Disallow customElements.define being given named constructors

#1411 disallowed passing in interface objects, but forgot named
constructors like Image, Audio, and Option. Noted during the review of
web-platform-tests/wpt#3308.

source

@@ -66088,9 +66088,10 @@ dictionary <dfn>ElementDefinitionOptions</dfn> {
    <code>TypeError</code> and abort these steps.</p></li>
 
    <li>
-    <p>If <var>constructor</var> is an <span>interface object</span> whose corresponding
-    interface either is <code>HTMLElement</code> or has <code>HTMLElement</code> in its set of
-    <span>inherited interfaces</span>, throw a <code>TypeError</code> and abort these steps.</p>
+    <p>If <var>constructor</var> is either an <span>interface object</span> or <span>named
+    constructor</span>, whose corresponding interface either is <code>HTMLElement</code> or has
+    <code>HTMLElement</code> in its set of <span>inherited interfaces</span>, throw a
+    <code>TypeError</code> and abort these steps.</p>
 
     <div class="note">
      <p>This prevents passing, for example, <code class="no-backref">HTMLButtonElement</code> as