[GHC] #11400: * is not an indexed type family

[GHC]

#11400: * is not an indexed type family
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        Reporter:  RyanGlScott       |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.1
  checker)                           |
      Resolution:                    |             Keywords:  TypeInType
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by jstolarek):

 I've run into the same problem. I think this is a ''wontfix''. Richard
 promised to document the need for parens in the User's Guide, but I don't
 think he did that yet. Is this the relevant section:

 http://downloads.haskell.org/~ghc/master/users-guide//glasgow_exts.html
 #promoting-type-operators

 ?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11400#comment:2>
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