 3, but for this test I'm more comfortable knowing that we're using bytestrs everywhere. Differential Revision: https://phab.mercurial-scm.org/D3510

tests: port test-context.py to Python 3 This is a weird "minimally invasive" port. I think there's room to do better here, but I'm also not sure how often we'll touch this code... Differential Revision: https://phab.mercurial-scm.org/D3509

scmutil: fix __repr__ of status tuple We should probably start giving some thought to migrating the status tuple to attrs, but not now. Differential Revision: https://phab.mercurial-scm.org/D3508

update: print warning about hidden changeset after update When an attempt to update to a hidden changeset fails because the working copy is dirty, you may get a message like this: updating to a hidden changeset 343f6de32686 (hidden revision '343f6de32686' was rewritten as: 4ab941244072) abort: conflicting changes (commit or update --clean to discard changes) It's easy to miss the real error here. This patch moves the warning about the hidden changeset to after the update has happened. It changes the verb tense accordingly (and drops the "a" that I think it sounds better without). Of course, this means that the commit isn't actually hidden anymore when the message is printed. I think that's fine. Differential Revision: https://phab.mercurial-scm.org/D3479

py3: whitelist three passing cvs convert tests Differential Revision: https://phab.mercurial-scm.org/D3490