giles a823e59376 Fix root cause: skip JIT for closure lambdas in BOTH hook and vm_call ...

The closure check was only in vm_call (sx_vm.ml) but inner functions
like read-list-loop were also compiled through the JIT hook in
sx_server.ml. The hook compiled them with closure merging, producing
incorrect bytecode (read-list-loop mishandled closing parens).

Added the same closure check to the JIT hook: skip lambdas with
non-empty closures. Now sx-parse works correctly:
  (a (b) (c)) → 3 siblings, not (a (b (c)))

Pre-compiled count increased from 17 to 33 — more top-level
functions compiled (inner ones correctly skipped to CEK).

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

2026-03-23 19:24:14 +00:00

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