This test verifies that only document.all is undetectable. Other HTMLCollections should be detectable.

Passed: document.all is undetectable.
Passed: document.images is detectable.
Passed: document.applets is detectable.
Passed: document.links is detectable.
Passed: document.forms is detectable.
Passed: document.anchors is detectable.
Passed: document.embeds is detectable.
Passed: document.plugins is detectable.
Passed: document.scripts is detectable.