RFR: 8356021: Use Double::hashCode in java.util.Locale::hashCode

[Roger Riggs]

On Wed, 30 Apr 2025 18:01:08 GMT, Shaojin Wen <swen at openjdk.org> wrote:

> Similar to #24959, java.util.Locale.hashCode can also make the same improvement.
> 
> Replace manual bitwise operations in hashCode implementations of java.util.Locale with Double::hashCode.

lgltm

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Marked as reviewed by rriggs (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/24971#pullrequestreview-2809829827