Replace manual bitwise operations in `hashCode` implementations of `java.time` with `Long::hashCode`.
------------- Commit messages: - Use `Long::hashCode` Changes: https://git.openjdk.org/jdk/pull/24959/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24959&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8355391 Stats: 12 lines in 5 files changed: 0 ins; 5 del; 7 mod Patch: https://git.openjdk.org/jdk/pull/24959.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/24959/head:pull/24959 PR: https://git.openjdk.org/jdk/pull/24959
