[GHC] #12870: Allow completely disabling +RTS options parsing

[GHC]

#12870: Allow completely disabling +RTS options parsing
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           Reporter:  nh2            |             Owner:
               Type:  feature        |            Status:  new
  request                            |
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  8.0.1
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 I'd like to have a way to completely disable the +RTS flag so that a ghc-
 compiled binary does not eat it, but keeps it in `argv`/`getArgs` instead.

 This is needed whenever you try to make a program that's supposed to pass
 on all arguments, for example something like `ccache` or
 [https://github.com/fpco/pid1 pid1]. As you can imagine, swallowing +RTS
 argument's isn't great when you want to pass them on to a Haskell program.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12870>
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