text: // f is declared at the end to test hoisting.
  
  var g = f();
  assert.deepEqual(g.next(), {value: 2, done: false});
  assert.deepEqual(g.next(), {value: undefined, done: true});
  
  function* f() {
    yield 1;
  }
  
  function* f() {
    yield 2;
  }