static Method mostApplicableMethod_onTypes(Iterable<Method> methods, Class... argTypes) {
  new Lowest<Method> best;
  if (methods != null) for (Method m : methods) {
    int score = methodApplicabilityScore_onTypes(m, argTypes);
    print ifdef mostApplicableMethod_onTypes_debug("Method score: " + m + " " + score);
    if (score < Int.MAX_VALUE)
      best.put(m, score);
  }
  ret best!;
}