[GHC] #12026: Pattern match failure in RnNames.hs

[GHC]

#12026: Pattern match failure in RnNames.hs
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        Reporter:  davean            |                Owner:
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash                              |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by davean):

 For simplicity I've provided the patched numtype-dk repo at
 http://code.xkrd.net/davean/numtype-dk.git

 Additionally, this compiles clean on 7.10.3 (including with the patched
 numtype-dk).

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12026#comment:1>
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