Closure type 0

[Andy Moran]

> OK, this is a GC bug, and will have to await the return of the Maestro;
> he's on holiday for a fortnight.  Better file it as a Sourceforge bug;
> that way it definitely won't get lost.

Another data point: I've seen this once, under Windows, GHC 6.1 (built from
HEAD around September, I think), and doing a clean build got rid of the
problem (but I'm not sure it would have happened again anyway).

A