Fix a file/class name in the `CLDRConverter` build tool, with some clean-up for a switch statement.
------------- Commit messages: - initial commit Changes: https://git.openjdk.org/jdk/pull/18662/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=18662&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8329787 Stats: 393 lines in 4 files changed: 186 ins; 203 del; 4 mod Patch: https://git.openjdk.org/jdk/pull/18662.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/18662/head:pull/18662 PR: https://git.openjdk.org/jdk/pull/18662
