Always Objective-C categories for extensions with [objc] entry points.
Always Objective-C categories for extensions with [objc] entry points.

Previously, we predicated this on the original class itself being
[objc] or the extension having adopted any [objc] protocols. Extend
that definition to consider one-off, explicitly-marked [objc] methods
or properties.

Since we're here, and make sure we can reference the Objective-C
metaclass in the interpreter even when the original class wasn't
marked [objc].



Swift SVN r8310

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