[GHC] #7253: Top-level bindings in ghci

[GHC]

#7253: Top-level bindings in ghci
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        Reporter:  Feuerbach         |                   Owner:
            Type:  feature request   |                  Status:  new
        Priority:  normal            |               Milestone:  8.0.1
       Component:  GHCi              |                 Version:  7.6.1
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Other             |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:
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Comment (by simonpj):

 > My first instinct was to treat declarations like "a = 1" in GHCI as
 equivalent to "let a = 1"; this would be a straightforward matter of
 parsing. On the other hand, as thoughtpolice comments, let-bound variables
 are treated subtly differently than top-level bindings, so the proper
 solution may be more involved.

 Would you like to elaborate on the "subtle difference"?  Is it just
 `MonoLocalBinds`?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7253#comment:9>
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