[GHC] #10963: Beginner-targeted language extension

[GHC]

#10963: Beginner-targeted language extension
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        Reporter:  kanetw            |                Owner:
            Type:  feature request   |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.10.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2136
       Wiki Page:                    |
  [wiki:Design/GHCi/Type]            |
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Comment (by niteria):

 I like the idea in comment:10, but combinatorial explosion makes it hard
 to implement. I think providing some ability for library writers to
 annotate the function with common specializations would go a long way.
 That's what already happens in the `lens` library, GHC just isn't aware of
 it.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10963#comment:14>
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