[GHC] #15436: Compile-time panic, Prelude.!!: negative index

[GHC]

#15436: Compile-time panic, Prelude.!!: negative index
-------------------------------------+-------------------------------------
        Reporter:  pbrisbin          |                Owner:  (none)
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.5
      Resolution:                    |             Keywords:
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):  Phab:D5008
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by hsyl20):

 * status:  new => patch
 * differential:   => Phab:D5008


-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15436#comment:6>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler