giles df89d8249b Transpiler native record support for VM types (Step 5.5 unblock) ...

- Add VmFrame/VmMachine types to sx_types.ml (alongside CekState/CekFrame)
- Add VmFrame/VmMachine value variants to the value sum type
- Extend get_val in sx_runtime.ml to dispatch on VmFrame/VmMachine fields
- Extend sx_dict_set_b for VmFrame/VmMachine field mutation
- Extend transpiler ml-emit-dict-native to detect VM dict patterns
  and emit native OCaml record construction (same mechanism as CekState)
- Retranspile evaluator — no diff (transpiler extension is additive)
- Update bootstrap_vm.py output location

The transpiler now handles 4 native record types:
  CekState (5 fields), CekFrame (10 fields),
  VmFrame (4 fields), VmMachine (5 fields)

Full VM replacement (sx_vm.ml → transpiled) still needs vm.sx
feature parity: JIT dispatch, CEK fallback, suspension handling.

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

2026-04-04 12:39:20 +00:00

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