git: openjdk/jdk: master: 8354300: Mark String.hash field @Stable

[Per Minborg]

Changeset: 072b8273
Branch: master
Author:    Per Minborg <pminborg at openjdk.org>
Date:      2025-04-22 15:10:26 +0000
URL:       https://git.openjdk.org/jdk/commit/072b8273a4c7bd75bce440e5f1184e2926ed0f78

8354300: Mark String.hash field @Stable

Reviewed-by: liach, shade, vlivanov

! src/java.base/share/classes/java/lang/String.java
+ test/micro/org/openjdk/bench/java/lang/StringHashCodeStatic.java