[Patch, objcopy] Fix objcopy quadratic-time when handling --redefine-syms

[Pedro Alves]

On 04/06/2017 09:43 AM, Jiong Wang wrote:
> 
> 
> There is no regression on check-binutils after this patch, although I found
> there is actually no check on redefine symbol feature in binutils testsuite.
> 
> So I also tested this patch on several manually written testcases which were
> 
> trying to rename some symbols, they works fine.

Could those manually written tests be converted to real testsuite tests?

Thanks,
Pedro Alves