grep: add MULTIREV support to --allfiles flag
This patch facilitates passing multiple revisions with all-files flag.
It's assumed that if you are passing multiple revisions to --allfiles,
you want hits from all of them.
Differential Revision: https://phab.mercurial-scm.org/D3976
Martin von Zweigbergk <martinvonz@google.com> [Thu, 19 Jul 2018 23:15:21 -0700] rev 38944
index: move index_clearcaches() further down
I want to add a call from it to a new function (nt_dealloc) that will
be inserted below its current position.
Differential Revision: https://phab.mercurial-scm.org/D4117