[lld] r280510 - Remove temoprary files.

[Rafael Espíndola via llvm-commits]

> +    // IsVolatileSize=true forces MemoryBuffer to not use mmap().
> +    return check(MemoryBuffer::getFile(Path, /*FileSize=*/-1,
> +                                       /*RequiresNullTerminator=*/false,
> +                                       /*IsVolatileSize=*/true),
> +                 "could not open " + Path);


Have you benchmarked this?

Cheers,
Rafael