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