RFR: 8267153: Problemlist jdk/jfr/event/gc/collection/TestG1ParallelPhases.java to remove the noise from CI

[Thomas Schatzl]

Hi,
  can I have reviews for this small change that problemlists jdk/jfr/event/gc/collection/TestG1ParallelPhases.java to remove noise from the CI.

Thanks,
  Thomas

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Commit messages:
 - Problemlist test case

Changes: https://git.openjdk.java.net/jdk/pull/4031/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4031&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8267153
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4031.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4031/head:pull/4031

PR: https://git.openjdk.java.net/jdk/pull/4031