giles 719da7914e Multi-shot delimited continuations: 868/870 passing ...

Continuations are now multi-shot — k can be invoked multiple times.
Each invocation runs the captured frames via nested cek-run and
returns the result to the caller's continuation.

Fix: continue-with-call runs ONLY the captured delimited frames
(not rest-kont), so the continuation terminates and returns rather
than escaping to the outer program.

Fixed 4 continuation tests:
- shift with multiple invokes: (list (k 10) (k 20)) → (11 21)
- k returned from reset: continuation callable after escaping
- invoke k multiple times: same k reusable
- k in data structure: store in list, retrieve, invoke

Remaining 2 failures: scope/provide across shift boundaries.
These need scope state tracked in frames (not imperative push/pop).

JS 747/747, Full 868/870, Python 679/679.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-03-15 14:20:31 +00:00

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