[GHC] #15962: Type family & typeclass interaction suppresses errors

[GHC]

#15962: Type family & typeclass interaction suppresses errors
-------------------------------------+-------------------------------------
        Reporter:  madgen            |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:  8.8.1
       Component:  Compiler (Type    |              Version:  8.4.3
  checker)                           |             Keywords:  TypedHoles,
      Resolution:  fixed             |  newcomer
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Incorrect         |            Test Case:
  error/warning at compile-time      |  typecheck/should_fail/T15962
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by RyanGlScott):

 * testcase:   => typecheck/should_fail/T15962
 * status:  new => closed
 * resolution:   => fixed
 * milestone:  ⊥ => 8.8.1


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15962#comment:3>
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