code: public boolean recordIdGenerator() {
      if (!currentInfo.isIdGenerator()) {
        currentInfo.setIdGenerator(true);
        populated = true;
        return true;
      } else {
        return false;
      }
    }
docs: Records that the {@link JSDocInfo} being built should have its
  {@link JSDocInfo#isIdGenerator()} flag set to
  {@code true}.
  
  @return {@code true} if the idGenerator flag was recorded and {@code false}
  if it was already recorded