Add named opaque type test cases for patterns and subscripts
Add named opaque type test cases for patterns and subscripts

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