bisect: limit ancestors to revs topologically between good and bad revs Previously, when constructing its dict of revisions to their ancestors, bisect would populate the dict with ALL of the descendents of the good set, which is a bit silly because it is impossible for a revision that is a descendent of the minimum known bad revision to be the first bad rev. Instead it makes more sense to limit the revisions to just those topologically between the good and bad.

bisect: bypass changectx when translating revs to nodes When resolving the revset given by the user into node hashes, use the changelog to perform the translation rather than the repo object. This avoids the overhead of constructing a changectx which is immediately discarded.

rhg: make [rhg status -v] work when it needs no extra output Add support for verbose [status] when no extra output is actually needed. This makes it so that [rhg status] is actually useful when [tweakdefaults] is true. (since tweakdefaults implies verbose status)

perf: introduce a benchmark for delta-find That part is responsible of serious slowdown in some `hg pull/unbundle` case. So lets add a way to benchmark it.

debug-delta-find: introduce a quiet mode In quiet mode, we only print the summary of the search and skip the individual steps.

phase-shelve: also capture the state of shelve prior to unshelve

phase-shelve: Add test for shelve technique config

phase-shelve: Implement a 'shelve.store' experimental config Accepts "internal" or "strip", indicating how the shelved changes are stored. Defaults to "internal", retaining compatibility for repos with "internal-phase" already enabled.

phase-shelve: Extract function for _target_phase

phase-shelve: expand the tests to capture use-cases supported