Convert `AnnotationImpl` to a record so it comes with proper `equals` and `hashCode` implementations. This also fixes the comparison for annotation-valued annotation element values.
------------- Commit messages: - 8336927: Missing equals and hashCode in java.lang.classfile.Annotation Changes: https://git.openjdk.org/jdk/pull/20291/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20291&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8336927 Stats: 43 lines in 2 files changed: 23 ins; 14 del; 6 mod Patch: https://git.openjdk.org/jdk/pull/20291.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/20291/head:pull/20291 PR: https://git.openjdk.org/jdk/pull/20291
