(lldb) up 4
openttd was compiled with optimization - stepping may behave oddly; variables may not be available.
frame #4: 0x000000010014c209 openttd`GetRoadTypeInfo(roadtype=<unavailable>) at road.h:229:2 [opt]
   226 	static inline const RoadTypeInfo *GetRoadTypeInfo(RoadType roadtype)
   227 	{
   228 		extern RoadTypeInfo _roadtypes[ROADTYPE_END];
-> 229 		assert(roadtype < ROADTYPE_END);
   230 		return &_roadtypes[roadtype];
   231 	}
   232