(svn r11128) -Fix: a lot of graphical glitches by changing some bounding boxes. It's not perfect yet, but a *very* good step into the right direction. Patch by frosch.

src/rail.h

@@ -788,6 +788,7 @@ void DrawDefaultWaypointSprite(int x, int y, RailType railtype);
  * @see DrawCatenaryRailway
  */
 void DrawCatenary(const TileInfo *ti);
+void DrawCatenaryOnTunnel(const TileInfo *ti);
 
 Foundation GetRailFoundation(Slope tileh, TrackBits bits);