teach definite init about upcast_existential.
teach definite init about upcast_existential.


Swift SVN r7573

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