[GHC] #13902: Misleading function arity mismatch error with TypeApplications

[GHC]

#13902: Misleading function arity mismatch error with TypeApplications
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        Reporter:  RyanGlScott       |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.0.1
  checker)                           |             Keywords:
      Resolution:                    |  TypeApplications
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Poor/confusing    |  Unknown/Multiple
  error message                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by vanto):

 >>We ought to be able to do better.\\
 Yes and it's good to share ideas.\\
 I'd like to make a suggestion. It is not worth writing

 {{{
 In the expression: f @Int 42 5
 In an equation for ‘g’: g = f @Int 42 5
 }}}
 Since the compiler already indicates the place that has the expression and
 equation.\\

 {{{
  |
 7 | g = f @Int 42 5
   |     ^^^^^^^^^^^
 }}}
 Both sentences make redundancy and does not serve better to explain.
 Too much explanation is detrimental to the explanation.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13902#comment:2>
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