[cast-opt] Combine two blocks with the same condition and invert that condition to eliminate a level of indentation.
[cast-opt] Combine two blocks with the same condition and invert that condition to eliminate a level of indentation.

NFCI.

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