[GHC] #11237: Type synonyms are not expanded in the data type declaration return kind

[GHC]

#11237: Type synonyms are not expanded in the data type declaration return kind
-------------------------------------+-------------------------------------
        Reporter:  thomasw           |                Owner:  jstolarek
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  7.11
  checker)                           |
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  GHC rejects       |            Test Case:
  valid program                      |  typecheck/should_compile/T11237
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D1636
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by simonpj):

 What commit fixed this?

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11237#comment:4>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler