arithmetic sequences and the prelude: minor problems?

[Simon Marlow]

Laszlo Nemeth wrote:

> Incidentally, [1..5] is accepted (no space between 1 and the dots), 
> while [False..True] is not (no spaces after False), which appears to be 
> a parsing inconsistency.

It's a bug, but a known one (we have a test in the test suite for it). 
Hugs has the same bug, so at least there's some consistency across 
implementations.

Cheers,
	Simon