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 // The iteratee of yield* can be a proxy.

 function results(results) {

     var i = 0;

     function iterator() {

         return this;

     }

     function next() {

         return results[i++];

     }

     var ret = { next: next }

     ret[std_iterator] = iterator;

     return ret;

 }

 function* yield_results(expected) {

     return yield* Proxy(results(expected), {});

 }

 function collect_results(iter) {

     var ret = [];

     var result;

     do {

         result = iter.next();

         ret.push(result);

     } while (!result.done);

     return ret;

 }

 // We have to put a full result for the end, because the return will re-box.

 var expected = [{value: 1}, 13, "foo", {value: 34, done: true}];

 // Sanity check.

 assertDeepEq(expected, collect_results(results(expected)));

 assertDeepEq(expected, collect_results(yield_results(expected)));

 if (typeof reportCompare == "function")

     reportCompare(true, true);