[hack] deriving show-ify smart constructors
[hack] deriving show-ify smart constructors

Summary: make some more things showable

Reviewed By: vassilmladenov

Differential Revision: D7831857

fbshipit-source-id: 4ee3361c7be0b9fc4348d5752bd1960e3fe36328

facebook/flow,facebook/flow,JonathanUsername/flow,JonathanUsername/flow,facebook/flow,mroch/flow,samwgoldman/flow,gabelevi/flow,gabelevi/flow,popham/flow,mroch/flow,popham/flow,JonathanUsername/flow,gabelevi/flow,AgentME/flow,claudiopro/flow,AgentME/flow,AgentME/flow,popham/flow,popham/flow,gabelevi/flow,jamesgpearce/flow,JonathanUsername/flow,mroch/flow,JonathanUsername/flow,claudiopro/flow,claudiopro/flow,popham/flow,gabelevi/flow,samwgoldman/flow,claudiopro/flow,claudiopro/flow,samwgoldman/flow,nmote/flow,facebook/flow,jamesgpearce/flow,popham/flow,AgentME/flow,nmote/flow,facebook/flow,mroch/flow,mroch/flow,nmote/flow,jamesgpearce/flow,gabelevi/flow,mroch/flow,gabelevi/flow,mroch/flow,samwgoldman/flow,nmote/flow,facebook/flow,nmote/flow,popham/flow,nmote/flow,JonathanUsername/flow,jamesgpearce/flow,JonathanUsername/flow,samwgoldman/flow,nmote/flow,jamesgpearce/flow,facebook/flow,jamesgpearce/flow,jamesgpearce/flow,samwgoldman/flow,AgentME/flow,samwgoldman/flow