commands: drop spurious r'' on dry_run in forget Fixes test-add.t on Python 3. Differential Revision: https://phab.mercurial-scm.org/D3365

tests: port inline extension in test-http-bundle1.t to py3 # skip-blame just b prefixes Differential Revision: https://phab.mercurial-scm.org/D3366

tests: add all missing b prefixes in reactor tests Both of these tests now pass on Python 3. # skip-blame just b prefixes. So many b prefixes. Differential Revision: https://phab.mercurial-scm.org/D3369

stringutil: ast.literal_eval needs a unicode on py3 Fortunately for us, this is really only used internally, so we can be lazy about the encoding here. test-wireproto-framing.py now passes on Python 3. Differential Revision: https://phab.mercurial-scm.org/D3368

scmutil: introduce shortesthexnodeidprefix() We have scmutil.resolvehexnodeidprefix() for resolving a prefix to a full nodeid, so it makes sense to have the inverse method next to it. For now it just delegates to changelog.shortest(), but it will soon also make sure it's called on the unfiltered repo, to match resolvehexnodeidprefix(). Note that the change in show.py also makes it so the conversion from revnum to nodeid is done on the filtered repo, but that should be inconsequential since the revs are all from the filtered repo anyway. Differential Revision: https://phab.mercurial-scm.org/D3370

scmutil: use resolvehexnodeidprefix() from revsymbol() I should have copied this from changectx.__init__ into in 35b34202dd3b (context: handle partial nodeids in revsymbol(), 2018-04-08). Differential Revision: https://phab.mercurial-scm.org/D3310

scmutil: rename resolvepartialhexnodeid() to resolvehexnodeidprefix() I'm going to wrap revlog.shortest() in scmutil. I plan on calling it shortesthexnodeidprefix(). resolvehexnodeidprefix() matches that better. Also, "prefix" carries more information than "partial". Differential Revision: https://phab.mercurial-scm.org/D3309