(svn r4131) - CodeChange: Add proper semantics for StationID for such variables instead of using the general uint16-type. StationID was added for depots, waypoints and stations where necessary. We probably need to change GetDepot(), IsDepotIndex(), IsStationIndex(), GetWaypoint() and IsWaypointIndex() as well to use StationID.

openttd.h

@@ -61,6 +61,7 @@ typedef struct NewsItem NewsItem;
 typedef struct Industry Industry;
 typedef struct DrawPixelInfo DrawPixelInfo;
 typedef uint16 VehicleID;
+typedef uint16 StationID;
 typedef uint16 TownID;
 typedef byte PlayerID;
 typedef byte OrderID;