docs: public final static int typeNameKeyWordFromMask(int possible_names, int length) {
          int kw = KEYWORD_unrecognized;
          if (possible_names != IonTokenConstsX.KW_ALL_BITS) {
              for (int ii=0; ii<typeNameBits.length; ii++) {
                  int tb = typeNameBits[ii];
                  if (tb == possible_names) {
                      if (typeNameNames[ii].length() == length) {
                          kw = typeNameKeyWordIds[ii];
                      }
                      break;
                  }
              }
          }
          return kw;
      }