[jdk21u-dev] RFR: 8316464: 3 sun/tools tests ignore VM flags

[Goetz Lindenmaier]

I backport this to keep the 21u test suite up-to-date. This will simplify future test backports.

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Commit messages:
 - Backport 993951b85e016475f4cd5079ae21bd5ce1f2830c

Changes: https://git.openjdk.org/jdk21u-dev/pull/89/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=89&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8316464
  Stats: 14 lines in 3 files changed: 2 ins; 4 del; 8 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/89.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/89/head:pull/89

PR: https://git.openjdk.org/jdk21u-dev/pull/89