RFR: [12] JDK-8209923 : Unicode 11.0.0

[Rachna Goel]

Hi,

Kindly review this enhancement to support Unicode version in JDK to 11.0.0.

Bug: https://bugs.openjdk.java.net/browse/JDK-8209923

patch: http://cr.openjdk.java.net/~rgoel/JDK-8209923/webrev.02/

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Thanks,
Rachna