[GHC] #4017: Unhelpful error message in GHCi

[GHC]

#4017: Unhelpful error message in GHCi
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        Reporter:  simonpj           |                Owner:  (none)
            Type:  bug               |               Status:  patch
        Priority:  lowest            |            Milestone:
       Component:  Compiler          |              Version:  6.12.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect         |  Unknown/Multiple
  warning at compile-time            |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #13862            |  Differential Rev(s):  Phab:D5122
       Wiki Page:                    |
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Changes (by osa1):

 * status:  new => patch
 * differential:   => Phab:D5122


Comment:

 This is a duplicate of #13862 and will be fixed with Phab:D5122.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4017#comment:18>
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