[GHC] #11287: Visible type application: ASSERT failed! file compiler/typecheck/TcMatches.hs

[GHC]

#11287: Visible type application: ASSERT failed! file
compiler/typecheck/TcMatches.hs
-------------------------------------+-------------------------------------
           Reporter:  thomie         |             Owner:
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:  8.0.1
          Component:  Compiler       |           Version:  7.11
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:  th/T7681       |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 Validate on Travis (in the configuration that defines `GhcStage2HcOpts +=
 -DDEBUG`) [https://s3.amazonaws.com/archive.travis-
 ci.org/jobs/98713762/log.txt reports] , since
 2db18b8135335da2da9918b722699df684097be9:

 {{{
 Compile failed (status 256) errors were:
 ghc-stage2: panic! (the 'impossible' happened)
   (GHC version 7.11.20151224 for x86_64-unknown-linux):
         ASSERT failed! file compiler/typecheck/TcMatches.hs, line 223

 Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug


 *** unexpected failure for T7681(normal)
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11287>
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