A few more small cleanups to Float16 and its tests. -------------
Commit messages: - JDK-8368985: Small Float16 refactorings Changes: https://git.openjdk.org/jdk/pull/27587/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27587&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8368985 Stats: 20 lines in 2 files changed: 4 ins; 2 del; 14 mod Patch: https://git.openjdk.org/jdk/pull/27587.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/27587/head:pull/27587 PR: https://git.openjdk.org/jdk/pull/27587
