[GHC] #10634: Type class with bijective type functions

[GHC]

#10634: Type class with bijective type functions
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        Reporter:  Lemming           |                   Owner:
            Type:  bug               |                  Status:  closed
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.10.1
      Resolution:  duplicate         |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:  #10009            |  Differential Revisions:
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Changes (by jstolarek):

 * status:  new => closed
 * resolution:   => duplicate
 * related:   => #10009


Comment:

 It's a bug. See #10009.

 As a side note: I don't think it is correct to call this a bijection.
 Bijection means that we have injectivity (which is true) and surjectivity
 (which is not true).

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10634#comment:1>
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