[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
-------------------------------------+-------------------------------------
        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 Ben Gamari <ben@…>):

 In [changeset:"c5b28e06cc71cba56153e59e2958f24cdf183fb9/ghc"
 c5b28e06/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="c5b28e06cc71cba56153e59e2958f24cdf183fb9"
 Add a failing test for T13644

 The problem originates in TcPat.find_field_ty but I don't know how to
 clearnly fix it.

 Reviewers: austin, bgamari

 Reviewed By: bgamari

 Subscribers: rwbarton, thomie

 GHC Trac Issues: #13644

 Differential Revision: https://phabricator.haskell.org/D3535
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13644#comment:9>
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