[GHC] #7495: generalizing overloaded list syntax to Sized Lists, HLists, HRecords, etc (was: Rebindable list syntax?)

[GHC]

#7495: generalizing overloaded list syntax to Sized Lists, HLists, HRecords, etc
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              Reporter:  nwf         |            Owner:  carter
                  Type:  feature     |           Status:  new
  request                            |        Milestone:  7.10.1
              Priority:  normal      |          Version:  7.6.1
             Component:  Compiler    |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:              |  Related Tickets:
  None/Unknown                       |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Changes (by carter):

 * owner:   => carter


Comment:

 I've been working on designing a set of classes that subsumes this
 proposal.
 the work in progress in the class design can be found
 https://github.com/cartazio/HetList/blob/master/HetList.hs

 It doesn't yet have the analogues machinery to support the older
 `fromList` style instances, but thats easy to add.

 As part of the dev I'm making sure I can write useful instances for the
 fancy HList libs that are in the while, like `HList` and `Vinyl`

 after another week or two of polish, I hope to have a candidate patch with
 the right desugaring (plus some extra work to support current style
 instances if possible)

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7495#comment:7>
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