<i18n dev> [9] RFR: 8008577: Use CLDR Locale Data by Default (JEP-252)

[Naoto Sato]

Hello,

Please review the proposed changes for 8008577[1], the implementation of 
the JEP-252[2]. The proposed changes are located at:

http://cr.openjdk.java.net/~naoto/8008577/webrev.00/

Here are the very high level summary of changes:

- Now the default locale provider order is CLDR,JRE,SPI.
- The CLDR data is upgraded from 21.0.1 to 27.0.0
- According the CLDR upgrade, the converter tool and the runtime are now 
capable of "alias" and "parentLocales" tags.
- Regression tests that are specific to the existing JRE locale data are 
now run specifically with "JRE,SPI" providers.

I would like the build group to review the build changes mainly with the 
CLDR changes, and i18n group for the rest.

Naoto
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[1]: https://bugs.openjdk.java.net/browse/JDK-8008577
[2]: https://bugs.openjdk.java.net/browse/JDK-8043554