[GHC] #12381: Type family not reduced

[GHC]

#12381: Type family not reduced
-------------------------------------+-------------------------------------
        Reporter:  bgamari           |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Compiler (Type    |              Version:  8.0.1
  checker)                           |
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by bgamari):

 * status:  merge => closed
 * resolution:   => fixed
 * milestone:  8.0.2 => 8.2.1


Comment:

 Sadly the fix in #11348 (353d8ae6fafe117a1cac4adf6f029a5baccc2780) is a
 very large patch which looks to not apply easily. It looks like this will
 have to wait until 8.2. Sorry everyone!

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12381#comment:6>
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