[GHC] #5296: Add explicit type applications

[GHC]

#5296: Add explicit type applications
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        Reporter:  dsf               |                Owner:  goldfire
            Type:  feature request   |               Status:  new
        Priority:  low               |            Milestone:  8.0.1
       Component:  Compiler (Type    |              Version:  7.0.3
  checker)                           |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:  1897              |             Blocking:  10770
 Related Tickets:  #4466             |  Differential Rev(s):  Phab:D1681
       Wiki Page:                    |
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Comment (by Richard Eisenberg <eir@…>):

 In [changeset:"2db18b8135335da2da9918b722699df684097be9/ghc"
 2db18b81/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="2db18b8135335da2da9918b722699df684097be9"
 Visible type application

 This re-working of the typechecker algorithm is based on
 the paper "Visible type application", by Richard Eisenberg,
 Stephanie Weirich, and Hamidhasan Ahmed, to be published at
 ESOP'16.

 This patch introduces -XTypeApplications, which allows users
 to say, for example `id @Int`, which has type `Int -> Int`. See
 the changes to the user manual for details.

 This patch addresses tickets #10619, #5296, #10589.
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5296#comment:27>
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