[GHC] #11740: RFC kind synonyms

[GHC]

#11740: RFC kind synonyms
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        Reporter:  Iceland_jack      |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.3
      Resolution:  wontfix           |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by Iceland_jack):

 I'll jot down some [https://github.com/kylcarte/type-
 combinators/blob/master/src/Type/Family/Constraint.hs data points] for
 posteriority

 {{{#!hs
 -- | The empty 'Constraint'.
 type ØC   = (() :: Constraint)
 type Fail = (True ~ False)
 }}}

 That library also has a lot of ideas

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11740#comment:7>
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