giles 6456bd927a Fix bytecode when/do/perform: snapshot pending_cek in resume closure ...

Root cause: nested cek_call_or_suspend calls on the same VM (from
synchronous callbacks like dom-listen firing handler immediately)
overwrote pending_cek before the first resume ran.

Fix: _vm_suspension_to_dict snapshots pending_cek at capture time
and restores it in the resume closure before calling resume_vm.
This ensures each suspension's CEK state is preserved regardless
of nested overwrite.

test_bytecode_repeat.js: 4/4 pass (was 3/4).
Source: 6 suspensions ✓  Bytecode: 6 suspensions ✓

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

2026-04-08 21:34:10 +00:00

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