The Tor Browser / file revision

 // Interactions between yield and array comprehensions.

 function assertIteratorResult(result, value, done) {

     assertDeepEq(result.value, value);

     assertEq(result.done, done);

 }

 function* t1() { return [for (x of yield 0) x*2] }

 var o = t1();

 assertIteratorResult(o.next(), 0, false);

 assertIteratorResult(o.next([0, 1, 2]), [0, 2, 4], true);

 function* t2() { return [for (x of [1,2,3]) yield x] }

 o = t2();

 assertIteratorResult(o.next(), 1, false);

 assertIteratorResult(o.next(5), 2, false);

 assertIteratorResult(o.next(6), 3, false);

 assertIteratorResult(o.next(7), [5, 6, 7], true);

 reportCompare(null, null, "test");