tests: stabilize test-shelve.t#phasebased for #no-symlink and #no-execbit The rev number ended up being 11 instead of 13 on Windows. If I ever get back to issue2020, this will go away.

debugdirstate: deprecate --nodates in favor of --no-dates We have supported 'no-' prefixes for boolean flag for a few years now, so I was expecting it to be --no-dates. I noticed that we have --nodates options for a few more commands (e.g. `hg diff`), but I'll leave that for another day. Differential Revision: https://phab.mercurial-scm.org/D4693

py3: fix a type error in hghave.has_hardlink test-hghave.t was failing with: feature hardlink failed: argument 1: <class 'TypeError'>: wrong type

narrow: remove hack to read narowspec from shared .hg directory This was another leftover from 576eef1ab43d (narrow: move .hg/narrowspec to .hg/store/narrowspec (BC), 2018-08-02), in addition to 623081f2abc2 (narrow: remove hack to write narrowspec to shared .hg directory, 2018-09-12). Differential Revision: https://phab.mercurial-scm.org/D4692

streamclone: reimplement nested context manager It's gone in Python 3, and you can't *ctxs into a with statement. Sigh. Differential Revision: https://phab.mercurial-scm.org/D4690

bundle2: grab kwarg using sysstr # skip-blame just an r prefix on a string Differential Revision: https://phab.mercurial-scm.org/D4691

py3: mark another passing test Differential Revision: https://phab.mercurial-scm.org/D4689