[GHC] #9200: Milner-Mycroft failure at the kind level

[GHC]

#9200: Milner-Mycroft failure at the kind level
-------------------------------------+-------------------------------------
              Reporter:  ekmett      |            Owner:  goldfire
                  Type:  bug         |           Status:  new
              Priority:  normal      |        Milestone:
             Component:  Compiler    |          Version:  7.8.2
  (Type checker)                     |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:  GHC         |  Related Tickets:
  rejects valid program              |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
-------------------------------------+-------------------------------------

Comment (by Richard Eisenberg <eir@…>):

 In [changeset:"64859308231551de2aed839003994b29b99409c0/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="64859308231551de2aed839003994b29b99409c0"
 Change definition of CUSK for data and class definitions (#9200).

 Now, a CUSK is when (and only when) all type variables are annotated.
 This allows classes to participate in polymorphic recursion.
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9200#comment:39>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler