[GHC] #11348: Local open type families instances ignored during type checking

[GHC]

#11348: Local open type families instances ignored during type checking
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        Reporter:  alexvieth         |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1-rc1
      Resolution:  fixed             |             Keywords:  TypeFamilies
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  GHC rejects       |            Test Case:
  valid program                      |  typecheck/should_compile/T11348
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D1762
       Wiki Page:                    |
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Comment (by Ben Gamari <ben@…>):

 In [changeset:"a4f2b76661fa2056172b27b9883df1f488b7a0dc/ghc" a4f2b76/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="a4f2b76661fa2056172b27b9883df1f488b7a0dc"
 testsuite: Add regression test for #12381

 Test Plan: Validate

 Reviewers: austin

 Subscribers: thomie

 Differential Revision: https://phabricator.haskell.org/D2408

 GHC Trac Issues: #12381, #11348
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11348#comment:20>
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