Trivially move a few private static finals to their respective source type to avoid eagerly loading a few small classes.
------------- Commit messages: - 8333774: Avoid eagerly loading various EmptySpliterator classes Changes: https://git.openjdk.org/jdk/pull/19591/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19591&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8333774 Stats: 31 lines in 1 file changed: 12 ins; 11 del; 8 mod Patch: https://git.openjdk.org/jdk/pull/19591.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/19591/head:pull/19591 PR: https://git.openjdk.org/jdk/pull/19591