<i18n dev> [13] RFR: 8227127: Era designator not displayed correctly using the COMPAT provider

[naoto.sato at oracle.com]

Hello,

Please review the fix to the following issue:

https://bugs.openjdk.java.net/browse/JDK-8227127

The proposed changeset is located at:

https://cr.openjdk.java.net/~naoto/8227127/webrev.00/

This is a regression caused by the fix to 8039301, where era display 
names are correctly retrieved with styles. This revealed that the short 
names for Gregorian eras are missing in COMPAT locale provider. 
Providing the proper display names in its resource bundles fixes the issue.

Naoto