[lworld] RFR: 8374947: [lworld] ProblemList serviceability/sa/ClhsdbTestAllocationMerge.java in Xcomp mode [v4]

[Daniel D. Daugherty]

> Trivial fixes to ProblemList various tests:
> - [JDK-8374947](https://bugs.openjdk.org/browse/JDK-8374947) [lworld] ProblemList serviceability/sa/ClhsdbTestAllocationMerge.java in Xcomp mode
> - [JDK-8374949](https://bugs.openjdk.org/browse/JDK-8374949) [lworld] ProblemList com/sun/jdi/EATests.java#id0 with --enable-preview

Daniel D. Daugherty has updated the pull request incrementally with one additional commit since the last revision:

  8374951: [lworld] ProblemList misc jdk/jfr/event/oldobject tests that crash due to JDK-8374950

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

Changes:
  - all: https://git.openjdk.org/valhalla/pull/1882/files
  - new: https://git.openjdk.org/valhalla/pull/1882/files/bd35c2e7..14f05433

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=1882&range=03
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=1882&range=02-03

  Stats: 3 lines in 1 file changed: 3 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/valhalla/pull/1882.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1882/head:pull/1882

PR: https://git.openjdk.org/valhalla/pull/1882