Always assume that the result of calling self.init or super.init is of the appropriate subclass type.
Always assume that the result of calling self.init or super.init is of the appropriate subclass type.

Eliminates some Swift-side checking for a memory safety problem that
can only originate in Objective-C.

Swift SVN r12413

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