[PATCH] Refactoring llvm command line parsing and option registration.

[Chris Bieneman]

Committed a fix for Visual Studio r227385.

-Chris

> On Jan 28, 2015, at 2:00 PM, Chris Bieneman <beanz at apple.com> wrote:
> 
> I’ll put together a patch for this shortly.
> 
> -Chris
> 
> 
> REPOSITORY
>  rL LLVM
> 
> http://reviews.llvm.org/D7132
> 
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