angular/angular.js — pull request #5660 by chrisirhc (2014-01-07 10:04:56+00:00)
Title: fix($rootScope): $destroy parents and self within watchers

First stab at this problem. This isn't very performant and potentially
creates a lot of work for the GC.

I'll update as I go along. First, I want to verify that this is an issue at all.

Fixes #5658