We've been bitten twice by the broken Scope handling for the shared TCP Listener: #3181 #3142

From: https://github.com/libp2p/go-libp2p/blob/master/p2p/transport/tcpreuse/listener.go#L198

// Bugs around multiple calls to OpenConnection or InterceptAccept are prevented by the transport
// integration tests.

This is clearly not true. So far, we've run into two configurations that we weren't testing for.

Intuitively, we want to pass the scope explicitly between the layers:
TCPReuse -> TCP -> Upgrader
TCPReuse -> WebSocket -> Upgrader

Currently TCPReuse sets up the Scope for the Upgrader but any wrapping done in the transports hides the Scope.