[GHC] #13802: Installation of yesod-auth-1.4.13.2 fails with "ghc: panic! (the 'impossible' happened)"

[GHC]

#13802: Installation of yesod-auth-1.4.13.2 fails with "ghc: panic! (the
'impossible' happened)"
-------------------------------------+-------------------------------------
        Reporter:  nvbt              |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.2
      Resolution:  duplicate         |             Keywords:  panic, stack,
                                     |  install
Operating System:  MacOS X           |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash or panic                     |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #12479            |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by bgamari):

 * status:  new => closed
 * resolution:   => duplicate
 * related:   => #12479


Comment:

 This is a duplicate of #12479 and is fixed in GHC 8.0.2.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13802#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler