Summary:
Unmuck almost all of the we-sort-of-have-viewers-some-of-the-time mess.
There are a few notable cases here:
- I used Omnipotent users when indexing objects for search. I think this is correct; we do policy filtering when showing results.
- I cheated in a bad way in the Remarkup object rule, but fixing this requires fixing all the PhabricatorRemarkupEngine callsites (there are 85). I'll do that in the next diff.
- I cheated in a few random places, like when sending mail about package edits. These aren't a big deal.
Test Plan:
- Grepped for all PhabricatorObjectHandleData references.
- Gave them viewers.
Reviewers: vrana
Reviewed By: vrana
CC: aran, edward
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D5151
