RFR: 8253321: java.util.Locale.LanguageRange#equals is inconsistent after calling hashCode

[Naoto Sato]

Hi,

Please review the fix to JDK-8253321. As in the issue, uninitialized (cached) hash code was incorrectly referenced in
equals() method. Removing it will correct the problem. Also, unrelated to the issue, I fixed a parameter description in
a private method.

Naoto

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Commit messages:
 - fixed noeol
 - Merge branch 'master' into JDK-8253321
 - added test case
 - Merge branch 'master' into JDK-8253321
 - 8253321: java.util.Locale.LanguageRange#equals is inconsistent after calling hashCode

Changes: https://git.openjdk.java.net/jdk/pull/260/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=260&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8253321
  Stats: 51 lines in 2 files changed: 48 ins; 1 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/260.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/260/head:pull/260

PR: https://git.openjdk.java.net/jdk/pull/260