Port 679d9503

Original commit message:
    According to https://www.w3.org/TR/html5/obsolete.html#dom-document-all,
    comparisons of document.all to other values such as strings or objects,
    are unaffected. In fact document.all only gets special treatment in
    comparisons with null or undefined according to HTML. Especially setting
    the undetectable doesn't make two distinct JSReceivers equal.

R=bmeurer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1785503002

Cr-Commit-Position: refs/heads/master@{#34645}