[aarch64-port-dev ] RFR: Icedtea7: Backport of 8165673

[Andrew Dinn]

Patch:
The following hotspot webrev backports the jdk8/9 JNI floating point
args patch for 8165673 to icedtea7-forest

  http://cr.openjdk.java.net/~adinn/8165673/webrev.00

The original issue is here:

  http://bugs.openjdk.java.net/browse/JDK-8165673

Note that getting the test script to work required tweaking
test/test_env.sh to recognise an aarch64 cpu and sets VM_CPU accordingly
in the test environment.

Testing:
My build successfully passes the test after (and only after) patching.

RFR:
Could someone review the patch and confirm that it is ok to push this to
the idedeta7-forest repo?

regards,


Andrew Dinn
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