RFR: 8272552: mark hotspot runtime/cds tests which ignore external VM flags

[Igor Ignatyev]

Hi all,

could you please review this patch that adds `@requires vm.flagless` to `runtime/cds` tests that ignore external flags?

Thanks,
-- Igor

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Commit messages:
 - 8272552

Changes: https://git.openjdk.java.net/jdk/pull/5132/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5132&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8272552
  Stats: 6 lines in 6 files changed: 6 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5132.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5132/head:pull/5132

PR: https://git.openjdk.java.net/jdk/pull/5132