Fix _StringObject.init(object:...)
Fix _StringObject.init(object:...)

Add a missing fix_lifetime. This miscompiles with OSSA because
`object` is destroyed before `bridgeObject` is retained.

Reinterpreting a reference to a trivial type always requires a
fix_lifetime.

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