Function false

tests/js/quint.js:25–28

(x)

    if (x !== true) throw new Error(`'${x}' is not true`);
  },
  false(x)
  {
    if (x !== false) throw new Error(`'${x}' is not false`);
  },
  same(a, b)
  {
    if (a !== b) throw new Error(`'${a}' does not equal to '${b}'`);