IRGen: Make the target OnceDone predicate value 32-bit-safe.
IRGen: Make the target OnceDone predicate value 32-bit-safe.

Thanks John.

Swift SVN r28168

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