localrepo: allow narrowmatch() to accept matcher to intersect with...
localrepo: allow narrowmatch() to accept matcher to intersect with
It's pretty common that we need to intersect a matcher we already have
(usually from the user) with the narrow matcher. Let's make
repo.narrowmatch() take an optional matcher to intersect with.
Differential Revision:
https://phab.mercurial-scm.org/D4896