/// <summary>
/// Push a debug.traceback reference onto the stack, for a pcall function to use as error handler. (Remember to increment any top-of-stack markers!)
/// </summary>
private static int PushDebugTraceback(LuaState luaState, int argCount)
{
luaState.GetGlobal("debug");
luaState.GetField(-1, "traceback");
luaState.Remove(-2);
int errindex = -argCount - 2;
luaState.Insert(errindex);
return(errindex);
}