RFR: 8352994: ZGC: Fix regression introduced in JDK-8350572 [v3]

[Stefan Karlsson]

> We have seen a bunch of timeouts that all points towards the introduction of a check against VMError::is_error_reported_in_current_thread() in the ZGC verification code. I propose this workaround to first check if there's really an error reporting event that is going on by checking VMError::is_error_reported().
> 
> The underlying performance issue (or hang(?)) when calling os::current_thread_id() is being investigated as a separate bug. This fix just tries to clean up issues we see when running ZGC testing.
> 
> Thanks to @plummercj for digging into this and proposing the same workaround.
> 
> Testing: GHA is clean, I'll run this through a few tiers of our CI pipeline

Stefan Karlsson has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:

 - Merge remote-tracking branch 'upstream/master' into 8352994_is_error_reported
 - Remove test from ProblemList
 - 8352994: ZGC: Fix regression introduced in JDK-8350572

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Changes:
  - all: https://git.openjdk.org/jdk/pull/24349/files
  - new: https://git.openjdk.org/jdk/pull/24349/files/fe07a340..4720444d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24349&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24349&range=01-02

  Stats: 26029 lines in 781 files changed: 18783 ins; 5145 del; 2101 mod
  Patch: https://git.openjdk.org/jdk/pull/24349.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24349/head:pull/24349

PR: https://git.openjdk.org/jdk/pull/24349