[GHC] #14127: -fignore-interface-pragmas and -fspecialise do not go well together

[GHC]

#14127: -fignore-interface-pragmas and -fspecialise do not go well together
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           Reporter:  lspitzner      |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  8.0.2
           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):                 |         Wiki Page:
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 {{{
 ghc: panic! (the 'impossible' happened)
   (GHC version 8.0.2 for x86_64-unknown-linux):
         corePrepPgm
   [True] $s$fSelectorMetaMetaSel_a = "_dconf_dump_annotations"#
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14127>
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