Fix Lipsum generators for Differential Revisions and Pastes
Summary:
When generating test data to solve a bug I have encountered, I noticed Lipsum was not working correctly for Differential Revisions and Pastes.
It seemed like they weren't updated after some refactoring. This fixes that by updating them.
Test Plan: Run Lipsum for all objects, and note that it has much less failure.
Reviewers: Blessed Reviewers, epriestley
Reviewed By: Blessed Reviewers, epriestley
Subscribers: Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D19534