LibJS: Convert Heap::allocate{,_without_realm}() to NonnullGCPtr

Author: https://github.com/linusg
Commit: 22089436ed
Pull-request: https://github.com/SerenityOS/serenity/pull/16498
Reviewed-by: https://github.com/trflynn89 ✅

Userland/Libraries/LibWeb/Geometry/DOMRectList.cpp

@@ -16,7 +16,7 @@ JS::NonnullGCPtr<DOMRectList> DOMRectList::create(JS::Realm& realm, Vector<JS::H
     Vector<JS::NonnullGCPtr<DOMRect>> rects;
     for (auto& rect : rect_handles)
         rects.append(*rect);
-    return *realm.heap().allocate<DOMRectList>(realm, realm, move(rects));
+    return realm.heap().allocate<DOMRectList>(realm, realm, move(rects));
 }
 
 DOMRectList::DOMRectList(JS::Realm& realm, Vector<JS::NonnullGCPtr<DOMRect>> rects)