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/LibJS/Runtime/SetIterator.cpp

@@ -11,7 +11,7 @@ namespace JS {
 
 NonnullGCPtr<SetIterator> SetIterator::create(Realm& realm, Set& set, Object::PropertyKind iteration_kind)
 {
-    return *realm.heap().allocate<SetIterator>(realm, set, iteration_kind, *realm.intrinsics().set_iterator_prototype());
+    return realm.heap().allocate<SetIterator>(realm, set, iteration_kind, *realm.intrinsics().set_iterator_prototype());
 }
 
 SetIterator::SetIterator(Set& set, Object::PropertyKind iteration_kind, Object& prototype)