What we used to call the ANO has been a CAA CAP for a long time. (CAP393)
No, what we used to call the ANO is still called the ANO (SI 2009 No.3015). An edited copy of the ANO is included as Section 1 of CAP393 but it is only the SI itself that has any legal standing.
The definition of flight time is included in FCL.010 but does not help resolve the issue of whether, for the purposes of revalidation, passenger time may be counted. If anyone
really thinks that it is reasonable to count passenger time, I suggest they should go ahead and try to find an FE who will sign the revalidation certificate on that basis.