We used to separate implicit connection requests (ie. timed retries
for important peers) and explicit ones, and send a
WIRE_CONNECTCTL_CONNECT_TO_PEER_RESULT for the latter.
In the success case, that's now redundant, since we hand the connected
peer to the master using WIRE_CONNECT_PEER_CONNECTED; we just need a
message for the failure case. And we might as well tell the master
every failure, so we don't have to distinguish internally.
This also solves a race we had before: connectd would send
WIRE_CONNECTCTL_CONNECT_TO_PEER_RESULT which completes the incoming
JSON connect command, then send WIRE_CONNECT_PEER_CONNECTED. So
there's a window where the JSON command can return, but the peer isn't
known to lightningd yet.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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