RFR:JDK-8072746:LocalDate.isEra() should return IsoEra not Era

[nadeesh tv]

Hi all,

Please review  a fix for  BugId - 
https://bugs.openjdk.java.net/browse/JDK-8072746 
<https://bugs.openjdk.java.net/browse/JDK-8072746>

Issue - LocalDate.isEra() should return IsoEra not Era

webrev - http://cr.openjdk.java.net/~ntv/8072746/webrev.02 
<http://cr.openjdk.java.net/%7Entv/8072746/webrev.01>

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Thanks and Regards,
  Nadeesh TV