LibJS+LibWeb: Normalize calls to Base::visit_edges in GC objects

Author: https://github.com/mattco98
Commit: 82eeee2008
Pull-request: https://github.com/SerenityOS/serenity/pull/17979
Reviewed-by: https://github.com/awesomekling

Userland/Libraries/LibWeb/HTML/EventHandler.cpp

@@ -21,7 +21,7 @@ EventHandler::EventHandler(WebIDL::CallbackType& c)
 
 void EventHandler::visit_edges(Cell::Visitor& visitor)
 {
-    Cell::visit_edges(visitor);
+    Base::visit_edges(visitor);
     visitor.visit(listener);
 
     if (auto* callback = value.get_pointer<JS::GCPtr<WebIDL::CallbackType>>())