RFR(T) 8223258: Shenandoah: SRP::process_all_roots_slow processes JvmtiExport weak oops twice

[Roman Kennke]

Ok! Thanks!

Roman


> WeakProcessor processes JvmtiExport weak oops.
> 
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8223258
> Webrev: http://cr.openjdk.java.net/~zgu/JDK-8223258/webrev.00/
> 
> Test:
>   hotspot_gc_shenandoah with -XX:+ShenandoahVerify (fastdebug and release)
> 
> Thanks,
> 
> -Zhengyu