[jdk8u-dev] RFR: 8295288: Some vm_flags tests associate with a wrong BugID

[Joshua Cao]

Backport is not clean. Test header is different between JDK8 and JDK11. All changed tests passing.

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Commit messages:
 - 8295288: Some vm_flags tests associate with a wrong BugID

Changes: https://git.openjdk.org/jdk8u-dev/pull/147/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=147&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8295288
  Stats: 5 lines in 5 files changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/147.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev pull/147/head:pull/147

PR: https://git.openjdk.org/jdk8u-dev/pull/147