[GHC] #12417: API annotations for unboxed sums needs reworking

[GHC]

#12417: API annotations for unboxed sums needs reworking
-------------------------------------+-------------------------------------
        Reporter:  osa1              |                Owner:  alanz
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Compiler          |              Version:  8.1
  (Parser)                           |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect API     |  Unknown/Multiple
  annotation                         |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2968
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by alanz):

 * status:  new => patch
 * differential:   => Phab:D2968


--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12417#comment:3>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler