[PATCH] D42687: [ELF] - Support -plugin-opt=-debugger-tune=xxx option.

[George Rimar via llvm-commits]

>The gold plugin supports this option by using
>InitTargetOptionsFromCodeGenFlags/ParseCommandLineOptions. Could we do
>the same and avoid duplicating the parsing of the option?
>
>Cheers,
>Rafael

Approach looks nice. Prepared patch doing that: https://reviews.llvm.org/D42733.

George.