[GHC] #11595: Merge some TypeInType fixes

[GHC]

#11595: Merge some TypeInType fixes
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           Reporter:  goldfire       |             Owner:
               Type:  task           |            Status:  new
           Priority:  normal         |         Milestone:  8.0.1
          Component:  Compiler       |           Version:  8.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
-------------------------------------+-------------------------------------
 There were several commits I just pushed that should be merged, but there
 is no associated ticket.

 b962bcc609cf3239d61ba281ca0eccc3cd89d99d

 90f35612f16ff9cb2466cc936f12e748402abb85

 aff5bb47b70450bb1e3e4ac3c18ea35d13f9ac7c

 7d8031ba3d36a9378a40834aa3e3817d8f7f310f

 6f952f58bc4d592265134e4e13af46da9c56560f

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11595>
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