Support @cpp.Adapter in typedef [1/N]
Support @cpp.Adapter in typedef [1/N]

Summary: In preparation of allowing cpp.Adapter on typedef.

Reviewed By: Mizuchi

Differential Revision: D35391032

fbshipit-source-id: e8322506c21b01c713f7dbbb86fae2d4419e7f77

facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift