D347: rebase: rewrite _computeobsoletenotrebased

[quark (Jun Wu)]

quark added inline comments.

INLINE COMMENTS

> martinvonz wrote in rebase.py:1494
> Oh, allsuccessors() includes "srcnode" in the output! It took me a while to figure that out. A comment would help.
> 
> How about something like this?
> 
>   successors = list(obsutil.allsuccessors(repo.obsstore, [srcnode]))
>   successors = successors[1:] # allsuccessors() includes the start nodes
>   if not successors:
>       # prune
>   ...

That copies the list therefore slightly less performant. I'll add a comment.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D347

To: quark, #hg-reviewers
Cc: martinvonz, mercurial-devel