RFR(XS): 8210762: [lworld] hotspot test Unsafe/RangeCheck.java fails with -Xcomp -XX:+EnableValhalla

[Tobias Hartmann]

Hi,

please review the following patch:
https://bugs.openjdk.java.net/browse/JDK-8210762
http://cr.openjdk.java.net/~thartmann/8210762/webrev.00/

The load of the default oop from the java mirror has a non-constant offset which is expected to only
happen with inlining of unsafe oops (which are disabled with the failing test):
http://hg.openjdk.java.net/valhalla/valhalla/rev/b826402f953a#l9.123

Thanks,
Tobias