static LinkedHashMap lambdaMapLike mapValuesToLinkedHashMap(O func, Map map) {
  new LinkedHashMap m;
  for (O key : keys(map))
    m.put(key, callF(func, map.get(key)));
  ret m;
}

static <A, B, C> LinkedHashMap<A, C> mapValuesToLinkedHashMap(Map<A, B> map, IF1<B, C> f) {
  ret mapValuesToLinkedHashMap(f, map);
}

static <A, B, C> LinkedHashMap<A, C> mapValuesToLinkedHashMap(IF1<B, C> f, Map<A, B> map) {
  ret mapValuesToLinkedHashMap((O) f, map);
}

static LinkedHashMap mapValuesToLinkedHashMap(Map map, O func) {
  ret mapValuesToLinkedHashMap(func, map);
}

Began life as a copy of #1004652