Summary:
Fixes T2639 by grouping related transactions at display time, so all the inlines merge into a nice block.
(Note that this does not do anything about T2709 yet, so there's still no way to figure out where the inlines actually are.)
Test Plan: {F35262}
Reviewers: chad
Reviewed By: chad
CC: aran
Maniphest Tasks: T2639
Differential Revision: https://secure.phabricator.com/D5313
