[GHC] #8809: Prettier error messages?

[GHC]

#8809: Prettier error messages?
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        Reporter:  joelteon          |                Owner:
            Type:  feature request   |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  7.9
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
  #8809,#10073,#10179,#12906         |
       Wiki Page:                    |
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Comment (by joehillen):

 +1 for margin. I don't see the need for concern about line length; no
 other compiler seems to care about that.

 I really hope the "In the first/second argument of" can someday be
 dropped. It's useless noise once you have carets, and it's always been
 difficult to grok.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8809#comment:43>
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