Summary:
cc hramos
Pretty sure I've hit all of the places where AppRegistry is called in CRNA-pastable examples. Let me know whether you think we need to approach the version lag differently, I figure a caveat is as natural a place to call it out as any.
If you end up finding anything else that needs tweaking before cherry picking, I'm happy to push that up here too.
Closes https://github.com/facebook/react-native/pull/13744
Differential Revision: D5071038
Pulled By: hramos
fbshipit-source-id: 4a4a6f2a73079aca627f17d75a4e4b395ecbd4a8