[GHC] #4268: Warning for ANN pragmas when GHCi is not supported

[GHC]

#4268: Warning for ANN pragmas when GHCi is not supported
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        Reporter:  simonmar    |            Owner:
            Type:  bug         |           Status:  closed
        Priority:  high        |        Milestone:  7.8.1
       Component:  Compiler    |          Version:  7.0.4
      Resolution:  fixed       |         Keywords:
Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple             |       Difficulty:  Easy (less than 1 hour)
 Type of failure:  Other       |       Blocked By:
       Test Case:              |  Related Tickets:  #8312, #5105
        Blocking:              |
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Comment (by simonmar):

 Might have been slightly better to say "this is a stage-1 compiler or
 doesn't support GHCi" or somesuch, because some platforms just don't
 support GHCi.  Not a big deal though.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4268#comment:18>
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