Proper cabal-dev support

[srhb]

I would love to see cabal-dev support for C-c C-l. As far as I can see, implementing this feature is very easy (for someone who knows elisp.)

If I'm not mistaken, the solution goes like this:

1. Find project root
2. Check if there's a cabal-dev directory
3. Check if haskell-program-name-cabal-dev is set and if so:
4. Launch cabal-dev from the project root.

Would this be possible?

[ivan-m]

I thought there was cabal-dev support in the new project-based workflow; just configure haskell-process-type.

[chrisdone]

If someone who uses inferior-haskell-mode wants to take ownership of this issue, please do so. See #145. Otherwise I will close next month.

[hvr]

note: inf-haskell will probably get cabal repl support instead