Brandon Lucas d8e01fd174 feat: implement Cranelift JIT compiler for native code execution ...

Add a JIT compiler using Cranelift that compiles Lux functions to native
machine code. Achieves ~160x speedup over the tree-walking interpreter
(fib(30): 11.59ms JIT vs 1.87s interpreter).

Supports: arithmetic, comparisons, conditionals, let bindings, function
calls, and recursion. Compile time overhead is minimal (~500µs).

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

2026-02-13 17:11:19 -05:00

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