[GHC] #10630: Template variable unbound in rewrite rule (GHC 7.10.1)

[GHC]

#10630: Template variable unbound in rewrite rule (GHC 7.10.1)
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        Reporter:  Otini             |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  high              |               Milestone:  ⊥
       Component:  Compiler          |                 Version:  7.10.1
      Resolution:                    |                Keywords:  panic,
Operating System:  Linux             |  template, bitmap
 Type of failure:  GHC rejects       |            Architecture:  x86_64
  valid program                      |  (amd64)
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Comment (by slyfox):

 Should be fixed in 7.10.2 as part of #10251

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10630#comment:2>
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