[GHC] #13060: Visible type application doesn't work for functions with inferred types

[GHC]

#13060: Visible type application doesn't work for functions with inferred types
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        Reporter:  Feuerbach         |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.0.1
  checker)                           |
      Resolution:  invalid           |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by rwbarton):

 Well (I don't know whether this is documented anywhere but) that should
 not be the confusing part--`forall {a}.` means you can't use a type
 application to specify the type. The confusing part is the behavior of `:t
 id` and `:t foo`. But `:info` will show you the difference.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13060#comment:3>
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