[jdk17u-dev] RFR: 8314144: gc/g1/ihop/TestIHOPStatic.java fails due to extra concurrent mark with -Xcomp

[Goetz Lindenmaier]

I backport this for parity with 17.0.11-oracle.

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Commit messages:
 - Backport 1925508425cf1b2d46173754077a588290253430

Changes: https://git.openjdk.org/jdk17u-dev/pull/1926/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1926&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8314144
  Stats: 3 lines in 2 files changed: 2 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1926.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1926/head:pull/1926

PR: https://git.openjdk.org/jdk17u-dev/pull/1926