[Parser] Fix the inspect_ast tool
[Parser] Fix the inspect_ast tool

Summary: Looks like js_of_ocaml will curry functions, so when we were calling
parse() with only one argument it would return a function rather than parsing.
Awesome!

Reviewed By: @mroch

Differential Revision: D2416962

mroch/flow,AprilArcus/flow,JonathanUsername/flow,jeffutter/flow,AgentME/flow,shiftcars/flow,KevinTCoughlin/flow,graue/flow,KevinTCoughlin/flow,gabro/flow,gabelevi/flow,MichaelDeBoey/flow,paulshen/flow,popham/flow,d14b3l/flow,nmote/flow,jdelStrother/flow,gabro/flow,JonathanUsername/flow,asivitz/flow,AgentME/flow,darioajr/flow,jeffmo/flow,TiddoLangerak/flow,jeffmo/flow,mcanthony/flow-type,mcanthony/flow-type,jdelStrother/flow,Eyyub/flow,ylu1317/flow,JonathanUsername/flow,fletcherw/flow,OCamlPro/flow,JonathanUsername/flow,samwgoldman/flow,AgentME/flow,AprilArcus/flow,nmote/flow,chenglou/flow,cesarandreu/flow,siddhartharay007/flow,AprilArcus/flow,AgentME/flow,claudiopro/flow,graue/flow,Fresheyeball/flow,popham/flow,gabro/flow,darioajr/flow,chenglou/flow,TiddoLangerak/flow,ForbesLindesay/flow,jdelStrother/flow,popham/flow,claudiopro/flow,OCamlPro/flow,Fresheyeball/flow,siddhartharay007/flow,ylu1317/flow,gabelevi/flow,AprilArcus/flow,gabelevi/flow,jeffmo/flow,popham/flow,gabro/flow,MichaelDeBoey/flow,ForbesLindesay/flow,jdelStrother/flow,fletcherw/flow,asivitz/flow,fletcherw/flow,facebook/flow,AprilArcus/flow,chenglou/flow,jeffmo/flow,nmote/flow,jdelStrother/flow,mcanthony/flow-type,jeffmo/flow,nmote/flow,facebook/flow,graue/flow,mcanthony/flow-type,jgrund/flow,TiddoLangerak/flow,gabro/flow,MichaelDeBoey/flow,samwgoldman/flow,d14b3l/flow,JohnyDays/flow,jamesgpearce/flow,d14b3l/flow,jdelStrother/flow,gabro/flow,jgrund/flow,siddhartharay007/flow,KevinTCoughlin/flow,nmote/flow,fletcherw/flow,KevinTCoughlin/flow,facebook/flow,mroch/flow,ylu1317/flow,OCamlPro/flow,paulshen/flow,Wanderfalke/flow,TiddoLangerak/flow,danvk/flow,mroch/flow,paulshen/flow,popham/flow,shiftcars/flow,samwgoldman/flow,JonathanUsername/flow,Fresheyeball/flow,danvk/flow,JonathanUsername/flow,samwgoldman/flow,darioajr/flow,nmote/flow,claudiopro/flow,jgrund/flow,shiftcars/flow,AgentME/flow,jamesgpearce/flow,facebook/flow,d14b3l/flow,MichaelDeBoey/flow,ForbesLindesay/flow,d14b3l/flow,jamesgpearce/flow,jamesgpearce/flow,asivitz/flow,darioajr/flow,mroch/flow,shiftcars/flow,facebook/flow,jamesgpearce/flow,cesarandreu/flow,gabelevi/flow,jeffutter/flow,jgrund/flow,danvk/flow,JohnyDays/flow,jgrund/flow,TiddoLangerak/flow,jamesgpearce/flow,gabelevi/flow,JonathanUsername/flow,Wanderfalke/flow,asivitz/flow,d14b3l/flow,popham/flow,gabelevi/flow,ylu1317/flow,siddhartharay007/flow,samwgoldman/flow,mroch/flow,chenglou/flow,jgrund/flow,mroch/flow,fletcherw/flow,graue/flow,shiftcars/flow,shiftcars/flow,cesarandreu/flow,MichaelDeBoey/flow,Eyyub/flow,jeffutter/flow,facebook/flow,danvk/flow,chenglou/flow,gabelevi/flow,samwgoldman/flow,graue/flow,JohnyDays/flow,Fresheyeball/flow,paulshen/flow,claudiopro/flow,jeffmo/flow,OCamlPro/flow,Wanderfalke/flow,ylu1317/flow,Eyyub/flow,jeffutter/flow,graue/flow,JohnyDays/flow,AprilArcus/flow,facebook/flow,nmote/flow,ForbesLindesay/flow,fletcherw/flow,samwgoldman/flow,ForbesLindesay/flow,cesarandreu/flow,ForbesLindesay/flow,chenglou/flow,Eyyub/flow,Wanderfalke/flow,jamesgpearce/flow,claudiopro/flow,mroch/flow,popham/flow