Fix -Wshadow compiler warnings

[droark]

When compiling using the -Wshadow compiler flag, quite a few warnings pop up. Clean up all instances of shadowing.

[noloader]

@droark,

Sorry about the late reply here. I seem to do that to you more than you deserve.

I think we should pass on this at the moment. I think prefixing parameters with _ adds more diversity, and I think we should strive for consistency and not diversity. I think the way to proceed is to prefix the struct or class member with m_. The library seems to favor that style the most.

Maybe a patch that applies the m_ style to all classes and structs would benefit the library the most at this point. I believe it would add the most consistency, and avoid the shadow warnings.

[droark]

@noloader - No worries. I'll look into it when I get a chance. It could be awhile. For now, I'll close this out and reopen it later if necessary.

Thanks.