[GHC] #9091: print and/or apply constraints when showing info for typed holes

[GHC]

#9091: print and/or apply constraints when showing info for typed holes
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        Reporter:  kosmikus                 |            Owner:
            Type:  feature request          |           Status:  new
        Priority:  normal                   |        Milestone:
       Component:  Compiler (Type checker)  |          Version:  7.8.2
      Resolution:                           |         Keywords:
Operating System:  Unknown/Multiple         |     Architecture:
 Type of failure:  None/Unknown             |  Unknown/Multiple
       Test Case:                           |       Difficulty:  Unknown
        Blocking:                           |       Blocked By:
                                            |  Related Tickets:
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Comment (by kosmikus):

 I'd certainly also be ok with distinguishing givens and wanteds, and I
 agree that it may make things much clearer in practice. I'd prefer
 slightly shorter messages than the ones you suggest, but that's a minor
 point.

 Regarding implication constraints: perhaps I'm missing something, but
 aren't these always global? I wouldn't include global knowledge in hole
 information.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9091#comment:4>
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