[commit: ghc] master: Make CompactionFailed a newtype (8fdb937)

[git at git.haskell.org]

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

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/8fdb937770d8a4c726585def51ac54bf438e9564/ghc

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

commit 8fdb937770d8a4c726585def51ac54bf438e9564
Author: Ryan Scott <ryan.gl.scott at gmail.com>
Date:   Tue Dec 20 16:32:30 2016 -0500

    Make CompactionFailed a newtype


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

8fdb937770d8a4c726585def51ac54bf438e9564
 libraries/base/GHC/IO/Exception.hs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libraries/base/GHC/IO/Exception.hs b/libraries/base/GHC/IO/Exception.hs
index a8d63d3..3c08852 100644
--- a/libraries/base/GHC/IO/Exception.hs
+++ b/libraries/base/GHC/IO/Exception.hs
@@ -129,12 +129,12 @@ allocationLimitExceeded = toException AllocationLimitExceeded
 
 -----
 
--- |Compaction found an object that cannot be compacted.  Functions
+-- | Compaction found an object that cannot be compacted.  Functions
 -- cannot be compacted, nor can mutable objects or pinned objects.
 -- See 'Data.Compact.compact'.
 --
 -- @since 4.10.0.0
-data CompactionFailed = CompactionFailed String
+newtype CompactionFailed = CompactionFailed String
 
 -- | @since 4.10.0.0
 instance Exception CompactionFailed where