Since 5d1f60439a we have
this node's host_id in topology config, so it can be used
to determine this node when adding it.
Prepare for extending the token_metadata interface
to provide host_id in update_topology.
We would like to compare the host_id first to be able to distinguish
this node from a node we're replacing that may have the same ip address
(but different host_id).
Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
115462be17