[GHC] #12725: T7037 is broken on Windows

[GHC]

#12725: T7037 is broken on Windows
-------------------------------------+-------------------------------------
        Reporter:  bgamari           |                Owner:
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  8.1
      Resolution:                    |             Keywords:
Operating System:  Windows           |         Architecture:  x86_64
                                     |  (amd64)
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2684
       Wiki Page:                    |  Phab:D2759
-------------------------------------+-------------------------------------
Changes (by Phyx-):

 * differential:  Phab:D2684 => Phab:D2684 Phab:D2759


--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12725#comment:10>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler