[lld] [lld][macho] Strip .__uniq. and .llvm. hashes in -order_file (PR #140670)

[via llvm-commits]

SharonXSharon wrote:

> This looks strange and we will lose the ability to order the suffixed symbols. But I am ok for the change if @ellishg is ok

This is only going to drop the "(.__uniq.xxxx)?.llvm.yyyy" suffix where "xxxx" and "yyyy" are numbers that aren't stable, and will change between one compilation to another, so we actually will be able to order the real root symbols with this patch. BP is doing the same 

https://github.com/llvm/llvm-project/pull/140670