RFR: JDK-8225497 - Update Graal

[jesper.wilhelmsson at oracle.com]

Hi,

Please review the patch to integrate recent Graal changes into OpenJDK.
Graal tip to integrate: ea9d5c4b76a4ba95f80945970ad8489db52344ff

JBS duplicates fixed by this integration:
https://bugs.openjdk.java.net/browse/JDK-8223924
https://bugs.openjdk.java.net/browse/JDK-8221514
https://bugs.openjdk.java.net/browse/JDK-8221577
https://bugs.openjdk.java.net/browse/JDK-8224254

Bug: https://bugs.openjdk.java.net/browse/JDK-8225497
Webrev: http://cr.openjdk.java.net/~jwilhelm/8225497/webrev.00/

This integration did overwrite changes already in place in OpenJDK. The diff has been attached to the umbrella bug.

Thanks,
/Jesper