[ORC-RT][MachO] Add RecordSectionsTracker utility to track metadata sections.

Newly added sections can be processed by calling processNewSections. Calling
reset moves all sections back to the "new" state for reprocessing (expected to
be used by dlclose).

GitOrigin-RevId: 873584b6cb811b0245d79b5dba52758d3d049bb8
1 file changed