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Test Info:

<!DOCTYPE html>
<script>
var collection = document.images;
var other = document.embeds;
var options = document.createElement("select").options;
collection.toString;
options.selectedIndex;
Object.defineProperty(Object.getPrototypeOf(collection),
"item",
{ value: {}, enumerable: true, configurable: true });
other.toString;
collection.toString;
options.selectedIndex;
options.toString;
</script>