[GHC] #9071: Panic with -XDeriveFunctor when deriving from a non-Functor in a separate module

[GHC]

#9071: Panic with -XDeriveFunctor when deriving from a non-Functor in a separate
module
---------------------------------------+-----------------------------------
        Reporter:  bens                |            Owner:  simonpj
            Type:  bug                 |           Status:  new
        Priority:  normal              |        Milestone:
       Component:  Compiler            |          Version:  7.8.2
      Resolution:                      |         Keywords:
Operating System:  Unknown/Multiple    |     Architecture:
 Type of failure:  Compile-time crash  |  Unknown/Multiple
       Test Case:                      |       Difficulty:  Unknown
        Blocking:                      |       Blocked By:
                                       |  Related Tickets:
---------------------------------------+-----------------------------------

Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"59b4e6d0ba504b33cc7064d489b8ec485a7703f4/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="59b4e6d0ba504b33cc7064d489b8ec485a7703f4"
 Adding missing test files for #9071
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9071#comment:5>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler