Proposal for finalizer optimization.

[Clemens Eisserer]

> I am thinking about optimizing the implementation of finalizing.

To be honest I am not so sure wether this optimization makes a lot of
sence, except for legacy code: Code that does not resurrect the object
in the finalizer could also use WeakReferences+Queue - and otherwise
when this (not recommended technique is used) there is no way to
optimize anyway.

lg Clemens