(svn r9808) -Codechange: unify the Handle<VehicleType>Loading functions.

src/vehicle.h

@@ -316,6 +316,13 @@ struct Vehicle {
 	void BeginLoading();
 	void LeaveStation();
 
+	/**
+	 * Handle the loading of the vehicle; when not it skips through dummy
+	 * orders and does nothing in all other cases.
+	 * @param mode is the non-first call for this vehicle in this tick?
+	 */
+	void HandleLoading(bool mode = false);
+
 	/**
 	 * An overriden version of new, so you can use the vehicle instance
 	 * instead of a newly allocated piece of memory.