[GHC] #13644: overloaded name used in record pattern matching leads to panic! (the 'impossible' happened) in ghc

[GHC]

#13644: overloaded name used in record pattern matching leads to panic!  (the
'impossible' happened) in ghc
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        Reporter:  pjljvdlaar        |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.2
      Resolution:                    |             Keywords:
Operating System:  Windows           |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by simonpj):

 I bet this is a dup of #12158, which needs attention from someone.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13644#comment:1>
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