[GHC] #14332: Deriving clauses can have forall types

[GHC]

#14332: Deriving clauses can have forall types
-------------------------------------+-------------------------------------
        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.2.1
  checker)                           |
      Resolution:                    |             Keywords:  deriving
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC accepts       |  Unknown/Multiple
  invalid program                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by RyanGlScott):

 I think I'm sold on this idea now, after hearing Simon's rationalization
 of it in https://ghc.haskell.org/trac/ghc/ticket/14331#comment:8.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14332#comment:13>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler