//! Emit a closed-world AOT object for a tiny chunk, to validate the
//! object→link→run pipeline. Usage: `emit_aot <out.o>`. The chunk computes
//! `6 * 7` and leaves 42 on the stack, so the linked binary exits with code 42.
//!
//! Run: `cargo run --example emit_aot --features aot -- /tmp/x.o`