Summary:
There are many files across fbobjc relying on -include_pch and therefore they miss Foundation.h and UIKit.h includes. This diff was generated by a codemod and fixes these missing includes.
More details on the missing imports https://fb.workplace.com/groups/929548250966094/permalink/981237982463787/
Changelog: [Internal]
Reviewed By: yannickl
Differential Revision: D37282740
fbshipit-source-id: 0f419025b3cf2f811e96ff464cb19e8e5a25aa09