[ShrinkBorrowScope] Replaced map with set.
[ShrinkBorrowScope] Replaced map with set.

The keys weren't used.

ahoppen/swift,ahoppen/swift,glessard/swift,JGiola/swift,ahoppen/swift,roambotics/swift,apple/swift,rudkx/swift,JGiola/swift,benlangmuir/swift,rudkx/swift,ahoppen/swift,benlangmuir/swift,JGiola/swift,atrick/swift,glessard/swift,roambotics/swift,rudkx/swift,glessard/swift,rudkx/swift,gregomni/swift,atrick/swift,JGiola/swift,apple/swift,apple/swift,apple/swift,ahoppen/swift,atrick/swift,glessard/swift,rudkx/swift,gregomni/swift,roambotics/swift,apple/swift,gregomni/swift,benlangmuir/swift,benlangmuir/swift,glessard/swift,roambotics/swift,apple/swift,gregomni/swift,JGiola/swift,gregomni/swift,glessard/swift,JGiola/swift,benlangmuir/swift,roambotics/swift,ahoppen/swift,benlangmuir/swift,atrick/swift,atrick/swift,gregomni/swift,rudkx/swift,roambotics/swift,atrick/swift