Separate tor's IPv4 and IPv6 reachability flags
In legacy/trac#33222 (moved), I make tor build circuits to IPv4 and IPv6 ORPorts.
But we also need to detect IPv4 and IPv6 reachability separately.
In legacy/trac#33222 (moved), I make tor build circuits to IPv4 and IPv6 ORPorts.
But we also need to detect IPv4 and IPv6 reachability separately.