[GHC] #8305: ghci macros override built-ins for command expansion

[GHC]

#8305: ghci macros override built-ins for command expansion
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        Reporter:  rwbarton          |            Owner:
            Type:  bug               |           Status:  patch
        Priority:  highest           |        Milestone:  7.8.1
       Component:  GHCi              |          Version:  7.7
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:  #8113
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Comment (by thoughtpolice):

 Thank you Herbert. This patch looks nice - please commit and add
 documentation.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8305#comment:8>
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