LibJS: Convert NativeFunction::create() to NonnullGCPtr

Author: https://github.com/linusg
Commit: b42e293ddd
Pull-request: https://github.com/SerenityOS/serenity/pull/16479
Reviewed-by: https://github.com/davidot ✅

Userland/Libraries/LibJS/Runtime/ProxyConstructor.cpp

@@ -84,7 +84,7 @@ JS_DEFINE_NATIVE_FUNCTION(ProxyConstructor::revocable)
 
     // 3. Let revoker be CreateBuiltinFunction(revokerClosure, 0, "", « [[RevocableProxy]] »).
     // 4. Set revoker.[[RevocableProxy]] to p.
-    auto* revoker = NativeFunction::create(realm, move(revoker_closure), 0, "");
+    auto revoker = NativeFunction::create(realm, move(revoker_closure), 0, "");
 
     // 5. Let result be OrdinaryObjectCreate(%Object.prototype%).
     auto* result = Object::create(realm, realm.intrinsics().object_prototype());