[cast-opt] Rename misnamed variable.
[cast-opt] Rename misnamed variable.

This is actually an out parameter of the apply that we are then switching upon.

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