[GHC] #3460: Can't use superclass when type coercions are involved

[GHC]

#3460: Can't use superclass when type coercions are involved
-------------------------------------------------+--------------------------
  Reporter:  ryani                               |          Owner:  chak            
      Type:  bug                                 |         Status:  closed          
  Priority:  low                                 |      Milestone:  7.0.1           
 Component:  Compiler (Type checker)             |        Version:  6.10.4          
Resolution:  fixed                               |       Keywords:                  
  Testcase:  indexed-types/should_compile/T3460  |      Blockedby:                  
Difficulty:  Unknown                             |             Os:  Unknown/Multiple
  Blocking:                                      |   Architecture:  Unknown/Multiple
   Failure:  None/Unknown                        |  
-------------------------------------------------+--------------------------
Changes (by simonpj):

  * status:  new => closed
  * failure:  => None/Unknown
  * resolution:  => fixed
  * testcase:  => indexed-types/should_compile/T3460


Comment:

 Now works in HEAD.  Regression test added.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3460#comment:5>
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