[GHC] #9334: Implement "instance chains"

[GHC]

#9334: Implement "instance chains"
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        Reporter:  diatchki          |                   Owner:  diatchki
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler (Type    |                 Version:  7.9
  checker)                           |                Keywords:
      Resolution:                    |            Architecture:
Operating System:  Unknown/Multiple  |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Changes (by garrett):

 * cc: garrett (added)


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9334#comment:10>
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