Dynamic casting: test class-existential-to-value casts via bridging.
Dynamic casting: test class-existential-to-value casts via bridging.

These casts were already functional. <rdar://problem/17637959> appears
to be done.


Swift SVN r20965

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