[GHC] #14643: Partial type signatures in class constraints behave unexpectedly

[GHC]

#14643: Partial type signatures in class constraints behave unexpectedly
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        Reporter:  mnislaih          |                Owner:  (none)
            Type:  bug               |               Status:  merge
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.2.2
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:  partial-
                                     |  sigs/should_compile/T14643, T14643a
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by simonpj):

 * testcase:   => partial-sigs/should_compile/T14643, T14643a
 * status:  new => merge


Comment:

 Thanks for the report. It was trickier than I thought, and showed up not
 one but two separate bugs.

 We could merge this... it's an outright bug.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14643#comment:5>
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