[GHC] #11962: Support induction recursion

[GHC]

#11962: Support induction recursion
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        Reporter:  goldfire          |                Owner:  (none)
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.1
      Resolution:                    |             Keywords:  TypeInType
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:  9269              |             Blocking:
 Related Tickets:  #12612, #13901,   |  Differential Rev(s):
  #15942                             |
       Wiki Page:                    |
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Comment (by simonpj):

 We think that implementing #12088, comment:37 will nail this.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11962#comment:13>
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