[GHC] #14534: Split T12971 into its own Makefile

[GHC]

#14534: Split T12971 into its own Makefile
-------------------------------------+-------------------------------------
        Reporter:  dfeuer            |                Owner:  (none)
            Type:  task              |               Status:  patch
        Priority:  low               |            Milestone:  8.6.1
       Component:  Test Suite        |              Version:  8.2.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Other             |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D4252
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by dfeuer):

 * status:  new => patch
 * differential:   => Phab:D4252


-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14534#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler