Fixed a location where we would never end up unlocking our mutex in the ClusterManager. Also switched to using Mutex::Locker where we can.
Fixed a location where we would never end up unlocking our mutex in
the ClusterManager. Also switched to using Mutex::Locker where we can.



git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@149132 91177308-0d34-0410-b5e6-96231b3b80d8

apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb