Queue cleanup

[Lawrence D'Oliveiro]

In message <7xr5hguzzi.fsf at ruckus.brouhaha.com>, Paul Rubin wrote:

> JHC (experimental Haskell compiler) recently started using a mixture of
> gc and region inference.  It will be interesting to see how that works
> out.

That’s what people have been saying about garbage collection for about half 
a century: “this new experimental technique will solve all the problems, 
just you wait and see”.

Meanwhile, real-world programmers get on to writing real-world code that is 
productive and efficient on real-world systems.