[GHC] #8506: misleading error message for duplicate type class instances

[GHC]

#8506: misleading error message for duplicate type class instances
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        Reporter:  carter                    |            Owner:
            Type:  bug                       |           Status:  closed
        Priority:  normal                    |        Milestone:
       Component:  Compiler (Type checker)   |          Version:  7.6.3
      Resolution:  fixed                     |         Keywords:
Operating System:  Unknown/Multiple          |     Architecture:
 Type of failure:  None/Unknown              |  Unknown/Multiple
       Test Case:  parser/should_fail/T8506  |       Difficulty:  Unknown
        Blocking:                            |       Blocked By:
                                             |  Related Tickets:
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Changes (by simonpj):

 * status:  new => closed
 * testcase:   => parser/should_fail/T8506
 * resolution:   => fixed


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8506#comment:7>
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