insert init-class instructions
insert init-class instructions

Reviewed By: yuxuanchen1997

Differential Revision: D31187169

fbshipit-source-id: f2a118d6293cd966d58c49d44084e0265368ba71

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