[CodeCompletion] Factor out actor isolation analysis
[CodeCompletion] Factor out actor isolation analysis

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