Summary:
In ObjC there are no access modifiers. The strongest alternative is to put methods in the implementation but omit them from the interface declaration.
Put exported ObjC methods in their own field in the class structure and use that in RacerD to decide whether to report on the method.
Reviewed By: mbouaziz
Differential Revision: D13597504
fbshipit-source-id: c4a3d2705