[silgen] Mark CleanupManager::dump() as used and wrap it in a debugger only warning.
[silgen] Mark CleanupManager::dump() as used and wrap it in a debugger only warning.

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