[GHC] #13170: Core Lint error on git HEAD

[GHC]

#13170: Core Lint error on git HEAD
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        Reporter:  dobenour          |                Owner:  rwbarton
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:
       Component:  Compiler          |              Version:  8.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by rwbarton):

 * owner:   => rwbarton


Comment:

 It seems to be caused by https://phabricator.haskell.org/D2762 not
 reordering the mapped cases. Investigating.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13170#comment:1>
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