IRGen: Don't emit polymorphic parameters for concrete-constrained associated types.
IRGen: Don't emit polymorphic parameters for concrete-constrained associated types.

Fixes <rdar://problem/16273572>.

Swift SVN r14871

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