code: NameAndType readNameAndType(int i) {
          Object obj = readPool(i);
          if (obj != null && !(obj instanceof NameAndType))
              throw badClassFile("bad.const.pool.entry",
                                 currentClassFile.toString(),
                                 "CONSTANT_NameAndType_info", i);
          return (NameAndType)obj;
      }
docs: Read name and type.