Extend the lifetime of the buffer while copying from a _CocoaArrayWrapper
Extend the lifetime of the buffer while copying from a _CocoaArrayWrapper

Fixes rdar://90108215.

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