added imports for haskell-string-message-line for other modules

Author: vasanthaganeshk

haskell-interactive-mode.el

@@ -35,7 +35,7 @@
 (require 'haskell-font-lock)
 (require 'haskell-presentation-mode)
 (require 'haskell-utils)
-
+(require 'haskell-string)
 (require 'ansi-color)
 (require 'cl-lib)
 (require 'etags)

haskell-load.el

@@ -27,6 +27,7 @@
 (require 'haskell-modules)
 (require 'haskell-commands)
 (require 'haskell-session)
+(require 'haskell-string)
 
 (defun haskell-process-look-config-changes (session)
   "Check whether a cabal configuration file has changed.