git: openjdk/leyden: computed-constants: Add java.lang.Constant

[duke]

Changeset: 9ff240b5
Author:    Per Minborg <pminborg at gmail.com>
Date:      2023-12-11 15:59:19 +0000
URL:       https://git.openjdk.org/leyden/commit/9ff240b5e82210d3e36183c38733d97791da2827

Add java.lang.Constant

! src/java.base/share/classes/java/lang/ComputedConstant.java
+ src/java.base/share/classes/java/lang/Constant.java
! src/java.base/share/classes/jdk/internal/constant/AbstractComputedConstant.java
+ src/java.base/share/classes/jdk/internal/constant/ConstantUtil.java
+ src/java.base/share/classes/jdk/internal/constant/StandardConstant.java
+ test/jdk/java/lang/ComputedConstant/ConstantTest.java