> 
> I first attempted to replace #growToAtLeast: with #grownBy: because
> Squeak become: is notoriously inefficient.
> But obviously, this did not work, the tests rely on destination
> preserving its identity.
> This clearly is going to degrade micro benchmarks when the destination
> collection capacity is not well adjusted in advance.
> I think we should discuss this particular point. Is identity
> preservation absolutely required, or just convenient ?

Which tests? I'd be in favor of removing that assumption.

Michael