[GHC] #15147: Type checker plugin receives Wanteds that are not completely unflattened

[GHC]

#15147: Type checker plugin receives Wanteds that are not completely unflattened
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        Reporter:  nfrisby           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.8.1
       Component:  Compiler (Type    |              Version:  8.4.1
  checker)                           |             Keywords:
      Resolution:                    |  TypeCheckerPlugins
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 simonpj):

 > One of those is if the fsks and fmvs were both left in place in both
 Givens and in Wanteds; no extra unflattening before invoking plugins.

 Great! That sounds in line with the proposal in comment:16.  Would you
 like to socialise it with other plugin authors and check they are happy?

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15147#comment:22>
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