[GHC] #10527: Panic Simplifier ticks exhausted with type families

[GHC]

#10527: Panic Simplifier ticks exhausted with type families
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              Reporter:  sopvop      |             Owner:
                  Type:  bug         |            Status:  new
              Priority:  normal      |         Milestone:
             Component:  Compiler    |           Version:  7.10.1-rc1
              Keywords:              |  Operating System:  Unknown/Multiple
          Architecture:              |   Type of failure:  None/Unknown
  Unknown/Multiple                   |        Blocked By:
             Test Case:              |   Related Tickets:
              Blocking:              |
Differential Revisions:              |
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 I've tried to compile my vinyl-like records with 7.10.2-rc1 and got:
 {{{
 ghc: panic! (the 'impossible' happened)
   (GHC version 7.10.1.20150612 for x86_64-unknown-linux):
         Simplifier ticks exhausted
   When trying RuleFired Class op rreplace
   To increase the limit, use -fsimpl-tick-factor=N (default 100)
   If you need to do this, let GHC HQ know, and what factor you needed
   To see detailed counts use -ddump-simpl-stats
   Total ticks: 225484

 Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

 }}}

 Attached self contained test compiles with 7.10.1, but fails with
 7.10.2-rc1 when compiled with optimizations.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10527>
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