emberjs/ember.js — pull request #9325 by stefanpenner (2014-10-15 04:22:07+00:00)
Title: Symbol spike

this is just a spike, experimenting with symbols over defProp

- [ ] make this work with non-symbol supporting browsers
- [ ] evaluate the impact of slower property lookups but much faster object allocation.. (until they make symbol lookups faster)
- [ ] ...