NFC: fix range loop analysis warning. (#38747)
NFC: fix range loop analysis warning. (#38747)

Silence warning by using reference type (`&`) to avoid creating a copy.
benlangmuir/swift,apple/swift,xwu/swift,glessard/swift,roambotics/swift,rudkx/swift,gregomni/swift,roambotics/swift,benlangmuir/swift,JGiola/swift,benlangmuir/swift,rudkx/swift,apple/swift,rudkx/swift,atrick/swift,gregomni/swift,glessard/swift,hooman/swift,rudkx/swift,rudkx/swift,roambotics/swift,benlangmuir/swift,apple/swift,ahoppen/swift,glessard/swift,xwu/swift,xwu/swift,JGiola/swift,atrick/swift,rudkx/swift,JGiola/swift,gregomni/swift,hooman/swift,xwu/swift,xwu/swift,atrick/swift,glessard/swift,gregomni/swift,ahoppen/swift,roambotics/swift,ahoppen/swift,hooman/swift,ahoppen/swift,gregomni/swift,xwu/swift,benlangmuir/swift,ahoppen/swift,hooman/swift,apple/swift,glessard/swift,JGiola/swift,atrick/swift,roambotics/swift,glessard/swift,atrick/swift,atrick/swift,JGiola/swift,JGiola/swift,xwu/swift,hooman/swift,benlangmuir/swift,apple/swift,apple/swift,hooman/swift,roambotics/swift,hooman/swift,ahoppen/swift,gregomni/swift