[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:  new
        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):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by alanz):

 * owner:   => alanz
 * failure:  None/Unknown => Incorrect API annotation
 * version:  8.0.1 => 8.1
 * component:  Compiler => Compiler (Parser)
 * milestone:   => 8.2.1


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12417#comment:1>
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