[GHC] #9582: Associated Type Synonyms do not unfold in InstanceSigs

[GHC]

#9582: Associated Type Synonyms do not unfold in InstanceSigs
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              Reporter:              |            Owner:
  andreas.abel                       |           Status:  closed
                  Type:  bug         |        Milestone:  7.10.1
              Priority:  normal      |          Version:  7.8.3
             Component:  Compiler    |         Keywords:  InstanceSigs
  (Type checker)                     |  TypeFamilies
            Resolution:  fixed       |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:              |  Related Tickets:
  None/Unknown                       |
             Test Case:  indexed-    |
  types/should_compile/T9582         |
              Blocking:              |
Differential Revisions:              |
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Comment (by andreas.abel):

 Thanks for fixing.  At the point where I was stuck, I would have needed to
 dive much deeper into GHC, I guess, and I did not have the time.
 It was an interesting experience anyway.  Contributing to GHC is a full-
 time job, as for Agda, and I cannot work two jobs.  I am rather glad to
 work on Agda, which "only" takes 15 min for compilation + test suite---as
 opposed to GHC's 120 min.
 Cheers and thanks for your work, Andreas

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9582#comment:14>
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