[aarch64-port-dev ] RFR: 8156731: aarch64: java/util/Arrays/Correct.java fails due to _generic_arraycopy stub routine

[Felix Yang]

Hi,

    Please review webrev:
http://cr.openjdk.java.net/~fyang/8156731/webrev.00/
    JIRA issue: https://bugs.openjdk.java.net/browse/JDK-8156731

    As shown on the JIRA issue, jtreg test case
java/util/Arrays/Correct.java fails to pass.
    After narrowing down, the issue is caused by _generic_arraycopy stub
routine.
    Address calculation in this stub is not correct as compressed oops is
not considered here.
Patch also fixed a potential defect in generate_conjoint_copy stub routine.

    Tested with jtreg hotspot and langtools.  OK to push?

Thanks,
Felix