[GHC] #3395: Template Haskell crashes

[GHC]

#3395: Template Haskell crashes
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 Reporter:  NeilMitchell      |          Owner:                  
     Type:  bug               |         Status:  new             
 Priority:  normal            |      Milestone:                  
Component:  Compiler          |        Version:  6.10.4          
 Severity:  normal            |     Resolution:                  
 Keywords:                    |       Testcase:                  
       Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
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Comment (by NeilMitchell):

 As a hint for anyone wanting to work around this bug, converting the list
 comp to a {{{do}}} block does work.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3395#comment:1>
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