[GHC] #11381: Put injective type families in a separate language extension

[GHC]

#11381: Put injective type families in a separate language extension
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        Reporter:  jstolarek         |                Owner:  jstolarek
            Type:  task              |               Status:  new
        Priority:  normal            |            Milestone:  8.0.1
       Component:  Compiler          |              Version:  8.0.1-rc1
      Resolution:                    |             Keywords:  TypeFamilies,
                                     |  Injective
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:  driver/T11381
      Blocked By:                    |             Blocking:
 Related Tickets:  #6018             |  Differential Rev(s):  Phab:D1750
       Wiki Page:                    |
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Changes (by jstolarek):

 * testcase:   => driver/T11381
 * differential:   => Phab:D1750


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11381#comment:1>
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