IRGen: Use maximal resilience expansion to lower SIL types
IRGen: Use maximal resilience expansion to lower SIL types

It looks like most or all places where we call these functions only care
about the lowered AST type, so this should be NFC.

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