[8u-dev] Request for approval : 8190280 [macos] Font2DTest demo started failing for Arabic range from JDK 8 u162 b01 on Mac

[Phil Race]

Bug: https://bugs.openjdk.java.net/browse/JDK-8190280
Webrev: http://cr.openjdk.java.net/~prr/8190280/
Review: 
http://mail.openjdk.java.net/pipermail/2d-dev/2017-November/008634.html

This is an 8u-specific fix .. (9-na) so not a backport request.

It will need to be fixed in 8u-dev and subsequently pulled into 8u162 
else that will
ship with the regression

-phil.