SILGen: Build forwarding substitutions from context generic params.
SILGen: Build forwarding substitutions from context generic params.

Severs another easy dependency on SILFunctionType context.

Swift SVN r13052

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