Beef up haskell config

dotfiles/emacs.d/README.org

@@ -2287,9 +2287,29 @@ The following is taken from [[https://github.com/syl20bnr/spacemacs/blob/a650877
   :commands haskell-mode
   :config
   (progn
-    (add-hook 'haskell-mode-hook 'turn-on-haskell-indent)))
-***** Scion
-(use-package scion)
+    (add-hook 'haskell-mode-hook 'turn-on-haskell-indent)
+    (setq haskell-tags-on-save t)))
+#+END_SRC
+***** hindent
+#+BEGIN_SRC emacs-lisp
+(use-package hindent
+  :after haskell-mode
+  :config
+  (add-hook 'haskell-mode-hook 'hindent-mode))
+#+END_SRC
+***** ghc-mod
+#+BEGIN_SRC emacs-lisp
+(use-package ghc
+  :after haskell-mode
+  :config
+  (add-hook 'haskell-mode-hook 'ghci-nit))
+#+END_SRC
+***** company-ghc
+#+BEGIN_SRC emacs-lisp
+(use-package company-ghc
+  :after ghc
+  :config
+  (add-to-list 'company-backend 'company-ghc))
 #+END_SRC
 *** Data/Config/Protocol
 **** thrift