layout rules for "where"

[Simon Marlow]

> Can't we require that a local definition be more indented than the
> enclosing definition?  That way my code would've been rejected by the
> compiler, and the error message (something like "Empty where-clause on
> line xxx") can actually be helpful.

The Haskell definition *does* require that nested definitions be more =
indented than the enclosing scope, and empty where declarations are =
legal.  Hugs doesn't follow the report here.

Thanks for providing some evidence to support my view that this =
restriction on the layout rule is The Right Thing :-)

Cheers,
	Simon