[GHC] #16221: Core Lint error with a data type

[GHC]

#16221: Core Lint error with a data type
-------------------------------------+-------------------------------------
        Reporter:  monoidal          |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:  8.10.1
       Component:  Compiler (Type    |              Version:  8.7
  checker)                           |
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Compile-time      |            Test Case:
  crash or panic                     |  polykinds/T16221,T16221a
      Blocked By:                    |             Blocking:
 Related Tickets:  #16342            |  Differential Rev(s):
                                     |  https://gitlab.haskell.org/ghc/ghc/merge_requests/444,
       Wiki Page:                    |  https://gitlab.haskell.org/ghc/ghc/merge_requests/499
-------------------------------------+-------------------------------------
Changes (by simonpj):

 * status:  patch => closed
 * testcase:   => polykinds/T16221,T16221a
 * resolution:   => fixed


Comment:

 Test landed as
 {{{
 commit 07f378cee37338c5f2655b3a7e46dfef3f1c5cc1
 Author: Simon Peyton Jones <simonpj at microsoft.com>
 Date:   Wed Mar 6 09:54:06 2019 +0000

     Add tests for Trac #16221 and #16342

  testsuite/tests/polykinds/T16221.hs      | 13 +++++++++++++
  testsuite/tests/polykinds/T16221a.hs     |  7 +++++++
  testsuite/tests/polykinds/T16221a.stderr |  6 ++++++
  testsuite/tests/polykinds/T16342.hs      | 13 +++++++++++++
  testsuite/tests/polykinds/all.T          |  3 +++
  5 files changed, 42 insertions(+)
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/16221#comment:7>
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