Now that CheckUser writes to the new tables for event table migration (T330158), reading from these tables when the migration stage is set to read new can commence.
This task is to add support to read new in Special:CheckUser's 'Get users' mode.
Acceptance criteria
- Alias the current query info fields in CheckUserGetUsersPager to prepare for migration
- Add code to read from the two new tables when reading new in CheckUserGetUsersPager