Merge branch 'en/xdiff-cleanup-3' into next

Merge branch 'en/xdiff-cleanup-3' into next

Preparation of the xdiff/ codebase to work with Rust.

* en/xdiff-cleanup-3:
  xdiff/xdl_cleanup_records: make execution of action easier to follow
  xdiff/xdl_cleanup_records: make setting action easier to follow
  xdiff/xdl_cleanup_records: make limits more clear
  xdiff/xdl_cleanup_records: use unambiguous types
  xdiff: use unambiguous types in xdl_bogo_sqrt()
  xdiff/xdl_cleanup_records: delete local recs pointer