[GHC] #9857: GHC 7.9 panics (simplifier ticks exhausted) on `half-0.2`

[GHC]

#9857: GHC 7.9 panics (simplifier ticks exhausted) on `half-0.2`
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              Reporter:  hvr         |            Owner:  simonpj
                  Type:  bug         |           Status:  new
              Priority:  high        |        Milestone:
             Component:  Compiler    |          Version:  7.9
            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):

 What factor works?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9857#comment:2>
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