[GHC] #15316: Regarding coherence and implication loops in presence of QuantifiedConstraints

[GHC]

#15316: Regarding coherence and implication loops in presence of
QuantifiedConstraints
-------------------------------------+-------------------------------------
        Reporter:  mniip             |                Owner:  (none)
            Type:  bug               |               Status:  closed
        Priority:  high              |            Milestone:  8.8.1
       Component:  Compiler (Type    |              Version:  8.5
  checker)                           |             Keywords:
      Resolution:  fixed             |  QuantifiedConstraints
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  GHC accepts       |            Test Case:  quantified-
  invalid program                    |  constraints/T15316
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------
Changes (by bgamari):

 * status:  merge => closed
 * resolution:   => fixed
 * milestone:  8.6.1 => 8.8.1


Comment:

 Unfortunately this looks to be a bit large to backport to 8.6.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15316#comment:12>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler