[GHC] #14101: Type synonyms can make roles too conservative

[GHC]

#14101: Type synonyms can make roles too conservative
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        Reporter:  dfeuer            |                Owner:  (none)
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:  8.4.1
       Component:  Compiler (Type    |              Version:  8.2.1
  checker)                           |
      Resolution:                    |             Keywords:  roles
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #8234             |  Differential Rev(s):  Phab:D3838
       Wiki Page:                    |
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Comment (by Ryan Scott <ryan.gl.scott@…>):

 In [changeset:"c6462ab02882779d7e33f2cac00cd89a9ac192f1/ghc" c6462ab/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="c6462ab02882779d7e33f2cac00cd89a9ac192f1"
 Add test for #14101

 I forgot to do this in
 0bb1e84034a12d7f700b48fca6710c01bd08f397.
 }}}

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14101#comment:12>
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