[GHC] #5412: dataTypeConstrs gives unhelpful error message

[GHC]

#5412: dataTypeConstrs gives unhelpful error message
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        Reporter:  NeilMitchell      |            Owner:  nomeata
            Type:  bug               |           Status:  patch
        Priority:  normal            |        Milestone:  7.6.2
       Component:  libraries/base    |          Version:  7.1
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Changes (by nomeata):

 * owner:  klangner => nomeata


Comment:

 I just checked the API as well, and there does not seem to exist a clean
 way of getting the unqualified name. But as this is just an error message,
 I think it’s fine.

 I’ll validate and push.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5412#comment:10>
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