git: openjdk/leyden: computed-constants: Add snippet file

[duke]

Changeset: 8daa2107
Author:    Per Minborg <pminborg at gmail.com>
Date:      2023-08-02 08:50:34 +0000
URL:       https://git.openjdk.org/leyden/commit/8daa21077f62080986d1ab9af5912502af9a0707

Add snippet file

! src/java.base/share/classes/java/lang/ComputedConstant.java
+ src/java.base/share/classes/java/lang/snippet-files/ComputedConstantSnippets.java