RFR: 8314830: runtime/ErrorHandling/ tests ignore external VM flags

[Mikhailo Seledtsov]

8314830: runtime/ErrorHandling/ tests ignore external VM flags

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Commit messages:
 - 8314830: runtime/ErrorHandling/ tests ignore external VM flags

Changes: https://git.openjdk.org/jdk/pull/15767/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15767&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8314830
  Stats: 48 lines in 24 files changed: 27 ins; 1 del; 20 mod
  Patch: https://git.openjdk.org/jdk/pull/15767.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15767/head:pull/15767

PR: https://git.openjdk.org/jdk/pull/15767