[silgen] Split the Base emission code out of visitRec into their own helper functions.
[silgen] Split the Base emission code out of visitRec into their own helper functions.

It makes the code easier to read.

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