prune: update to the successor of wdir also with --pair/--biject (issue6142)
When prune is used with --pair flag, we can also update to the successor of
working directory parent.
No need to check len(sucs) or len(precs) here because there's a check for that
earlier in the code (it's a requirement of biject).
The tests are now demonstrate the correct behavior: when rev 14 was pruned with
12 as its successor, the bookmark that was on 14 was moved to 12. That bookmark
was also activated (even before this patch).
This software was downloaded from
https://www.mercurial-scm.org/repo/evolve/
Copyright 2011 Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
Logilab SA <contact@logilab.fr>
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
Patrick Mezard <patrick@mezard.eu>
This software may be used and distributed according to the terms of the GNU
General Public License version 2 or any later version.
On Debian systems, the complete text of the GNU General Public License version
2 can be found in `/usr/share/common-licenses/GPL-2'.