[GHC] #13251: Must perform family consistency check on non-imported identifiers

[GHC]

#13251: Must perform family consistency check on non-imported identifiers
-------------------------------------+-------------------------------------
        Reporter:  ezyang            |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.1
  checker)                           |
      Resolution:                    |             Keywords:  TypeFamilies
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC accepts       |  Unknown/Multiple
  invalid program                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by simonpj):

 > Then "Tracking instance providers" needs to include this case as well

 Yes, good point.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13251#comment:7>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler