RFR: 8141654: Tests missing -XX:+UnlockDiagnosticVMOptions

[Kim Barrett]

Please review this fix of a couple of tests that use diagnostic
options without also providing -XX:+UnlockDiagnosticVMOptions.

CR:
8141654: Tests missing -XX:+UnlockDiagnosticVMOptions

Webrev:
8141654: Tests missing -XX:+UnlockDiagnosticVMOptions

Testing:
JPRT, local jtreg testing.