R1:93681fcdbc5c

Generate expected schemata for Differential

Summary: Ref T1191. No major issues here.

Test Plan: Saw ~150 fewer issues.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T1191

Differential Revision: https://secure.phabricator.com/D10577