Summary: Use `x.y` in favor of `x['y']` in //some// JavaScript callsites. Note that there are a bunch of places where the latter is explicitly used to trick `PhabricatorJavelinLinter`.
Test Plan: `arc lint`
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D11442
dd81268a8e