[GHC] #7730: :info and polykinds

[GHC]

#7730: :info and polykinds
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        Reporter:  monoidal                 |            Owner:  archblob
            Type:  bug                      |           Status:  new
        Priority:  normal                   |        Milestone:  7.8.3
       Component:  Compiler (Type checker)  |          Version:  7.6.2
      Resolution:                           |         Keywords:
Operating System:  Unknown/Multiple         |     Architecture:
 Type of failure:  None/Unknown             |  Unknown/Multiple
       Test Case:                           |       Difficulty:  Unknown
        Blocking:                           |       Blocked By:
                                            |  Related Tickets:  #8776
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Comment (by archblob):

 I have attached a working patch so we can discuss it.

 This solves the problem reported in the ticket but adds a couple of new
 ones that I'll hopefully solve as I get a better understanding of the
 codebase:
    1. Bangs are not printed properly, specifically {-# UNPACK #-} pragmas
    2. I don't really know how to get the family name for associated data
 families, right
       now instances are printed with the OccName as R:FamilyName Type

 Also, what should we do about RecursiveFlags, Promotable and Associated
 CTypes info ? right now these are not printed in order to conform to the
 current :info format.

 I have not added test cases or modified the old ones to conform to the new
 ppr format yer, I will add them when the ticket reaches the final form.

 Andrei

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7730#comment:19>
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