[GHC] #5927: A type-level "implies" constraint on Constraints

[GHC]

#5927: A type-level "implies" constraint on Constraints
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        Reporter:  illissius                |            Owner:
            Type:  feature request          |           Status:  new
        Priority:  normal                   |        Milestone:  7.6.2
       Component:  Compiler (Type checker)  |          Version:  7.4.1
      Resolution:                           |         Keywords:
Operating System:  Unknown/Multiple         |     Architecture:
 Type of failure:  None/Unknown             |  Unknown/Multiple
       Test Case:                           |       Difficulty:  Unknown
        Blocking:                           |       Blocked By:
                                            |  Related Tickets:
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Changes (by akio):

 * cc: tkn.akio@… (added)


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5927#comment:11>
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