RFR(S) 8219607: Add support in Graal and AOT for hidden class

[Vladimir Kozlov]

Hi Dean,

Changes looks good.

I see that compiler/graalunit/HotspotTest.java failed in tier1 (and tier3-graal). I assume it is 8243381.

Thanks,
Vladimir K

On 4/23/20 4:48 PM, Dean Long wrote:
> https://bugs.openjdk.java.net/browse/JDK-8219607
> http://cr.openjdk.java.net/~dlong/8219607/webrev/
> 
> This change adds support for the Class.isHidden() intrinsic to Graal.
> 
> thanks,
> 
> dl