[jdk21u-dev] RFR: 8355515: Clarify the purpose of forcePass() and forceFail() methods

[Goetz Lindenmaier]

I backport this for parity with 21.0.9-oracle.

-------------

Commit messages:
 - Backport 1a97eb429b520b7c4e625b97553c954d065c00cb

Changes: https://git.openjdk.org/jdk21u-dev/pull/1985/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1985&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8355515
  Stats: 33 lines in 1 file changed: 31 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1985.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1985/head:pull/1985

PR: https://git.openjdk.org/jdk21u-dev/pull/1985