hakorune/examples/jit_direct_f64_ret.hako

// jit-direct: f64 return demo
// Build: cargo build --release --features cranelift-jit
// Run:   NYASH_JIT_EXEC=1 NYASH_JIT_THRESHOLD=1 NYASH_JIT_NATIVE_F64=1 \
//        ./target/release/nyash --jit-direct examples/jit_direct_f64_ret.hako

static box Main {
  main() {
    local x, y, s
    x = 1.5
    y = 2.25
    s = x + y
    return s       // expect 3.75
  }
}