patch applied (ghc): Merge Haddock comment support from ghc.haddock -- big patch

[Simon Marlow]

Simon Peyton-Jones wrote:
> David
> 
> Great stuff
> 
> Do you think you could start a Wiki page describing the Haddock-isation
> in the (new) Commentary?
> 	http://hackage.haskell.org/trac/ghc/wiki/Commentary
> That would be a good place to accumulate the answers to Duncan's
> questions, for example.   Don't go overboard -- too much detail just
> gets out of sync -- but an overview in the style of the rest of the
> commentary would be v helpful.
> 
> A question I have is this: have you also rejigged Haddock itself so that
> it uses the GHC Api?  In the end that was the whole point of the
> exercise, so that Haddock would always be able to understand anything
> that GHC could understand.

The darcs repo containing David's new version of Haddock, which works via the 
GHC API, is here:

   http://darcs.haskell.org/SoC/haddock.ghc/

As I understand it, it's still not completely stable, but it'll be easier to 
work on now that the GHC changes are in the HEAD.  I'm sure David would welcome 
any offers of help or (probably later) willing testers.

Cheers,
	Simon