[GHC] #12742: Instantiation of invisible type family arguments is too eager

[GHC]

#12742: Instantiation of invisible type family arguments is too eager
-------------------------------------+-------------------------------------
        Reporter:  goldfire          |                Owner:  goldfire
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.0.1
      Resolution:  fixed             |             Keywords:  TypeInType
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  GHC rejects       |            Test Case:
  valid program                      |  dependent/should_compile/T12742
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by RyanGlScott):

 * testcase:   => dependent/should_compile/T12742
 * status:  new => closed
 * resolution:   => fixed


Comment:

 As noted in comment:2 and comment:3, this has been fixed, and a regression
 test has been added.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12742#comment:4>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler