Determines with a rather naive way of determining at run time if a method is empty.

ismethodempty.cs

    Action<int> gfa = k => { };
    var il = gfa.Method.GetMethodBody().GetILAsByteArray().Where(b => b != OpCodes.Nop.Value).ToArray();
    if (il.Length == 0 || (il.Length == 1 && il[0] == OpCodes.Ret.Value))
    {
        Debug.WriteLine("Empty!");
    }
    else
    {
        Debug.WriteLine("Not empty!");
    }