[GHC] #13659: Bug report: "AThing evaluated unexpectedly tcTyVar a_alF"

[GHC]

#13659: Bug report: "AThing evaluated unexpectedly tcTyVar a_alF"
-------------------------------------+-------------------------------------
        Reporter:  costaparas        |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:  x86_64
 Type of failure:  Compile-time      |  (amd64)
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by simonpj):

 I'll add a regression test

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13659#comment:3>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler