[GHC] #10040: Add hint on typed-hole error message

[GHC]

#10040: Add hint on typed-hole error message
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        Reporter:  simonpj           |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.8.4
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  None/Unknown      |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Comment (by Simon Peyton Jones <simonpj@…>):

 In [changeset:"276da7929c187f007c198a38e88bdad91866e500/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="276da7929c187f007c198a38e88bdad91866e500"
 Improve error message on typed holes, and user manual (Tradc #10040)
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10040#comment:1>
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