One more test fix to ignore ThreadDeathEvent event from non-test threads waiting for breakpoint
------------- Commit messages: - Fixed thrdeathreq002 test Changes: https://git.openjdk.org/jdk/pull/11621/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11621&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8298514 Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod Patch: https://git.openjdk.org/jdk/pull/11621.diff Fetch: git fetch https://git.openjdk.org/jdk pull/11621/head:pull/11621 PR: https://git.openjdk.org/jdk/pull/11621
