[GHC] #9177: Suggest Int when user uses int

[GHC]

#9177: Suggest Int when user uses int
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        Reporter:  nomeata           |            Owner:  nomeata
            Type:  feature request   |           Status:  closed
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          Version:  7.8.2
      Resolution:  fixed             |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:  #1388
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Comment (by goldfire):

 Replying to [comment:3 nomeata]:
 > I have two variants: One that suggests `Integer` when `integer` is
 typed, and one that suggests even `Integer` if `integerr` is typed (using
 the same edit distance metric stuff). I’ll push the first, followed by the
 second, so that one can easily revert.
 >
 > Of course there is no limit on how smart the error message can be. In
 `type Foo = eq`, one cannot mean `Eq` (as it is a class), but that is not
 available on the level of `OccNames`. But I guess the suggestion is still
 an improvement.

 In case anyone is inspired to make this smarter, I'll note that `type Foo
 = Eq` is perfectly reasonable, in the presence of !ConstraintKinds.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9177#comment:10>
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