Summary: Various fixes of xcode projects and cleaning up some warnings Closes https://github.com/facebook/react-native/pull/13109 Differential Revision: D4762652 Pulled By: lacker fbshipit-source-id: b452976a58962439de4adecc8e703264af40cb38
Reviewed By: shergin Differential Revision: D4333546 fbshipit-source-id: 8655070e81dbb62a80ab1f00a43ef6c2d9654618