[GHC] #12159: Record-like GADTs with repeated fields (of same type) rejected

[GHC]

#12159: Record-like GADTs with repeated fields (of same type) rejected
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        Reporter:  heisenbug         |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by nomeata):

 Just ran into this (in the “simple” case where a field would appear in all
 constructors with the same field type.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12159#comment:8>
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