Revert "Revert "IRGen: If Objective-C interop is disabled foreign classes should use Swift reference counting""
Revert "Revert "IRGen: If Objective-C interop is disabled foreign classes should use Swift reference counting""

This reverts commit d326c8e5f7fab8b76826abe13f1c3b87d6b76319.

We believe the failure now may be in the setup of the test harness.
Re-applying this change, since the tests passed in our other
configurations.

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