D3931: revlog: introduce a isancestorrev() and use it in rebase

[martinvonz (Martin von Zweigbergk)]

martinvonz added a comment.


  In https://phab.mercurial-scm.org/D3931#61309, @lothiraldan wrote:
  
  > Having `isancestor` and `isancestorrev` taking the arguments in a different order seems confusing, 👎
  
  
  I agree, but they're not in different order, are they?

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D3931

To: martinvonz, indygreg, #hg-reviewers
Cc: lothiraldan, mercurial-devel