[15] RFR: 8216332: Grapheme regex does not work with emoji sequences

[naoto.sato at oracle.com]

Hello,

Please review the fix to the following issue:

https://bugs.openjdk.java.net/browse/JDK-8216332

The proposed changeset is located at:

https://cr.openjdk.java.net/~naoto/8216332/webrev.00/

Before this fix, the rule GB11 (Do not break within emoji modifier 
sequences or emoji zwj sequences [1]) was only applied once, and was 
ignored thereafter for the repeated possible rule candidates. The fix is 
to simply stop resetting the GB11 mode.

Naoto

[1] https://unicode.org/reports/tr29/#GB11