[GHC] #15050: ScopedTypeVariables could allow more programs

[GHC]

#15050: ScopedTypeVariables could allow more programs
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        Reporter:  nomeata           |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.4.1
      Resolution:                    |             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 RyanGlScott):

 Nope. I have a personal policy that I never make a GHC proposal unless I
 understand how it would be implemented in GHC and would be willing to
 implement it myself, and I don't meet these criteria. Nor am I
 particularly eager to dive into this part of the codebase—typechecking
 scoped type variables is black magic, and I'm content to let the experts
 handle it.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15050#comment:9>
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