[GHC] #11112: Error message for accidentally using -> instead of =>

[GHC]

#11112: Error message for accidentally using -> instead of =>
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        Reporter:  JulesBean         |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
                                     |  typecheck/should_fail/tcfail057
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"5955510e5f57464b1f4f42b510e3558d6e691380/ghc"
 5955510e/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="5955510e5f57464b1f4f42b510e3558d6e691380"
 Improve constraint-used-as-type error msg

 This responds to Trac #11112 by improving the error message
 when the kind checker discovers something of kind Constraint
 used when a type is expected
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11112#comment:2>
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