* Regression test for map() returning an array
* Add forgotten argument
This fixes the bug.
* Remove unused arg and retval
These aren't directly observable. The arg wasn't used, it's accidental and I forgot to remove. The retval was triggering a codepath that was unnecessary (pushing to array) so I removed that too.
* Flowify ReactChildren
* Tighten up types
* Rename getComponentKey to getElementKey
Dan Abramov
6498f62edc