Replaced throw to throwIO where type is IO

[Ian Lynagh]

Hi Bas,

On Fri, Sep 24, 2010 at 11:46:40PM +0200, Bas van Dijk wrote:
> 
> Attached is a small patch to: Control/Exception/Base.hs which replaces
> all uses of 'throw' to 'throwIO' where the type is IO.
> 
> It would be nice if someone can review and apply it.

Thanks for your work on this. Please see
    http://www.haskell.org/haskellwiki/Library_submissions
for the process to propose changes to the core libraries.


Thanks
Ian