rdar://problem/11374963
rdar://problem/11374963

Fix a subtle ArchSpec::cores_match() logic issue which prevents the add-dsym command
to add a debug symbol file to one of the target's current modules.


git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@162802 91177308-0d34-0410-b5e6-96231b3b80d8

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