[unittest/Sema] NFC: Switch to use `AttributedImport` instead of deprecated `ImportedModuleDesc`
[unittest/Sema] NFC: Switch to use `AttributedImport` instead of deprecated `ImportedModuleDesc`

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