SIL: Don't require shared functions to have bodies in raw SIL
SIL: Don't require shared functions to have bodies in raw SIL

We don't IRGen raw SIL, and once mandatory inlining and mandatory
linking are performed in separate passes, this invariant no longer
holds.

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