Represent Vector API payload objects (`Vector`, `VectorMask`, `VectorShuffle`) and `Float16` as value objects when preview features are enabled. This makes them more closely resemble the SIMD registers they try to model.
--------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - Merge branch 'master' of github.com:openjdk/jdk into exp/vector-value-decl - Vector value JVM support - Merge branch 'master' of github.com:openjdk/jdk into exp/vector-value-decl - Merge branch 'master' of github.com:openjdk/jdk into exp/vector-value-decl - Merge branch 'master' of github.com:openjdk/jdk into exp/vector-value-decl - Vector API can be value classes! Changes: https://git.openjdk.org/jdk/pull/32113/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=32113&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8396056 Stats: 277 lines in 62 files changed: 133 ins; 3 del; 141 mod Patch: https://git.openjdk.org/jdk/pull/32113.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/32113/head:pull/32113 PR: https://git.openjdk.org/jdk/pull/32113
