Fix pht method calls
Summary: Ref T7046. This is mainly a proof-of-concept for D11661.
Test Plan: arc lint
Reviewers: epriestley, Blessed Reviewers
Reviewed By: epriestley, Blessed Reviewers
Subscribers: Korvin, epriestley
Maniphest Tasks: T7046
Differential Revision: https://secure.phabricator.com/D11682