[GHC] #11639: `:print` being wacky

[GHC]

#11639: `:print` being wacky
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        Reporter:  TheKing42   |                Owner:
            Type:  bug         |               Status:  closed
        Priority:  normal      |            Milestone:  8.0.1
       Component:  Compiler    |              Version:  7.10.3
      Resolution:  fixed       |             Keywords:
Operating System:  Linux       |         Architecture:  Unknown/Multiple
 Type of failure:  GHCi crash  |            Test Case:
      Blocked By:              |             Blocking:
 Related Tickets:              |  Differential Rev(s):
       Wiki Page:              |
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Changes (by bgamari):

 * status:  new => closed
 * resolution:   => fixed
 * milestone:   => 8.0.1


Comment:

 This appears to be fixed in 8.0,
 {{{
 $ ghci
 GHCi, version 8.0.0.20160328: http://www.haskell.org/ghc/  :? for help
 Loaded GHCi configuration from /home/ben/.ghci
 λ> let x = 1:x
 λ> :print x
 x = (_t1::Num a => [a])
 λ> head _t1

 <interactive>:3:6: error:
     • No instance for (Num a) arising from a use of ‘_t1’
     • In the first argument of ‘head’, namely ‘_t1’
       In the expression: head _t1
       In an equation for ‘it’: it = head _t1
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11639#comment:2>
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