walkchangerevs: obey allfiles parameter when taking the slow path When walkchangerevs sees that there's a pattern, it hits the slow path. The slow path in turn reverts to the old dumb grep behaviour of only looking at files changed at each revision. Therefore, a command such as hg grep -l --all-files '.*' 'glob:**' would show you all the nonempty files touched by the current revision. This modifies that behaviour to look at the manifest at each revision instead of the changed files in case that --all-files was requested.

test: stabilize test-wireproto-exchangev2.t flaky output When running the test suite with multiple processes, we often get flaky outputs, like here: https://ci.octobus.net/job/MercurialPy2/267/console ``` - received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos) add changeset cd2534766bec add changeset e96ae20f4188 add changeset caa2a465451d + received frame(size=0; request=1; stream=2; streamflags=; type=command-response; flags=eos) ``` Instead of simply sorting the clone and pull output, I saved the output in a separate file and checked the `received frame` messages on one side and then the rest of the output on the other side. This way we conserve the order of messages as it seems important. Differential Revision: https://phab.mercurial-scm.org/D5897

zsh: fix `hg resolve` completion when in a subdirectory (issue6067) Differential Revision: https://phab.mercurial-scm.org/D5836

revset: add expectsize to check the size of a set `expectsize(<set>, <int>)` revset fails if `<set>` is not exactly `<int>` elements. `expectsize(<set>, <min>:<max>)` revset fails if `<set>` is not exactly between `<min>` and `<max>` inclusive. This then allows an alias for `hg next` to be `update -r one(children(.))` with sane failure behavior, and also makes some other scripting tasks a little less difficult. (Summary from WeShouldDoThat) Differential Revision: https://phab.mercurial-scm.org/D5813