Add support for type/data family declarations.

[yuriy0]

While type families are not part of the either the Haskell 98 or 2010 standards, they have become nearly ubiquitous. It would be nice for the syntax highlighter to support type/data family declarations. It, perhaps coincidentally, supports type/family instance declarations, but the word `family' is not highlighted in either

type family X 
data family Y

This patch highlights the above correctly.

[gracjan]

Thanks.

Have you checked if haskell-indentation works? It usually requires a couple of changes after learning a new keyword it needs to know how to handle it.

[gracjan]

Please remove the change in haskell-indentation. It does not help but may break things.

Does not help here:

data family X
= X

breaks things here:

func x = do
  family <- x

[gracjan]

@yuriy0: Can you update this one? It would be really good to merge (but haskell-indentation part must be removed).

[gracjan]

@yuriy0: Can you update this one as described?

[gracjan]

@yuriy0: ping!

[gracjan]

@yuriy0, ping.

Is there anybody that would like to take over these changes?

[bergey]

I can adopt this one, but I can't get to it real soon. Ping me if I haven't finished in 3 weeks? Of course, if someone else gets to it sooner, that's great.

[gracjan]

@bergey: Can you take care of this one? Would be great!

[bergey]

Thanks for the reminder. Will do.