SIL: Disable verification of switch_union bbarg types.
SIL: Disable verification of switch_union bbarg types.

To do this correctly for generic unions, we'd need to be able to apply generic substitutions.

Swift SVN r8020

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