(svn r27427) -Fix: Use the NewGRF railtype sorting order in the infrastructure window.

src/rail.h

@@ -431,4 +431,13 @@ void ResetRailTypes();
 void InitRailTypes();
 RailType AllocateRailType(RailTypeLabel label);
 
+extern RailType _sorted_railtypes[RAILTYPE_END];
+extern uint8 _sorted_railtypes_size;
+
+/**
+ * Loop header for iterating over railtypes, sorted by sortorder.
+ * @param var Railtype.
+ */
+#define FOR_ALL_SORTED_RAILTYPES(var) for (uint8 index = 0; index < _sorted_railtypes_size && (var = _sorted_railtypes[index], true) ; index++)
+
 #endif /* RAIL_H */