[GHC] #14877: QuantifiedConstraints: Can't deduce `xx' from `(xx => a, xx)'

[GHC]

#14877: QuantifiedConstraints: Can't deduce `xx' from `(xx => a, xx)'
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        Reporter:  Iceland_jack      |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.5
      Resolution:                    |             Keywords:
                                     |  QuantifiedConstraints, wipT2893
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 Iceland_jack):

 * version:  8.2.2 => 8.5


-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14877#comment:1>
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