[GHC] #7688: :kind should do kind generalisation

[GHC]

#7688: :kind should do kind generalisation
---------------------------------+------------------------------------------
    Reporter:  simonpj           |       Owner:                  
        Type:  bug               |      Status:  new             
    Priority:  normal            |   Milestone:  7.8.1           
   Component:  Compiler          |     Version:  7.6.2           
    Keywords:                    |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:                  
     Related:                    |  
---------------------------------+------------------------------------------

Comment(by goldfire):

 I don't know how hard it would be to implement, but you could always ask
 the user if they intended to turn on {{{-XPolyKinds}}} whenever having
 that option on would have produced a different output than having that
 option off.

 I've hit this problem numerous times and almost even wrote a bug report
 similar to yours, before I figured out what was going on. This issue is
 what prompted me finally to write a {{{ghci.conf}}} file.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7688#comment:3>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler