Native runtime: no need to account for ObjC pointers in uniqueness checking
Native runtime: no need to account for ObjC pointers in uniqueness
checking

Addresses review comment by Dave Abrahams.

Swift SVN r23520

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