LambdaType should not override finalize()

[A248]

Despite the intention of overriding this method to make it final, this causes LambdaType objects to be placed in the finalization queue.

https://www.oracle.com/technical-resources/articles/javase/finalization.html

Instead of trying to prevent people from overriding finalize(), let them implement it and cause their own memory leaks. It should be no matter for everyone else.

[Cybermaxke]

The problem right now is that the method is non-trivial, making the body empty will make it considered trivial so it will be ignored by the finalizer.

Should be fixed with b650edb