bookmarks: calculateupdate() returns a bookmark, not a rev This changes the inaccurate/unclear documentation and also changes the code so "node" now contains a binary nodeid. Differential Revision: https://phab.mercurial-scm.org/D3087

pull: pass rev to check out as integer to postincoming() I don't know if there's ever been a need for it to be a string (it's been like that since 02f40b2ece3f (commands: use rev from remote repo when updating as part of a pull, 2009-10-21)). I'm soon going to require it to be an integer, so let's fix this first. Differential Revision: https://phab.mercurial-scm.org/D3086

children: support specifying revision by revset Same reason as the previous patch. Differential Revision: https://phab.mercurial-scm.org/D3085

heads: add support for specifying branches by revset Before this commit, e.g. "hg heads .^" would fail with: abort: unknown revision '.^'! Like the previous patch, I don't care about the command itself (I don't think I had ever used it before), I'm just cleaning up uses of repo[<string>]. Differential Revision: https://phab.mercurial-scm.org/D3084

perf: make perfmanifest and perfnodelookup work with revsets They were using repo[rev], which only works with a single symbol (e.g. "." or "my-bookmark"), not general revsets. Switch them to scmutil.revsingle() so they can also be used with e.g. ".^". I don't actually care about these commands, but I want to remove uses of repo[<string>]. Differential Revision: https://phab.mercurial-scm.org/D3083

context: use revsymbol() in "merge.preferancestor" code Differential Revision: https://phab.mercurial-scm.org/D3082