Merge pull request #1625 from sjsch/master

Fix loading for GHC 8.4, suggested by gregorycollins

Author: gregorycollins

haskell-load.el

@@ -111,7 +111,7 @@ actual Emacs buffer of the module being loaded."
                t)
                ((haskell-process-consume
                 process
-                "Ok, \\(?:[a-z]+\\) module loaded\\.$") ;; for ghc 8.4
+                "Ok, \\(?:[a-z]+\\) modules? loaded\\.$") ;; for ghc 8.4
                t)
               ((haskell-process-consume
                 process
@@ -125,6 +125,10 @@ actual Emacs buffer of the module being loaded."
                 process
                 "Failed, modules loaded: \\(.+\\)\\.$")
                nil)
+	      ((haskell-process-consume
+                process
+                "Failed, no modules loaded\\.$") ;; for ghc 8.4
+               nil)
               (t
                (error (message "Unexpected response from haskell process.")))))
          (modules (haskell-process-extract-modules buffer))