Standardize REPL commands & improve SPC o r

- SPC o r now prompts for a REPL to open when none was found for the
  current buffer.
- REPL handlers must now follow the naming convention "*/open*-repl".
  e.g. +python/open-ipython-repl, +emacs-lisp/open-repl, etc.
- +eval/open-repl has been split in two:
  - +eval/open-repl-other-window
  - +eval/open-repl-same-window

modules/lang/haskell/autoload.el

@@ -1,14 +1,10 @@
 ;;; lang/haskell/autoload.el -*- lexical-binding: t; -*-
 
 ;;;###autoload
-(defun +haskell-repl-buffer (&optional arg)
-  "Returns the appropriate Haskell REPL buffer."
-  (if (featurep! +intero)
-      (intero-repl-buffer arg)
-    (haskell-session-interactive-buffer (haskell-session))))
-
-;;;###autoload
-(defun +haskell/repl (&optional arg)
+(defun +haskell/open-repl (&optional arg)
   "Opens a Haskell REPL."
   (interactive "P")
-  (display-buffer (+haskell-repl-buffer arg)))
+  (display-buffer
+   (if (featurep! +intero)
+       (intero-repl-buffer arg)
+     (haskell-session-interactive-buffer (haskell-session)))))