| PASS Has %IteratorPrototype% as prototype | |
| PASS next() exists and is writable, enumerable, and configurable | |
| PASS next() throws TypeError when called on ineligible receiver | |
| PASS Object.prototype.toString returns correct value | |
| FAIL @@toStringTag has correct value undefined is not an object (evaluating 'Object.getOwnPropertyDescriptor(iteratorProto, Symbol.toStringTag).value') | |
| PASS Is specific to an interface | |