[GHC] #15289: isUnliftedType GHC panic on pattern with True :: Maybe

[GHC]

#15289: isUnliftedType GHC panic on pattern with True :: Maybe
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        Reporter:  Remi              |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  low               |            Milestone:  8.6.1
       Component:  Compiler (Type    |              Version:  8.4.3
  checker)                           |             Keywords:
      Resolution:                    |  PatternSynonyms
Operating System:  Unknown/Multiple  |         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:"7b8dcd90c5a622146dfdd3b162a1f1b1d262d5cf/ghc"
 7b8dcd90/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="7b8dcd90c5a622146dfdd3b162a1f1b1d262d5cf"
 testsuite: Add broken test for #15289

 The stderr output is merely a guess at what we should expect, but
 currently this
 is certainly broken.
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15289#comment:4>
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