[GHC] #9432: IncoherentInstances are too restricted

[GHC]

#9432: IncoherentInstances are too restricted
-------------------------------------+-------------------------------------
              Reporter:  danilo2     |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  high        |        Milestone:
             Component:  Compiler    |          Version:  7.8.2
  (Type checker)                     |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:              |  Related Tickets:  #8141
  None/Unknown                       |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
-------------------------------------+-------------------------------------
Changes (by thomie):

 * related:   => #8141


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9432#comment:4>
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