[GHC] #11975: New GHCi command to print out the type of an expression without instantiating

[GHC]

#11975: New GHCi command to print out the type of an expression without
instantiating
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        Reporter:  goldfire          |                Owner:
            Type:  feature request   |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  GHCi              |              Version:  8.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D2136
       Wiki Page:                    |
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Comment (by Richard Eisenberg <eir@…>):

 In [changeset:"8035d1a5dc7290e8d3d61446ee4861e0b460214e/ghc" 8035d1a/ghc]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="8035d1a5dc7290e8d3d61446ee4861e0b460214e"
 Fix #10963 and #11975 by adding new cmds to GHCi.

 See the user's guide entry or the Note [TcRnExprMode] in TcRnDriver.

 Test cases: ghci/scripts/T{10963,11975}
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11975#comment:3>
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