Revert "[PrintAsObjC] Don't include the module for empty extensions"
Revert "[PrintAsObjC] Don't include the module for empty extensions"

This reverts commit 8f01b2c8f8ccb2b2d5337029df1aa85ed994242c.

rudkx/swift,jckarter/swift,airspeedswift/swift,benlangmuir/swift,airspeedswift/swift,xwu/swift,CodaFi/swift,jckarter/swift,rudkx/swift,allevato/swift,glessard/swift,atrick/swift,CodaFi/swift,nathawes/swift,airspeedswift/swift,apple/swift,airspeedswift/swift,glessard/swift,ahoppen/swift,rudkx/swift,gregomni/swift,airspeedswift/swift,ahoppen/swift,atrick/swift,JGiola/swift,tkremenek/swift,parkera/swift,CodaFi/swift,stephentyrone/swift,aschwaighofer/swift,glessard/swift,glessard/swift,harlanhaskins/swift,parkera/swift,allevato/swift,JGiola/swift,aschwaighofer/swift,stephentyrone/swift,rudkx/swift,allevato/swift,apple/swift,atrick/swift,roambotics/swift,xwu/swift,allevato/swift,CodaFi/swift,jckarter/swift,harlanhaskins/swift,hooman/swift,jmgc/swift,xwu/swift,xwu/swift,rudkx/swift,JGiola/swift,xwu/swift,tkremenek/swift,apple/swift,tkremenek/swift,gregomni/swift,tkremenek/swift,JGiola/swift,tkremenek/swift,glessard/swift,jckarter/swift,jmgc/swift,jmgc/swift,apple/swift,atrick/swift,jckarter/swift,nathawes/swift,xwu/swift,harlanhaskins/swift,nathawes/swift,gregomni/swift,parkera/swift,gregomni/swift,hooman/swift,hooman/swift,parkera/swift,benlangmuir/swift,nathawes/swift,gregomni/swift,hooman/swift,roambotics/swift,apple/swift,parkera/swift,xwu/swift,aschwaighofer/swift,jmgc/swift,atrick/swift,parkera/swift,stephentyrone/swift,hooman/swift,aschwaighofer/swift,benlangmuir/swift,tkremenek/swift,aschwaighofer/swift,aschwaighofer/swift,JGiola/swift,benlangmuir/swift,jckarter/swift,ahoppen/swift,nathawes/swift,roambotics/swift,jmgc/swift,parkera/swift,ahoppen/swift,harlanhaskins/swift,airspeedswift/swift,roambotics/swift,nathawes/swift,parkera/swift,allevato/swift,stephentyrone/swift,rudkx/swift,ahoppen/swift,hooman/swift,CodaFi/swift,benlangmuir/swift,atrick/swift,tkremenek/swift,gregomni/swift,harlanhaskins/swift,jmgc/swift,CodaFi/swift,jmgc/swift,allevato/swift,JGiola/swift,nathawes/swift,airspeedswift/swift,harlanhaskins/swift,stephentyrone/swift,glessard/swift,CodaFi/swift,hooman/swift,apple/swift,roambotics/swift,benlangmuir/swift,roambotics/swift,stephentyrone/swift,stephentyrone/swift,harlanhaskins/swift,aschwaighofer/swift,ahoppen/swift,allevato/swift,jckarter/swift