[GHC] #450: "class A where a :: A -> Int" panics GHC 6.4

[GHC]

#450: "class A where a :: A -> Int" panics GHC 6.4
--------------------------------+--------------------
       Reporter:  carlossch     |      Owner:  nobody
           Type:  bug           |     Status:  closed
       Priority:  normal        |  Milestone:
      Component:  None          |    Version:  None
     Resolution:  Duplicate     |   Keywords:
Type of failure:  None/Unknown  |
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Changes (by Ben Gamari <ben@…>):

 * failure:   => None/Unknown


Comment:

 In [changeset:"5229c43ccf77bcbffeced01dccb27398d017fa34/ghc"
 5229c43c/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="5229c43ccf77bcbffeced01dccb27398d017fa34"
 Squashed 'hadrian/' changes from 438dc576e7..5ebb69ae1e

 5ebb69ae1e Drop GccLtXX flags, require GCC > 4.7 and up (#450)

 git-subtree-dir: hadrian
 git-subtree-split: 5ebb69ae1eb063f25c59383bffb3b5449015c6f9
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/450#comment:3>
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