Function addMusic

spec/aether/global_scope_spec.js:162–162

(song)

    const safe = ["secret"];
    const music = [];
    const inner = {addMusic(song) { return music.push(song); }};
    const outer = {entertain() { return inner.sing(); }};
    outer.entertain.burninate = () => safe.pop();
    const code = `\