haskell: improve REPL/debugger integration (WIP)

core/core-popup.el

@@ -13,6 +13,7 @@
         '(;; Debuggers
           ("\\`\\*\\(g\\|zsh\\|bash\\)db.*?\\*\\'" :regexp t :align below :size 20)
           ("\\`\\*trepanjs.*?\\*\\'" :regexp t :align below :size 20)
+          ("\\`\\*\\(debug:\\)haskell\\*\\'" :regexp t :align below :size 20)
 
           ;; Plugins
           ("*helm bookmarks*"                :align below  :size 7 :select t)

core/defuns/defuns-debug.el

@@ -56,6 +56,8 @@
           ;; TODO Add python debugging
           ((memq major-mode '(js-mode js2-mode js3-mode))
            (realgud:trepanjs))
+          ((eq major-mode 'haskell-mode)
+           (haskell-debug))
           (t (user-error "No debugger for %s" major-mode)))))
 
 ;;;###autoload (autoload 'narf:debug-toggle-breakpoint "defuns-debug" nil t)