AST: Tighten up assertions when constructing SILFunctionTypes
AST: Tighten up assertions when constructing SILFunctionTypes

It looks like at one point they could contain the protocol Self
archetype, but not anymore.

swiftix/swift,devincoughlin/swift,tinysun212/swift-windows,sschiau/swift,hughbe/swift,glessard/swift,austinzheng/swift,modocache/swift,lorentey/swift,xwu/swift,hughbe/swift,arvedviehweger/swift,allevato/swift,jmgc/swift,return/swift,ahoppen/swift,calebd/swift,calebd/swift,OscarSwanros/swift,xwu/swift,rudkx/swift,shahmishal/swift,swiftix/swift,atrick/swift,gmilos/swift,arvedviehweger/swift,frootloops/swift,devincoughlin/swift,amraboelela/swift,tjw/swift,JGiola/swift,lorentey/swift,shahmishal/swift,huonw/swift,zisko/swift,parkera/swift,shajrawi/swift,practicalswift/swift,harlanhaskins/swift,tinysun212/swift-windows,therealbnut/swift,IngmarStein/swift,kstaring/swift,therealbnut/swift,rudkx/swift,gmilos/swift,austinzheng/swift,xedin/swift,jopamer/swift,gmilos/swift,roambotics/swift,benlangmuir/swift,IngmarStein/swift,felix91gr/swift,jtbandes/swift,nathawes/swift,frootloops/swift,gottesmm/swift,austinzheng/swift,gribozavr/swift,brentdax/swift,practicalswift/swift,allevato/swift,milseman/swift,bitjammer/swift,devincoughlin/swift,uasys/swift,airspeedswift/swift,zisko/swift,practicalswift/swift,austinzheng/swift,alblue/swift,bitjammer/swift,shahmishal/swift,ahoppen/swift,brentdax/swift,tardieu/swift,tjw/swift,felix91gr/swift,karwa/swift,practicalswift/swift,nathawes/swift,hughbe/swift,harlanhaskins/swift,Jnosh/swift,arvedviehweger/swift,jtbandes/swift,danielmartin/swift,CodaFi/swift,danielmartin/swift,lorentey/swift,manavgabhawala/swift,deyton/swift,aschwaighofer/swift,codestergit/swift,jopamer/swift,harlanhaskins/swift,nathawes/swift,hooman/swift,IngmarStein/swift,deyton/swift,stephentyrone/swift,atrick/swift,benlangmuir/swift,gregomni/swift,arvedviehweger/swift,danielmartin/swift,gregomni/swift,gribozavr/swift,OscarSwanros/swift,russbishop/swift,nathawes/swift,frootloops/swift,frootloops/swift,practicalswift/swift,felix91gr/swift,aschwaighofer/swift,natecook1000/swift,xedin/swift,huonw/swift,sschiau/swift,tkremenek/swift,nathawes/swift,rudkx/swift,ben-ng/swift,parkera/swift,brentdax/swift,harlanhaskins/swift,gottesmm/swift,Jnosh/swift,huonw/swift,rudkx/swift,tjw/swift,kstaring/swift,therealbnut/swift,therealbnut/swift,calebd/swift,jopamer/swift,jmgc/swift,gottesmm/swift,sschiau/swift,tkremenek/swift,rudkx/swift,glessard/swift,CodaFi/swift,hooman/swift,OscarSwanros/swift,roambotics/swift,airspeedswift/swift,gribozavr/swift,therealbnut/swift,apple/swift,modocache/swift,apple/swift,roambotics/swift,allevato/swift,sschiau/swift,parkera/swift,tkremenek/swift,airspeedswift/swift,frootloops/swift,milseman/swift,alblue/swift,gottesmm/swift,benlangmuir/swift,russbishop/swift,djwbrown/swift,tkremenek/swift,tinysun212/swift-windows,nathawes/swift,IngmarStein/swift,ahoppen/swift,tardieu/swift,allevato/swift,JaSpa/swift,huonw/swift,milseman/swift,shajrawi/swift,milseman/swift,bitjammer/swift,shajrawi/swift,xwu/swift,tinysun212/swift-windows,lorentey/swift,lorentey/swift,therealbnut/swift,glessard/swift,kperryua/swift,parkera/swift,jtbandes/swift,tardieu/swift,russbishop/swift,gottesmm/swift,brentdax/swift,jopamer/swift,felix91gr/swift,codestergit/swift,tinysun212/swift-windows,calebd/swift,milseman/swift,karwa/swift,tjw/swift,deyton/swift,roambotics/swift,jtbandes/swift,allevato/swift,hughbe/swift,benlangmuir/swift,apple/swift,calebd/swift,xwu/swift,glessard/swift,deyton/swift,huonw/swift,manavgabhawala/swift,stephentyrone/swift,jmgc/swift,stephentyrone/swift,manavgabhawala/swift,return/swift,amraboelela/swift,tjw/swift,stephentyrone/swift,OscarSwanros/swift,kstaring/swift,zisko/swift,kperryua/swift,tardieu/swift,glessard/swift,uasys/swift,jopamer/swift,parkera/swift,gmilos/swift,Jnosh/swift,jckarter/swift,Jnosh/swift,practicalswift/swift,ahoppen/swift,IngmarStein/swift,shajrawi/swift,tardieu/swift,alblue/swift,ben-ng/swift,sschiau/swift,Jnosh/swift,jtbandes/swift,gottesmm/swift,ahoppen/swift,natecook1000/swift,CodaFi/swift,gribozavr/swift,gribozavr/swift,alblue/swift,tinysun212/swift-windows,djwbrown/swift,shahmishal/swift,ahoppen/swift,uasys/swift,aschwaighofer/swift,rudkx/swift,allevato/swift,return/swift,deyton/swift,manavgabhawala/swift,natecook1000/swift,gmilos/swift,ben-ng/swift,kstaring/swift,natecook1000/swift,JaSpa/swift,gmilos/swift,xedin/swift,arvedviehweger/swift,atrick/swift,xedin/swift,xedin/swift,deyton/swift,huonw/swift,OscarSwanros/swift,uasys/swift,modocache/swift,JGiola/swift,return/swift,xwu/swift,JGiola/swift,jckarter/swift,airspeedswift/swift,JGiola/swift,shahmishal/swift,karwa/swift,felix91gr/swift,arvedviehweger/swift,hooman/swift,codestergit/swift,frootloops/swift,harlanhaskins/swift,tinysun212/swift-windows,xedin/swift,parkera/swift,devincoughlin/swift,devincoughlin/swift,return/swift,kperryua/swift,OscarSwanros/swift,manavgabhawala/swift,glessard/swift,ben-ng/swift,zisko/swift,tjw/swift,amraboelela/swift,natecook1000/swift,stephentyrone/swift,JaSpa/swift,jmgc/swift,zisko/swift,russbishop/swift,ben-ng/swift,CodaFi/swift,bitjammer/swift,uasys/swift,danielmartin/swift,tjw/swift,hooman/swift,aschwaighofer/swift,frootloops/swift,gribozavr/swift,lorentey/swift,aschwaighofer/swift,gregomni/swift,tkremenek/swift,amraboelela/swift,natecook1000/swift,lorentey/swift,djwbrown/swift,swiftix/swift,practicalswift/swift,practicalswift/swift,CodaFi/swift,felix91gr/swift,tkremenek/swift,huonw/swift,manavgabhawala/swift,kperryua/swift,brentdax/swift,JaSpa/swift,modocache/swift,alblue/swift,jckarter/swift,hughbe/swift,OscarSwanros/swift,codestergit/swift,swiftix/swift,jckarter/swift,stephentyrone/swift,harlanhaskins/swift,kstaring/swift,parkera/swift,gmilos/swift,devincoughlin/swift,xwu/swift,kperryua/swift,benlangmuir/swift,jmgc/swift,hughbe/swift,shajrawi/swift,uasys/swift,austinzheng/swift,Jnosh/swift,atrick/swift,codestergit/swift,calebd/swift,hooman/swift,shajrawi/swift,swiftix/swift,devincoughlin/swift,hooman/swift,shajrawi/swift,JaSpa/swift,atrick/swift,karwa/swift,kperryua/swift,jtbandes/swift,gregomni/swift,airspeedswift/swift,djwbrown/swift,shahmishal/swift,xedin/swift,return/swift,alblue/swift,natecook1000/swift,milseman/swift,russbishop/swift,JGiola/swift,sschiau/swift,karwa/swift,hughbe/swift,allevato/swift,tardieu/swift,jckarter/swift,amraboelela/swift,austinzheng/swift,felix91gr/swift,xedin/swift,zisko/swift,tkremenek/swift,shajrawi/swift,JaSpa/swift,devincoughlin/swift,russbishop/swift,roambotics/swift,parkera/swift,codestergit/swift,aschwaighofer/swift,modocache/swift,airspeedswift/swift,atrick/swift,russbishop/swift,brentdax/swift,codestergit/swift,brentdax/swift,alblue/swift,swiftix/swift,gribozavr/swift,swiftix/swift,gregomni/swift,gribozavr/swift,hooman/swift,ben-ng/swift,jmgc/swift,tardieu/swift,stephentyrone/swift,modocache/swift,jmgc/swift,karwa/swift,milseman/swift,shahmishal/swift,xwu/swift,apple/swift,gottesmm/swift,harlanhaskins/swift,jopamer/swift,amraboelela/swift,apple/swift,jckarter/swift,karwa/swift,jtbandes/swift,manavgabhawala/swift,jopamer/swift,Jnosh/swift,ben-ng/swift,CodaFi/swift,arvedviehweger/swift,gregomni/swift,zisko/swift,modocache/swift,sschiau/swift,lorentey/swift,return/swift,airspeedswift/swift,karwa/swift,sschiau/swift,benlangmuir/swift,kstaring/swift,bitjammer/swift,amraboelela/swift,nathawes/swift,danielmartin/swift,bitjammer/swift,djwbrown/swift,danielmartin/swift,shahmishal/swift,jckarter/swift,calebd/swift,deyton/swift,IngmarStein/swift,kperryua/swift,JaSpa/swift,roambotics/swift,apple/swift,kstaring/swift,aschwaighofer/swift,IngmarStein/swift,danielmartin/swift,djwbrown/swift,bitjammer/swift,CodaFi/swift,djwbrown/swift,austinzheng/swift,JGiola/swift,uasys/swift,therealbnut/swift