channeld: use an enum side not a bool for funder/

This predated our handling of enums.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

lightningd/channel/channel.c

@@ -1950,7 +1950,7 @@ static void init_channel(struct peer *peer)
 	u64 local_msatoshi;
 	struct pubkey funding_pubkey[NUM_SIDES];
 	struct sha256_double funding_txid;
-	bool am_funder;
+	enum side funder;
 	enum htlc_state *hstates;
 	struct fulfilled_htlc *fulfilled;
 	enum side *fulfilled_sides;
@@ -1976,7 +1976,7 @@ static void init_channel(struct peer *peer)
 				   &points[REMOTE].delayed_payment,
 				   &peer->remote_per_commit,
 				   &peer->old_remote_per_commit,
-				   &am_funder,
+				   &funder,
 				   &peer->fee_base,
 				   &peer->fee_per_satoshi,
 				   &local_msatoshi,
@@ -2015,7 +2015,7 @@ static void init_channel(struct peer *peer)
 		     " next_idx_local = %"PRIu64
 		     " next_idx_remote = %"PRIu64
 		     " revocations_received = %"PRIu64,
-		     am_funder ? "LOCAL" : "REMOTE",
+		     side_to_str(funder),
 		     type_to_string(trc, struct pubkey,
 				    &peer->remote_per_commit),
 		     type_to_string(trc, struct pubkey,
@@ -2043,7 +2043,7 @@ static void init_channel(struct peer *peer)
 				    &points[LOCAL], &points[REMOTE],
 				    &funding_pubkey[LOCAL],
 				    &funding_pubkey[REMOTE],
-				    am_funder ? LOCAL : REMOTE);
+				    funder);
 
 	if (!channel_force_htlcs(peer->channel, htlcs, hstates,
 				 fulfilled, fulfilled_sides,

lightningd/channel/channel_wire.csv

@@ -36,7 +36,7 @@ channel_init,,payment_basepoint,33
 channel_init,,delayed_payment_basepoint,33
 channel_init,,remote_per_commit,33
 channel_init,,old_remote_per_commit,33
-channel_init,,am_funder,bool
+channel_init,,funder,enum side
 channel_init,,fee_base,4
 channel_init,,fee_proportional,4
 channel_init,,local_msatoshi,8

lightningd/peer_control.c

@@ -1201,7 +1201,7 @@ static bool peer_start_channeld(struct peer *peer,
 				      &peer->channel_info->theirbase.delayed_payment,
 				      &peer->channel_info->remote_per_commit,
 				      &peer->channel_info->old_remote_per_commit,
-				      peer->funder == LOCAL,
+				      peer->funder,
 				      cfg->fee_base,
 				      cfg->fee_per_satoshi,
 				      *peer->balance,