[GHC] #10999: ghc: panic! (the 'impossible' happened)

[GHC]

#10999: ghc: panic! (the 'impossible' happened)
-------------------------------------+-------------------------------------
        Reporter:  res               |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Compile-time      |  Unknown/Multiple
  crash                              |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by res):

 * Attachment "foo.hs" added.


--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10999>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler