[arch-haskell] ghc 7.4.1 moved to extra

[Johan Holmquist]

Great news!

I jumped in to try, but I'm having trouble with haskell-gtk. Every
piece of code using event handlers segfaults.

I have removed every haskell package and installed ghc and haskell-gtk
from [extra], then also built haskell-gtk from abs, but with same
(crashing result).

I don't know if I should report the error upstream, would be great if
someone could verify. (For example demo/hello/World.hs which segfaults
on my machine).

cheers
/Johan