[lld] r297063 - Fix -Werror build error.

[Rafael Avila de Espindola via llvm-commits]

Thanks!
Evgeniy Stepanov via llvm-commits <llvm-commits at lists.llvm.org> writes:

> Author: eugenis
> Date: Mon Mar  6 14:27:38 2017
> New Revision: 297063
>
> URL: http://llvm.org/viewvc/llvm-project?rev=297063&view=rev
> Log:
> Fix -Werror build error.
>
> tools/lld/ELF/Symbols.cpp:215:13: error: unused variable 'S'
> [-Werror,-Wunused-variable]
>   if (auto *S = dyn_cast<SharedSymbol>(this)
>
> Modified:
>     lld/trunk/ELF/Symbols.cpp
>
> Modified: lld/trunk/ELF/Symbols.cpp
> URL: http://llvm.org/viewvc/llvm-project/lld/trunk/ELF/Symbols.cpp?rev=297063&r1=297062&r2=297063&view=diff
> ==============================================================================
> --- lld/trunk/ELF/Symbols.cpp (original)
> +++ lld/trunk/ELF/Symbols.cpp Mon Mar  6 14:27:38 2017
> @@ -212,7 +212,7 @@ const OutputSection *SymbolBody::getOutp
>      return nullptr;
>    }
>  
> -  if (auto *S = dyn_cast<SharedSymbol>(this))
> +  if (isa<SharedSymbol>(this))
>      return nullptr;
>  
>    if (isa<DefinedCommon>(this)) {
>
>
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