git: openjdk/jdk-sandbox: json: fast path for doubles

[duke]

Changeset: af376953
Branch: json
Author:    Justin Lu <justin.lu at oracle.com>
Date:      2025-03-19 11:10:34 +0000
URL:       https://git.openjdk.org/jdk-sandbox/commit/af3769538c67ba22fb3f773db7922717fe88d27e

fast path for doubles

! src/java.base/share/classes/java/util/json/JsonNumberImpl.java
! test/jdk/java/util/json/TestJsonNumber.java