[GHC] #13842: Is this output from :all-types correct

[GHC]

#13842: Is this output from :all-types correct
-------------------------------------+-------------------------------------
           Reporter:  Iceland_jack   |             Owner:  (none)
               Type:  bug            |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  8.0.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 Is this the expected outcome of loading

 {{{#!hs
 data B = F | T

 instance Eq B
 }}}

 with
 [https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/ghci.html
 #ghci-cmd-:set%20+c :set +c] and then running the `:all-types` command?

 {{{
 λ> :all-types
 /tmp/test.hs:(3,10)-(3,14): GHC.Classes.Eq Main.B
 /tmp/test.hs:(3,10)-(3,14): (Main.B -> Main.B -> GHC.Types.Bool) ->
 GHC.Classes.Eq Main.B
 /tmp/test.hs:(3,10)-(3,14): (Main.B -> Main.B -> GHC.Types.Bool) ->
 (Main.B -> Main.B -> GHC.Types.Bool) -> GHC.Classes.Eq Main.B
 /tmp/test.hs:(3,10)-(3,14): Main.B -> Main.B -> GHC.Types.Bool
 /tmp/test.hs:(3,10)-(3,14): Main.B -> Main.B -> GHC.Types.Bool
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13842>
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