[GHC] #8705: Type inference regression with local dictionaries

[GHC]

#8705: Type inference regression with local dictionaries
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        Reporter:  goldfire                 |            Owner:
            Type:  bug                      |           Status:  new
        Priority:  high                     |        Milestone:  7.8.1
       Component:  Compiler (Type checker)  |          Version:  7.8.1-rc1
      Resolution:                           |         Keywords:
Operating System:  Unknown/Multiple         |     Architecture:
 Type of failure:  None/Unknown             |  Unknown/Multiple
       Test Case:                           |       Difficulty:  Unknown
        Blocking:                           |       Blocked By:
                                            |  Related Tickets:
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Comment (by goldfire):

 Your text is correct, but your code is not. I believe you meant

 {{{
 G1:   lst ~ n1 : []
 G2:   lst ~ n0 : n2
 G3:   n :<=: n0
 }}}

 Note the `n0` in the last line. Otherwise, yes, I agree with your comment.

 I'll try to reduce the case more, yes.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8705#comment:4>
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