static LPair<Int, LS> phraseCache_findAllPhrases(PhraseCache cache, LS tok) {
  LPair<Int, LS> out = new L;
  if (cache != null) for (int i = 1; i < l(tok); i += 2) {
    L<LS> phrases = cache.byFirstWord.get(tok.get(i));
    for (LS phrase : phrases)
      if (codeTokenSubListEqualsIC_skipFirst(tok, phrase, i))
        out.add(pair(i, phrase));
  }
  ret out;
}