[commit: ghc] master: Revert "Remove unused language pragma" (36b270a)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/36b270a94e689220c77ab49a863435dda6b60621/ghc

>---------------------------------------------------------------

commit 36b270a94e689220c77ab49a863435dda6b60621
Author: Matthew Pickering <matthewtpickering at gmail.com>
Date:   Tue Jul 25 17:08:15 2017 +0100

    Revert "Remove unused language pragma"
    
    This reverts commit 7d1909ad110f05c8cb2fb0689ee75857ceb945f6.
    
    It is actually used for Callstacks, woops!


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36b270a94e689220c77ab49a863435dda6b60621
 compiler/utils/Outputable.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/utils/Outputable.hs b/compiler/utils/Outputable.hs
index be5930e..4107e5b 100644
--- a/compiler/utils/Outputable.hs
+++ b/compiler/utils/Outputable.hs
@@ -1,4 +1,4 @@
-{-# LANGUAGE CPP #-}
+{-# LANGUAGE CPP, ImplicitParams #-}
 {-
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 (c) The GRASP Project, Glasgow University, 1992-1998