[GHC] #7676: Conflicting definitions error for simple variable with guards

[GHC]

#7676: Conflicting definitions error for simple variable with guards
--------------------------------------+-------------------------------------
Reporter:  Mathnerd314                |          Owner:                  
    Type:  bug                        |         Status:  new             
Priority:  normal                     |      Component:  Compiler        
 Version:  7.7                        |       Keywords:                  
      Os:  Unknown/Multiple           |   Architecture:  Unknown/Multiple
 Failure:  GHC rejects valid program  |      Blockedby:                  
Blocking:                             |        Related:                  
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 The following program:
 {{{
 a | True = 1
 a | False = 2
 }}}
 produces an error (on 7.4.1 and 7.7.2012117):
 {{{
 Conflicting definitions for 'a'
 }}}
 The following two examples produce no error:
 {{{
 b | True = 1
   | False = 2

 c _ | True = 1
 c _ | False = 2
 }}}
 I would expect `a`, `b`. and `c ()` to have identical behaviour.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7676>
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