(lldb) up 5
openttd was compiled with optimization - stepping may behave oddly; variables may not be available.
frame #5: 0x000000010014b185 openttd`RoadVehicle::GetMaxTrackSpeed(this=<unavailable>) const at roadveh.h:278:10 [opt]
   275 		 */
   276 		inline uint16 GetMaxTrackSpeed() const
   277 		{
-> 278 			return GetRoadTypeInfo(GetRoadType(this->tile, GetRoadTramType(this->roadtype)))->max_speed;
   279 		}
   280 	
   281 		/**
(lldb) print this->roadtype
error: warning: Stopped in a C++ method, but 'this' isn't available; pretending we are in a generic context
error: invalid use of 'this' outside of a non-static member function