Runtime: avoid forward declaring public interfaces
Runtime: avoid forward declaring public interfaces

Use the "objc/runtime.h" header rather than re-declaring interfaces from the
ObjC runtime.  NFC.

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