[Type checker] Get all conformances for externally-defined types.
[Type checker] Get all conformances for externally-defined types.

IR generation depends on these when it emits type metadata.

JGiola/swift,jckarter/swift,natecook1000/swift,apple/swift,practicalswift/swift,hooman/swift,danielmartin/swift,jopamer/swift,tkremenek/swift,devincoughlin/swift,allevato/swift,roambotics/swift,jmgc/swift,alblue/swift,shahmishal/swift,nathawes/swift,xedin/swift,gribozavr/swift,jopamer/swift,nathawes/swift,apple/swift,gribozavr/swift,shahmishal/swift,JGiola/swift,xwu/swift,karwa/swift,glessard/swift,natecook1000/swift,jopamer/swift,gregomni/swift,shajrawi/swift,shajrawi/swift,xwu/swift,benlangmuir/swift,brentdax/swift,xedin/swift,lorentey/swift,danielmartin/swift,karwa/swift,xwu/swift,amraboelela/swift,nathawes/swift,airspeedswift/swift,practicalswift/swift,xedin/swift,shahmishal/swift,austinzheng/swift,xwu/swift,allevato/swift,rudkx/swift,brentdax/swift,harlanhaskins/swift,brentdax/swift,natecook1000/swift,sschiau/swift,allevato/swift,tkremenek/swift,gribozavr/swift,shahmishal/swift,benlangmuir/swift,austinzheng/swift,CodaFi/swift,shahmishal/swift,ahoppen/swift,brentdax/swift,harlanhaskins/swift,harlanhaskins/swift,alblue/swift,glessard/swift,sschiau/swift,austinzheng/swift,atrick/swift,aschwaighofer/swift,roambotics/swift,tkremenek/swift,shajrawi/swift,jopamer/swift,rudkx/swift,shahmishal/swift,amraboelela/swift,airspeedswift/swift,shahmishal/swift,aschwaighofer/swift,brentdax/swift,atrick/swift,amraboelela/swift,lorentey/swift,airspeedswift/swift,sschiau/swift,gregomni/swift,CodaFi/swift,jckarter/swift,hooman/swift,devincoughlin/swift,ahoppen/swift,practicalswift/swift,karwa/swift,sschiau/swift,jmgc/swift,glessard/swift,parkera/swift,sschiau/swift,harlanhaskins/swift,nathawes/swift,practicalswift/swift,nathawes/swift,karwa/swift,allevato/swift,stephentyrone/swift,gregomni/swift,stephentyrone/swift,CodaFi/swift,gribozavr/swift,alblue/swift,karwa/swift,ahoppen/swift,xedin/swift,rudkx/swift,austinzheng/swift,harlanhaskins/swift,parkera/swift,alblue/swift,jmgc/swift,devincoughlin/swift,parkera/swift,amraboelela/swift,jckarter/swift,CodaFi/swift,glessard/swift,ahoppen/swift,danielmartin/swift,shajrawi/swift,danielmartin/swift,jmgc/swift,xedin/swift,stephentyrone/swift,lorentey/swift,roambotics/swift,aschwaighofer/swift,gribozavr/swift,aschwaighofer/swift,natecook1000/swift,stephentyrone/swift,jopamer/swift,brentdax/swift,danielmartin/swift,alblue/swift,airspeedswift/swift,jopamer/swift,sschiau/swift,airspeedswift/swift,lorentey/swift,atrick/swift,amraboelela/swift,xwu/swift,jmgc/swift,gribozavr/swift,danielmartin/swift,tkremenek/swift,allevato/swift,alblue/swift,ahoppen/swift,devincoughlin/swift,hooman/swift,parkera/swift,natecook1000/swift,sschiau/swift,austinzheng/swift,lorentey/swift,harlanhaskins/swift,xwu/swift,rudkx/swift,lorentey/swift,jmgc/swift,glessard/swift,stephentyrone/swift,hooman/swift,allevato/swift,devincoughlin/swift,amraboelela/swift,airspeedswift/swift,ahoppen/swift,xedin/swift,nathawes/swift,natecook1000/swift,practicalswift/swift,shajrawi/swift,atrick/swift,apple/swift,hooman/swift,aschwaighofer/swift,JGiola/swift,apple/swift,jckarter/swift,allevato/swift,xwu/swift,lorentey/swift,shajrawi/swift,benlangmuir/swift,harlanhaskins/swift,alblue/swift,gribozavr/swift,jopamer/swift,tkremenek/swift,stephentyrone/swift,roambotics/swift,rudkx/swift,danielmartin/swift,karwa/swift,practicalswift/swift,xedin/swift,JGiola/swift,shahmishal/swift,devincoughlin/swift,austinzheng/swift,gregomni/swift,atrick/swift,roambotics/swift,sschiau/swift,tkremenek/swift,hooman/swift,amraboelela/swift,parkera/swift,benlangmuir/swift,CodaFi/swift,JGiola/swift,devincoughlin/swift,nathawes/swift,CodaFi/swift,roambotics/swift,hooman/swift,gribozavr/swift,rudkx/swift,karwa/swift,CodaFi/swift,stephentyrone/swift,atrick/swift,gregomni/swift,parkera/swift,airspeedswift/swift,gregomni/swift,benlangmuir/swift,apple/swift,aschwaighofer/swift,apple/swift,jckarter/swift,karwa/swift,shajrawi/swift,shajrawi/swift,tkremenek/swift,brentdax/swift,benlangmuir/swift,glessard/swift,jckarter/swift,practicalswift/swift,practicalswift/swift,austinzheng/swift,devincoughlin/swift,xedin/swift,natecook1000/swift,parkera/swift,jckarter/swift,JGiola/swift,lorentey/swift,jmgc/swift,aschwaighofer/swift,parkera/swift