[GHC] #10118: No ambiguity check when `ConstrainedClassMethods` is on

[GHC]

#10118: No ambiguity check when `ConstrainedClassMethods` is on
-------------------------------------+-------------------------------------
        Reporter:  thomie            |                   Owner:
            Type:  bug               |                  Status:  patch
        Priority:  normal            |               Milestone:  7.12.1
       Component:  Compiler (Type    |                 Version:  7.10.1-rc2
  checker)                           |                Keywords:
      Resolution:                    |            Architecture:
Operating System:  Unknown/Multiple  |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |  typecheck/should_fail/T10118
 Related Tickets:  #7854             |                Blocking:
                                     |  Differential Revisions:  Phab:D686
-------------------------------------+-------------------------------------
Changes (by thomie):

 * status:  new => patch
 * testcase:   => typecheck/should_fail/T10118
 * differential:   => Phab:D686


--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10118#comment:1>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler