[GHC] #3731: SYB gone wild - mysterious <<loop>> in code derived from an syb-with-class example

[GHC]

#3731: SYB gone wild - mysterious <<loop>> in code derived from an syb-with-class
example
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  Reporter:  dsf                          |          Owner:                  
      Type:  bug                          |         Status:  new             
  Priority:  normal                       |      Milestone:                  
 Component:  Compiler                     |        Version:  6.12.1          
Resolution:                               |       Keywords:                  
Difficulty:                               |             Os:  Unknown/Multiple
  Testcase:                               |   Architecture:  Unknown/Multiple
   Failure:  Incorrect result at runtime  |  
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Comment (by dsf):

 We are looking into the feasability of using HEAD - we need to build about
 125 packages with it.  We just managed this with 6.12.1 today, so I will
 try to take the next step.  Any idea when that fix went in?  An older
 snapshot may be an easier step than the latest.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3731#comment:5>
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