static LL<S> tok_findMainFunctionsNamed(S src, S... names) {
  HashSet<S> namesSet = asHashSet(names);
  new LL<S> out;
  for (L<S> tok : tok_findMainFunctions(src)) {
    S name = tok_functionName(tok);
    if (namesSet.contains(name))
      out.add(tok);
  }
  ret out;
}