[GHC] #11459: Rather terrible error message due to excessive kind polymorphism

[GHC]

#11459: Rather terrible error message due to excessive kind polymorphism
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        Reporter:  bgamari           |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.0.1
       Component:  Compiler          |              Version:  7.10.3
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect         |  Unknown/Multiple
  warning at compile-time            |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"c572430cdade1d8c66fa9c4f1f251dfce09243f0/ghc"
 c572430c/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="c572430cdade1d8c66fa9c4f1f251dfce09243f0"
 Re-add missing kind generalisation

 When splitting H98/GADT syntax in ConDecl we lost a key
 kind-generalisation step.

 I also renamed tcHsTyVarBndrs to tcExplicitTKBnders, by analogy
 with tcImplicitTkBndrs.

 This fixes Trac #11459.

 Merge to 8.0.
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11459#comment:3>
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