[GHC] #7898: SpecConstr explodes when compiling module BSP of frag-1.1.2

[GHC]

#7898: SpecConstr explodes when compiling module BSP of frag-1.1.2
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              Reporter:  tinctorius  |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.6.3
            Resolution:              |         Keywords:
      Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple                   |       Difficulty:  Unknown
       Type of failure:  Compile-    |       Blocked By:
  time crash                         |  Related Tickets:
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by simonpj):

 I believe this is finally fixed; see #8852. Can you try now, with HEAD?

 Simon

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7898#comment:15>
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