Fix `Node::rpc_config` return error

Fix StringName type checks in other `_rpc*_bind` methods.

scene/main/node.cpp

@@ -462,7 +462,7 @@ uint16_t Node::rpc_config(const StringName &p_method, MultiplayerAPI::RPCMode p_
 		nd.name = p_method;
 		nd.mode = p_mode;
 		data.rpc_methods.push_back(nd);
-		return ((uint16_t)data.rpc_properties.size() - 1) | (1 << 15);
+		return ((uint16_t)data.rpc_methods.size() - 1) | (1 << 15);
 	} else {
 		int c_mid = (~(1 << 15)) & mid;
 		data.rpc_methods.write[c_mid].mode = p_mode;
@@ -551,7 +551,7 @@ Variant Node::_rpc_bind(const Variant **p_args, int p_argcount, Callable::CallEr
 		return Variant();
 	}
 
-	if (p_args[0]->get_type() != Variant::STRING) {
+	if (p_args[0]->get_type() != Variant::STRING_NAME) {
 		r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT;
 		r_error.argument = 0;
 		r_error.expected = Variant::STRING;
@@ -580,7 +580,7 @@ Variant Node::_rpc_id_bind(const Variant **p_args, int p_argcount, Callable::Cal
 		return Variant();
 	}
 
-	if (p_args[1]->get_type() != Variant::STRING) {
+	if (p_args[1]->get_type() != Variant::STRING_NAME) {
 		r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT;
 		r_error.argument = 1;
 		r_error.expected = Variant::STRING;
@@ -603,7 +603,7 @@ Variant Node::_rpc_unreliable_bind(const Variant **p_args, int p_argcount, Calla
 		return Variant();
 	}
 
-	if (p_args[0]->get_type() != Variant::STRING) {
+	if (p_args[0]->get_type() != Variant::STRING_NAME) {
 		r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT;
 		r_error.argument = 0;
 		r_error.expected = Variant::STRING;
@@ -632,7 +632,7 @@ Variant Node::_rpc_unreliable_id_bind(const Variant **p_args, int p_argcount, Ca
 		return Variant();
 	}
 
-	if (p_args[1]->get_type() != Variant::STRING) {
+	if (p_args[1]->get_type() != Variant::STRING_NAME) {
 		r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT;
 		r_error.argument = 1;
 		r_error.expected = Variant::STRING;