Note that NS_OPTIONS is also nil-convertible in release notes.
Note that NS_OPTIONS is also nil-convertible in release notes.

Swift SVN r13125

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