[NFC] Replace new getAccessor calls with getOpaqueAccessor calls.
[NFC] Replace new getAccessor calls with getOpaqueAccessor calls.

It is fine if we synthesize the accessors a bit more than usual as
PrintAsObjC isn't performance-sensitive and IRGen needs the accessors
anyways.

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