Move the tests from .html to .sky

sky/tests/custom-elements/resources/document-register-fuzz.html

-<script>
-function setupObjectHooks(hooks)
-{
-    // Wrapper for these object should be materialized before setting hooks.
-    console.log;
-    document.register;
-
-    Object.defineProperty(Object.prototype, "prototype", {
-        get: function() { return hooks.prototypeGet(); },
-        set: function(value) { return hooks.prototypeSet(value); }
-    });
-
-    Object.defineProperty(Object.prototype, "constructor", {
-        get: function() { return hooks.constructorGet(); },
-        set: function(value) { return hooks.constructorSet(value); }
-    });
-
-    return hooks;
-}
-
-function exerciseDocumentRegister()
-{
-    register('x-a', {});
-    register('x-b', {prototype: Object.create(HTMLElement.prototype)});
-}
-
-function register(name, options)
-{
-    var myConstructor = null;
-    try {
-        myConstructor = document.registerElement(name, options);
-    } catch (e) { }
-
-    try {
-        if (!myConstructor) {
-            console.log("Constructor object isn't created.");
-            return;
-        }
-
-        if (myConstructor.prototype != options.prototype) {
-            console.log("FAIL: bad prototype");
-            return;
-         }
-
-        var element = new myConstructor();
-        if (!element)
-            return;
-        if (element.constructor != myConstructor) {
-            console.log("FAIL: bad constructor");
-            return;
-         }
-    } catch (e) { console.log(e); }
-}
-
-this.exports = {
-    setupObjectHooks: setupObjectHooks,
-    exerciseDocumentRegister: exerciseDocumentRegister,
-    register: register,
-}
-</script>