Fix r11580 in a more targeted fashion.
Fix r11580 in a more targeted fashion.

Gratuitously stripping the labels interferes with (T : U -> V) abstraction changes. Only strip the labels where strictly necessary for correct behavior for now.

Swift SVN r11586

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