Make most Differential reads policy-aware
Summary: Ref T603. Makes the majority of reads policy aware (and pretty much all the important ones).
Test Plan:
- Created a comment with differential.createcomment.
- Created a new revision with arc diff in order to exercise differential.creatediff.
- Created an inline comment with differential.createinline.
- Added a comment to a revision.
- Edited an inline comment.
- Edited a revision.
- Wrote "Depends on ..." in a summary, saved, verified link was created.
- Browsed a file in Diffusion.
- Got past the code I changed in the Releeph request thing.
- Edited a Releeph request.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D7136