Bad error message if parameter for function is unknown

[fingenerf]

time_to_process_order and estimated_earliest_starting_time is defined as follows

number function time_to_process_order(Complexity complexity) = 
	if (complexity == C0)
		120
	else if (complexity == C1)
		180
	else if (complexity == C2)
		240
	else if (complexity == C3)
		300
	else
		1020 // A full game lasts 17min = 1020s

number function estimated_earliest_starting_time(number order_id) = (order_delivery_period_begin(order_id) - time_to_process_order(order_complexity(order_id))) + 60

If the following test is done with the unknown variable id
test(game_time().sec > estimated_earliest_starting_time(id));
the error message is:

Parsing /home/praktikum/labhlap2/rapha/fawkes-robotino-labhlap2019/src/gologpp/rcll_production/rcll_production.gpp...
Syntax error at line 44:

	test(game_time().sec > estimated_earliest_starting_time(id));
	                       ^ Expected: <typed_expression>
15:18:00.785268 FawkesMainThread: Failed to load plugins ros,navgraph,flite,skiller,gologpp, exception follows
15:18:00.785283 FawkesMainThread: [EXCEPTION] Caught std::exception: boost::spirit::qi::expectation_failure
15:18:00.785283 FawkesMainThread: [EXCEPTION] Could not initialize thread 'gologpp_agent' (ThreadList gologpp)
15:18:00.785283 FawkesMainThread: [EXCEPTION] Plugin >>> gologpp <<< could not be initialized, unloading