Add back React.__spread and make it warn#6444

Merged

zpao merged 2 commits intofacebook:masterfrom zpao:re__spreadwarn

Apr 8, 2016

+44-11

Commits on Apr 7, 2016

Revert "Merge pull request facebook#6431 from sebmarkbage/killspread"
zpao
committed

Commits on Apr 8, 2016

Make React.__spread warn
zpao
committed