[GHC] #8601: runghc from standard input and --ghc-args

[GHC]

#8601: runghc from standard input and --ghc-args
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        Reporter:  wuzzeb            |            Owner:
            Type:  bug               |           Status:  patch
        Priority:  normal            |        Milestone:
       Component:  Compiler          |          Version:  7.6.3
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Changes (by wuzzeb):

 * status:  new => patch


Comment:

 I fixed the bug in the attached patch.  I also kept around the ability to
 use --ghc-arg=--ghc-arg= as a prefix for backwards compatibility, although
 I have no strong feelings so if you want to take it out that is fine.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8601#comment:1>
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