Sema: Refactor resolveTopLevelIdentTypeComponent() a little
Sema: Refactor resolveTopLevelIdentTypeComponent() a little

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