script: Include constructors and static methods in generated DOM traits (#33665)

* Add all constructors, special operations, and static methods to generated DOM interface traits.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Move all constructors and static methods defined in bare impl blocks inside FooMethods trait impls.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Add missing doc links.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

---------

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

components/script/dom/customevent.rs

@@ -67,25 +67,6 @@ impl CustomEvent {
         ev
     }
 
-    #[allow(unsafe_code, non_snake_case)]
-    pub fn Constructor(
-        global: &GlobalScope,
-        proto: Option<HandleObject>,
-        can_gc: CanGc,
-        type_: DOMString,
-        init: RootedTraceableBox<CustomEventBinding::CustomEventInit>,
-    ) -> DomRoot<CustomEvent> {
-        CustomEvent::new(
-            global,
-            proto,
-            Atom::from(type_),
-            init.parent.bubbles,
-            init.parent.cancelable,
-            init.detail.handle(),
-            can_gc,
-        )
-    }
-
     fn init_custom_event(
         &self,
         type_: Atom,
@@ -104,6 +85,25 @@ impl CustomEvent {
 }
 
 impl CustomEventMethods for CustomEvent {
+    // https://dom.spec.whatwg.org/#dom-customevent-customevent
+    fn Constructor(
+        global: &GlobalScope,
+        proto: Option<HandleObject>,
+        can_gc: CanGc,
+        type_: DOMString,
+        init: RootedTraceableBox<CustomEventBinding::CustomEventInit>,
+    ) -> DomRoot<CustomEvent> {
+        CustomEvent::new(
+            global,
+            proto,
+            Atom::from(type_),
+            init.parent.bubbles,
+            init.parent.cancelable,
+            init.detail.handle(),
+            can_gc,
+        )
+    }
+
     // https://dom.spec.whatwg.org/#dom-customevent-detail
     fn Detail(&self, _cx: JSContext) -> JSVal {
         self.detail.get()