(svn r18764) -Fix [FS#3422]: split the (un)load ticks counter and signal wait counter; sometimes they might get into eachother's way

src/train.h

@@ -114,6 +114,9 @@ struct Train : public SpecializedVehicle<Train, VEH_TRAIN> {
 	RailTypeByte railtype;
 	RailTypes compatible_railtypes;
 
+	/** Ticks waiting in front of a signal, ticks being stuck or a counter for forced proceeding through signals. */
+	uint16 wait_counter;
+
 	/** We don't want GCC to zero our struct! It already is zeroed and has an index! */
 	Train() : SpecializedVehicle<Train, VEH_TRAIN>() {}
 	/** We want to 'destruct' the right class. */