[GHC] #11235: Haddock shows no class members

[GHC]

#11235: Haddock shows no class members
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        Reporter:  bgamari           |                Owner:  bgamari
            Type:  task              |               Status:  new
        Priority:  high              |            Milestone:  8.0.1
       Component:  Compiler          |              Version:  7.10.3
      Resolution:                    |             Keywords:
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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Changes (by bgamari):

 * cc: simonpj (added)


Comment:

 Simon, I believe this may be the result of your wildcards rework. The
 issues appears to be that classes' `tcdSigs` have no useful signatures by
 the time it gets to Haddock (namely `ppClassDecl`). If my debug output is
 to be believed `tcdSigs` contains only `MinimalSig`s.,

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11235#comment:7>
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