Update implementor's annotation when erasing interface
Update implementor's annotation when erasing interface

Summary:
Happened to see why we have the annotation black list for the pass. Fix it
Combine the interface's annotation set to its implementer when erasing the interface.

Differential Revision: D16634148

fbshipit-source-id: 78f4a190cec73c7874ab51a044acfd52ccc0db82

facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex