script: use Element::create instead of DOM struct constructors (#39325)

Creating elements by directly calling their interface constructors leads
to some state not being intialized correctly (see #39285). It is also
not in line with the specifications as many of them refer to the
[`create an element`][1] algorithm when an element needs to be created,
which directly maps to `Element::create` in the script crate.

So, switch all such places where elements are created by script to use
`Element::create`.

[1]: https://dom.spec.whatwg.org/#concept-create-element

Testing: Existing WPT tests.

Fixes: #39285

Signed-off-by: Mukilan Thiyagarajan <mukilan@igalia.com>

components/script/dom/html/htmloptionscollection.rs

@@ -5,7 +5,7 @@
 use std::cmp::Ordering;
 
 use dom_struct::dom_struct;
-use html5ever::local_name;
+use html5ever::{QualName, local_name, ns};
 
 use crate::dom::bindings::codegen::Bindings::ElementBinding::ElementMethods;
 use crate::dom::bindings::codegen::Bindings::HTMLCollectionBinding::HTMLCollectionMethods;
@@ -20,7 +20,7 @@ use crate::dom::bindings::inheritance::Castable;
 use crate::dom::bindings::reflector::reflect_dom_object;
 use crate::dom::bindings::root::DomRoot;
 use crate::dom::bindings::str::DOMString;
-use crate::dom::element::Element;
+use crate::dom::element::{CustomElementCreationMode, Element, ElementCreator};
 use crate::dom::html::htmlcollection::{CollectionFilter, HTMLCollection};
 use crate::dom::html::htmloptionelement::HTMLOptionElement;
 use crate::dom::html::htmlselectelement::HTMLSelectElement;
@@ -61,8 +61,15 @@ impl HTMLOptionsCollection {
         let document = root.owner_document();
 
         for _ in 0..count {
-            let element =
-                HTMLOptionElement::new(local_name!("option"), None, &document, None, can_gc);
+            let element = Element::create(
+                QualName::new(None, ns!(html), local_name!("option")),
+                None,
+                &document,
+                ElementCreator::ScriptCreated,
+                CustomElementCreationMode::Asynchronous,
+                None,
+                can_gc,
+            );
             let node = element.upcast::<Node>();
             root.AppendChild(node, can_gc)?;
         }