[GHC] #8994: type checker could not deduce ambiguous instances

[GHC]

#8994: type checker could not deduce ambiguous instances
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        Reporter:  divip             |            Owner:
            Type:  bug               |           Status:  closed
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          Version:  7.8.2
      Resolution:  invalid           |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by divip):

 Thanks, wrote a reply below before I noticed there is a `reply` button.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8994#comment:4>
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