[GHC] #10726: Upgrade MingW-w64 distributions for windows

[GHC]

#10726: Upgrade MingW-w64 distributions for windows
-------------------------------------+-------------------------------------
        Reporter:  Phyx-             |                   Owner:  Phyx-
            Type:  task              |                  Status:  merge
        Priority:  normal            |               Milestone:  7.10.3
       Component:  Build System      |                 Version:  7.11
      Resolution:  fixed             |                Keywords:
Operating System:  Windows           |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:  #9218 #9014       |  Differential Revisions:  Phab:D1123
  #10435                             |
-------------------------------------+-------------------------------------

Comment (by hanjoosten):

 I would also VERY much see this fix released early. My project is bumping
 on this issue too. (see this ticket:
 https://github.com/fpco/minghc/issues/91)

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10726#comment:19>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler