[NFC] Ditch SaveAndRestore for Local Resolvers
[NFC] Ditch SaveAndRestore for Local Resolvers

Now that TypeResolvers and TypeResolution objects are cheap and easy to create, just use them instead of emplacing resolutions into the current resolver.

parkera/swift,tkremenek/swift,hooman/swift,roambotics/swift,tkremenek/swift,gregomni/swift,atrick/swift,CodaFi/swift,apple/swift,allevato/swift,benlangmuir/swift,CodaFi/swift,benlangmuir/swift,jmgc/swift,tkremenek/swift,rudkx/swift,allevato/swift,tkremenek/swift,CodaFi/swift,glessard/swift,apple/swift,benlangmuir/swift,nathawes/swift,benlangmuir/swift,roambotics/swift,hooman/swift,jmgc/swift,jmgc/swift,rudkx/swift,atrick/swift,glessard/swift,ahoppen/swift,roambotics/swift,atrick/swift,CodaFi/swift,CodaFi/swift,parkera/swift,rudkx/swift,JGiola/swift,hooman/swift,roambotics/swift,hooman/swift,CodaFi/swift,JGiola/swift,rudkx/swift,hooman/swift,ahoppen/swift,nathawes/swift,gregomni/swift,allevato/swift,nathawes/swift,xwu/swift,gregomni/swift,atrick/swift,tkremenek/swift,parkera/swift,xwu/swift,nathawes/swift,xwu/swift,tkremenek/swift,nathawes/swift,glessard/swift,xwu/swift,rudkx/swift,JGiola/swift,xwu/swift,parkera/swift,nathawes/swift,jmgc/swift,xwu/swift,tkremenek/swift,ahoppen/swift,allevato/swift,atrick/swift,rudkx/swift,ahoppen/swift,hooman/swift,gregomni/swift,parkera/swift,xwu/swift,benlangmuir/swift,parkera/swift,nathawes/swift,ahoppen/swift,roambotics/swift,allevato/swift,parkera/swift,glessard/swift,jmgc/swift,gregomni/swift,gregomni/swift,JGiola/swift,glessard/swift,allevato/swift,JGiola/swift,jmgc/swift,apple/swift,glessard/swift,hooman/swift,apple/swift,roambotics/swift,CodaFi/swift,apple/swift,atrick/swift,parkera/swift,jmgc/swift,apple/swift,allevato/swift,JGiola/swift,benlangmuir/swift,ahoppen/swift