Use array with objects instead of mutable array when building subclass list
Use array with objects instead of mutable array when building subclass list

Summary: Version: patch

Test Plan: Ensure iOS app launches correctly

Reviewers: sylvain, blossom, James, engin, westin, robb

Reviewed By: robb

Subscribers: jenkins

Differential Revision: https://phabricator.automatic.co/D11298

Automatic/AUTUserNotifications,Automatic/AUTUserNotifications,Automatic/AUTUserNotifications