Don't permit implicit protocol conformance for archetypes or existentials.
Don't permit implicit protocol conformance for archetypes or existentials.

Fixes <rdar://problem/14168956>.


Swift SVN r5662

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