[GHC] #9584: Interface file errors (Iface type variable out of scope: k)

[GHC]

#9584: Interface file errors (Iface type variable out of scope: k)
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        Reporter:  jonsterling       |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.8.3
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:  #9263             |                Blocking:
                                     |  Differential Revisions:
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Comment (by andreas.abel):

 I am getting a similar error (with ghc 7.8.3) when compiling Agda for the
 second time (without removing dist).  Probably cause is SPECIALIZE
 pragmas.

 https://github.com/agda/agda/commit/22eb932c0df278e40e40c6e990d2e9dcb6f99449

 Probably reproducible by
 * cloning Agda at this commit
 * introduce an error in a later module, e.g.
 src/full/Agda/TypeChecking/InstanceArguments.hs
 * make install-bin
 * fix the error
 * make install-bin
 Error:
 {{{
 The interface for ‘Agda-2.4.3:Agda.TypeChecking.Free.Lazy’
 Rule SPEC $cfreeVars':
   Iface type variable out of scope:  a
 Cannot continue after interface file error
 cabal: Error: some packages failed to install:
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9584#comment:7>
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