[sil-devirtualizer] Fold a variable declaration into conditional. NFC.
[sil-devirtualizer] Fold a variable declaration into conditional. NFC.

Swift SVN r31057

johnno1962d/swift,ben-ng/swift,uasys/swift,sschiau/swift,devincoughlin/swift,dduan/swift,swiftix/swift.old,dduan/swift,therealbnut/swift,djwbrown/swift,KrishMunot/swift,allevato/swift,jopamer/swift,gottesmm/swift,allevato/swift,ahoppen/swift,alblue/swift,zisko/swift,jckarter/swift,allevato/swift,airspeedswift/swift,sdulal/swift,huonw/swift,benlangmuir/swift,kstaring/swift,codestergit/swift,LeoShimonaka/swift,huonw/swift,JaSpa/swift,Ivacker/swift,xedin/swift,LeoShimonaka/swift,jtbandes/swift,return/swift,CodaFi/swift,codestergit/swift,lorentey/swift,adrfer/swift,codestergit/swift,zisko/swift,dreamsxin/swift,lorentey/swift,swiftix/swift,kstaring/swift,ben-ng/swift,jckarter/swift,return/swift,felix91gr/swift,jmgc/swift,jmgc/swift,xedin/swift,OscarSwanros/swift,dduan/swift,ken0nek/swift,bitjammer/swift,LeoShimonaka/swift,ahoppen/swift,ken0nek/swift,atrick/swift,JGiola/swift,aschwaighofer/swift,LeoShimonaka/swift,nathawes/swift,austinzheng/swift,airspeedswift/swift,xwu/swift,russbishop/swift,rudkx/swift,austinzheng/swift,xedin/swift,kperryua/swift,stephentyrone/swift,Jnosh/swift,benlangmuir/swift,swiftix/swift,natecook1000/swift,deyton/swift,mightydeveloper/swift,kperryua/swift,sschiau/swift,devincoughlin/swift,hooman/swift,gribozavr/swift,SwiftAndroid/swift,devincoughlin/swift,bitjammer/swift,SwiftAndroid/swift,shahmishal/swift,russbishop/swift,djwbrown/swift,sdulal/swift,parkera/swift,djwbrown/swift,swiftix/swift.old,shahmishal/swift,deyton/swift,brentdax/swift,Ivacker/swift,tkremenek/swift,dduan/swift,jopamer/swift,ken0nek/swift,tinysun212/swift-windows,ahoppen/swift,swiftix/swift.old,cbrentharris/swift,harlanhaskins/swift,sschiau/swift,LeoShimonaka/swift,shahmishal/swift,deyton/swift,JGiola/swift,ken0nek/swift,KrishMunot/swift,return/swift,parkera/swift,shahmishal/swift,hughbe/swift,karwa/swift,devincoughlin/swift,tinysun212/swift-windows,tardieu/swift,devincoughlin/swift,devincoughlin/swift,SwiftAndroid/swift,mightydeveloper/swift,IngmarStein/swift,swiftix/swift.old,gottesmm/swift,tkremenek/swift,JaSpa/swift,kperryua/swift,swiftix/swift,huonw/swift,sschiau/swift,gribozavr/swift,arvedviehweger/swift,modocache/swift,modocache/swift,bitjammer/swift,ben-ng/swift,russbishop/swift,Jnosh/swift,swiftix/swift,cbrentharris/swift,ben-ng/swift,IngmarStein/swift,russbishop/swift,kusl/swift,KrishMunot/swift,mightydeveloper/swift,alblue/swift,rudkx/swift,KrishMunot/swift,kusl/swift,kstaring/swift,huonw/swift,zisko/swift,JGiola/swift,xwu/swift,hughbe/swift,gmilos/swift,johnno1962d/swift,JaSpa/swift,JaSpa/swift,frootloops/swift,shajrawi/swift,jtbandes/swift,LeoShimonaka/swift,emilstahl/swift,practicalswift/swift,gregomni/swift,jtbandes/swift,gribozavr/swift,felix91gr/swift,frootloops/swift,shajrawi/swift,nathawes/swift,karwa/swift,kusl/swift,roambotics/swift,parkera/swift,kusl/swift,apple/swift,practicalswift/swift,kstaring/swift,SwiftAndroid/swift,sdulal/swift,russbishop/swift,CodaFi/swift,uasys/swift,khizkhiz/swift,apple/swift,harlanhaskins/swift,amraboelela/swift,austinzheng/swift,modocache/swift,ben-ng/swift,deyton/swift,Jnosh/swift,return/swift,codestergit/swift,xwu/swift,bitjammer/swift,kperryua/swift,gribozavr/swift,devincoughlin/swift,tjw/swift,lorentey/swift,zisko/swift,huonw/swift,karwa/swift,SwiftAndroid/swift,tkremenek/swift,kstaring/swift,xwu/swift,milseman/swift,kentya6/swift,jckarter/swift,Ivacker/swift,uasys/swift,aschwaighofer/swift,kentya6/swift,shajrawi/swift,OscarSwanros/swift,hooman/swift,JGiola/swift,natecook1000/swift,jopamer/swift,austinzheng/swift,danielmartin/swift,russbishop/swift,atrick/swift,glessard/swift,therealbnut/swift,hughbe/swift,glessard/swift,swiftix/swift.old,return/swift,arvedviehweger/swift,adrfer/swift,alblue/swift,sdulal/swift,aschwaighofer/swift,benlangmuir/swift,nathawes/swift,gribozavr/swift,lorentey/swift,xedin/swift,practicalswift/swift,felix91gr/swift,gottesmm/swift,adrfer/swift,danielmartin/swift,slavapestov/swift,Ivacker/swift,mightydeveloper/swift,stephentyrone/swift,shajrawi/swift,johnno1962d/swift,swiftix/swift,amraboelela/swift,cbrentharris/swift,uasys/swift,CodaFi/swift,gmilos/swift,tjw/swift,kperryua/swift,rudkx/swift,stephentyrone/swift,hooman/swift,JaSpa/swift,xwu/swift,amraboelela/swift,kstaring/swift,calebd/swift,kusl/swift,parkera/swift,ahoppen/swift,arvedviehweger/swift,ahoppen/swift,airspeedswift/swift,tjw/swift,frootloops/swift,khizkhiz/swift,adrfer/swift,emilstahl/swift,MukeshKumarS/Swift,allevato/swift,nathawes/swift,kentya6/swift,hughbe/swift,benlangmuir/swift,swiftix/swift.old,manavgabhawala/swift,IngmarStein/swift,milseman/swift,sschiau/swift,CodaFi/swift,khizkhiz/swift,practicalswift/swift,tardieu/swift,modocache/swift,sschiau/swift,gregomni/swift,devincoughlin/swift,brentdax/swift,OscarSwanros/swift,calebd/swift,roambotics/swift,jopamer/swift,kentya6/swift,shahmishal/swift,manavgabhawala/swift,jopamer/swift,frootloops/swift,jckarter/swift,felix91gr/swift,tinysun212/swift-windows,amraboelela/swift,deyton/swift,OscarSwanros/swift,emilstahl/swift,calebd/sw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