[GHC] #11196: TypeInType performance regressions

[GHC]

#11196: TypeInType performance regressions
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        Reporter:  goldfire          |                Owner:
            Type:  bug               |               Status:  new
        Priority:  high              |            Milestone:  8.0.2
       Component:  Compiler          |              Version:  7.11
      Resolution:                    |             Keywords:  TypeInType
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 goldfire):

 I just thought of a way to make forward progress on here: I still have the
 very long and very tortuous commit history of my development of
 `TypeInType`. (It's at [https://github.com/goldfirere/ghc/tree/nokinds the
 nokinds branch of my github fork].) Someone (including perhaps a future
 me) could just bisect. This would be complicated by the fact that many
 commits in there do not compile. But git's bisect mechanism has a way of
 dealing with that (`git bisect skip`). So this process would be quite
 long, but it also seems quite likely to lead to a solution. Unlike my
 previous attempts.

 If anyone has written a script for use with `git bisect run` that might
 aid in this process, do post!

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11196#comment:11>
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