[GHC] #10311: package name returned from tyConPackage is garbled

[GHC]

#10311: package name returned from tyConPackage is garbled
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              Reporter:  j.waldmann  |             Owner:
                  Type:  bug         |            Status:  new
              Priority:  normal      |         Milestone:
             Component:  Compiler    |           Version:  7.10.1
              Keywords:              |  Operating System:  Unknown/Multiple
          Architecture:              |   Type of failure:  None/Unknown
  Unknown/Multiple                   |        Blocked By:
             Test Case:              |   Related Tickets:
              Blocking:              |
Differential Revisions:              |
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 I am using tyConPackage (etc.) to programmatically generate links to
 haddock documentation (e.g., from a typed edit widget). This is now
 broken:

 {{{
 import Data.Map
 import Data.Typeable
 tyConPackage $  typeRepTyCon $  typeOf $ fromList [(1,2)]

 in ghc-7.8.4: "containers-0.5.5.1"
 in ghc-7.10.1: "conta_47ajk3tbda43DFWyeF3oHQ"
 }}}

 and I don't see how to get the actual package name.

 Cf. http://stackoverflow.com/questions/29638177/tyconpackage-changed-from-
 ghc-7-8-to-ghc-7-10

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10311>
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