[GHC] #3866: Constr Eq instance should have better documentation or semantics

[GHC]

#3866: Constr Eq instance should have better documentation or semantics
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    Reporter:  batterseapower    |       Owner:  dreixel          
        Type:  bug               |      Status:  assigned         
    Priority:  normal            |   Component:  libraries (other)
     Version:  6.12.1            |    Keywords:  syb              
          Os:  Unknown/Multiple  |    Testcase:                   
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown     
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Comment(by NeilMitchell):

 dreixel: Thanks for doing and patch and writing some better documentation.
 However, wouldn't it be better to avoid details of the implementation,
 skip the bug report link, and just document the API. How about:

 {{{
 -- | Representation of constructors. Note that equality on constructors
 with different types may not work -- i.e. the constructors for 'False' and
 'Nothing' may compare equal.
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3866#comment:3>
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