[easy] Reuse Loc.make in type_info_service.ml instead of redefine it
[easy] Reuse Loc.make in type_info_service.ml instead of redefine it

Summary: Code reuse opportunity.

Reviewed By: samwgoldman

Differential Revision: D7402477

fbshipit-source-id: 8fbe89750dcbec7c857af75eedac9346cd118bcd

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