- REMEMBER <name>: SwiftForth-style re-runnable marker -- restores
to just AFTER its own definition and survives execution. The
edit-reload-test loop: REMEMBER fresh ... fresh ... fresh.
- EMPTY rolls back to the boot dictionary; GILD re-baselines EMPTY
to the current state. Baseline captured at VM construction.
- MarkerState now also snapshots search order, wid allocation,
compilation wordlist, REPLACES table, and ABORT" texts; restore
discards marker entries newer than the snapshot (was: newer than
the executing marker id only).
- Shared snapshot_marker_state/apply_marker_state used by MARKER,
REMEMBER, EMPTY, and GILD.
Known ambiguity (standard-conformant): a DEFER defined before a
marker but retargeted at a word defined after it dangles after
rollback; stale function-table slots are name-unreachable and get
overwritten by later definitions.
Oleksandr Kozachuk
e31407ab58