We should help high profile DevTools add-ons from the community after the file migration, including: * Ember * React

React PR submitted: https://github.com/facebook/react-devtools/pull/218 and merged: https://github.com/facebook/react-devtools/commit/55593099293dba676435cd49910d8c90c66fb1f8 Ember PR submitted: https://github.com/emberjs/ember-inspector/pull/470 Both of these add-ons were only using files we already shimmed, so they would have continued to work anyway. The changes just avoid printing migration warnings once those are on (after bug 1204127).

Ember merged: https://github.com/emberjs/ember-inspector/commit/77bd4bcc3ca9b0422818e76b1473ff7ccfa49cb0 I'll keep this open for now, in case we change to resource://devtools in bug 1203159. Also, we may find more add-ons to assist.

To cover changes after bug 1203159: Ember PR: https://github.com/emberjs/ember-inspector/pull/491 React PR: https://github.com/facebook/react-devtools/pull/277

Ember merged: https://github.com/emberjs/ember-inspector/commit/85ceadcf47230e756afdca3f2ec3187bd7c56606 React merged: https://github.com/facebook/react-devtools/commit/40f41c309caee3b054b1fc1100addf058372d77d