[hack] Do not run type checker twice when doing check --ai
[hack] Do not run type checker twice when doing check --ai

Summary: When in check mode and running the AI component, we do not need to do the initial type check since this is repeated as part of the AI component.

Reviewed By: @int3

Differential Revision: D2530097

fb-gh-sync-id: e5bd966b6412127e649f1788463ff0acf96ce448

facebook/flow,jeffmo/flow,claudiopro/flow,AgentME/flow,chenglou/flow,chenglou/flow,graue/flow,popham/flow,JonathanUsername/flow,jamesgpearce/flow,d14b3l/flow,facebook/flow,facebook/flow,shiftcars/flow,TiddoLangerak/flow,samwgoldman/flow,AgentME/flow,fletcherw/flow,fletcherw/flow,mroch/flow,mroch/flow,jamesgpearce/flow,fletcherw/flow,ylu1317/flow,shiftcars/flow,ylu1317/flow,ForbesLindesay/flow,TiddoLangerak/flow,mroch/flow,AprilArcus/flow,chenglou/flow,jamesgpearce/flow,nmote/flow,JonathanUsername/flow,MichaelDeBoey/flow,jgrund/flow,gabro/flow,nmote/flow,facebook/flow,AprilArcus/flow,gabelevi/flow,shiftcars/flow,gabelevi/flow,shiftcars/flow,nmote/flow,cesarandreu/flow,JonathanUsername/flow,jeffmo/flow,jeffmo/flow,MichaelDeBoey/flow,samwgoldman/flow,OCamlPro/flow,ylu1317/flow,cesarandreu/flow,gabro/flow,jdelStrother/flow,ForbesLindesay/flow,nmote/flow,popham/flow,popham/flow,TiddoLangerak/flow,samwgoldman/flow,jgrund/flow,Eyyub/flow,jgrund/flow,d14b3l/flow,AprilArcus/flow,shiftcars/flow,graue/flow,graue/flow,mroch/flow,facebook/flow,graue/flow,jamesgpearce/flow,jeffmo/flow,Eyyub/flow,samwgoldman/flow,TiddoLangerak/flow,fletcherw/flow,gabro/flow,jamesgpearce/flow,shiftcars/flow,claudiopro/flow,AprilArcus/flow,samwgoldman/flow,jgrund/flow,mroch/flow,gabelevi/flow,chenglou/flow,jgrund/flow,ForbesLindesay/flow,AprilArcus/flow,gabelevi/flow,fletcherw/flow,MichaelDeBoey/flow,JonathanUsername/flow,samwgoldman/flow,AgentME/flow,nmote/flow,gabelevi/flow,ylu1317/flow,OCamlPro/flow,mroch/flow,graue/flow,d14b3l/flow,jgrund/flow,gabro/flow,nmote/flow,jdelStrother/flow,popham/flow,chenglou/flow,AprilArcus/flow,facebook/flow,gabelevi/flow,TiddoLangerak/flow,d14b3l/flow,OCamlPro/flow,JonathanUsername/flow,popham/flow,cesarandreu/flow,popham/flow,claudiopro/flow,gabro/flow,ForbesLindesay/flow,ForbesLindesay/flow,jdelStrother/flow,jdelStrother/flow,AgentME/flow,Eyyub/flow,chenglou/flow,MichaelDeBoey/flow,gabro/flow,JonathanUsername/flow,JonathanUsername/flow,jeffmo/flow,mroch/flow,d14b3l/flow,jamesgpearce/flow,cesarandreu/flow,jdelStrother/flow,facebook/flow,samwgoldman/flow,claudiopro/flow,jamesgpearce/flow,ForbesLindesay/flow,popham/flow,jeffmo/flow,ylu1317/flow,graue/flow,Eyyub/flow,AgentME/flow,d14b3l/flow,claudiopro/flow,fletcherw/flow,nmote/flow,jdelStrother/flow,gabelevi/flow,MichaelDeBoey/flow,OCamlPro/flow