RFR: 8266154: mark hotspot compiler/oracle tests which ignore VM flags

[Igor Ignatyev]

Hi all,

could you please review this small and trivial patch that adds `@requires vm.flagless` to `compiler/oracle` tests that ignore VM flags?

Thanks,
-- Igor

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Commit messages:
 - update copyright year
 - 8266154

Changes: https://git.openjdk.java.net/jdk/pull/3733/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3733&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8266154
  Stats: 5 lines in 3 files changed: 3 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3733.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3733/head:pull/3733

PR: https://git.openjdk.java.net/jdk/pull/3733