contrib/python3-whitelist

revset: use phasecache.getrevset to calculate public()

Other revsets like secret(), draft(), _nonpublic() are using
phasescache.getrevset already. The latter is more efficient after D1606.
So let's migrate the public() revset function too.

Tested using:

  $ hg debugshell --hidden --cwd hg-committed`
  In [1]: %timeit len(repo.revs('public()'))

* Before D1606: 10 loops, best of 3: 22.5 ms per loop
* Before this change, after D1606: 10 loops, best of 3: 28.6 ms per loop
* After this change: 10 loops, best of 3: 20.2 ms per loop

Therefore `public()` revset becomes even slightly faster after the data
structure change by D1606. A similar performance win could also be observed
on a large repo.

A side effect is `phasecache.getrevset` needs to take a `subset` parameter.
That was added with a default value so it won't cause BC issues.

Differential Revision: https://phab.mercurial-scm.org/D1620

test-add.t
test-addremove-similar.t
test-addremove.t
test-ancestor.py
test-automv.t
test-backwards-remove.t
test-bheads.t
test-bisect2.t
test-bookmarks-merge.t
test-bookmarks-strip.t
test-branch-tag-confict.t
test-casecollision.t
test-changelog-exec.t
test-check-commit.t
test-check-execute.t
test-check-module-imports.t
test-check-pyflakes.t
test-check-pylint.t
test-check-shbang.t
test-children.t
test-commit-unresolved.t
test-contrib-check-code.t
test-contrib-check-commit.t
test-debugrename.t
test-diff-copy-depth.t
test-diff-hashes.t
test-diff-issue2761.t
test-diff-newlines.t
test-diff-reverse.t
test-diff-subdir.t
test-dirstate-nonnormalset.t
test-doctest.py
test-double-merge.t
test-duplicateoptions.py
test-empty-dir.t
test-empty-file.t
test-empty.t
test-encoding-func.py
test-excessive-merge.t
test-execute-bit.t
test-gpg.t
test-hghave.t
test-imports-checker.t
test-issue1089.t
test-issue1877.t
test-issue1993.t
test-issue522.t
test-issue612.t
test-issue619.t
test-issue672.t
test-issue842.t
test-journal-exists.t
test-locate.t
test-lrucachedict.py
test-manifest.py
test-match.py
test-merge-default.t
test-merge-remove.t
test-merge-revert.t
test-merge-subrepos.t
test-merge2.t
test-merge4.t
test-merge5.t
test-permissions.t
test-push-checkheads-pruned-B1.t
test-push-checkheads-pruned-B6.t
test-push-checkheads-pruned-B7.t
test-push-checkheads-superceed-A1.t
test-push-checkheads-superceed-A4.t
test-push-checkheads-superceed-A5.t
test-push-checkheads-superceed-A8.t
test-push-checkheads-unpushed-D1.t
test-push-checkheads-unpushed-D6.t
test-push-checkheads-unpushed-D7.t
test-rename-merge1.t
test-rename.t
test-revert-flags.t
test-revert-unknown.t
test-revlog-group-emptyiter.t
test-revlog-packentry.t
test-run-tests.py
test-show-stack.t
test-status-terse.t
test-uncommit.t
test-unified-test.t
test-update-issue1456.t
test-update-names.t
test-update-reverse.t
test-xdg.t