[lworld] RFR: 8373575: [lworld] Fix and problem list failing JDK, langtools and HotSpot tier 1 tests under --enable-preview [v6]

[Paul Hübner]

> Hi all,
> 
> Many tier 1 tests fail when running with `JTREG="JAVA_OPTIONS=--enable-preview"`. This PR does trivial fixes to test configurations and problemlists the rest of the failing tests.
> 
> This PR is necessary to complete [JDK-8371357](https://bugs.openjdk.org/browse/JDK-8371357).
> 
> Testing: tier1, with and without `--enable-preview`.

Paul Hübner has updated the pull request incrementally with two additional commits since the last revision:

 - Reviewer feedback.
 - Update problem list.

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

Changes:
  - all: https://git.openjdk.org/valhalla/pull/1793/files
  - new: https://git.openjdk.org/valhalla/pull/1793/files/7336f262..c948bff2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=valhalla&pr=1793&range=05
 - incr: https://webrevs.openjdk.org/?repo=valhalla&pr=1793&range=04-05

  Stats: 8 lines in 4 files changed: 7 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/valhalla/pull/1793.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1793/head:pull/1793

PR: https://git.openjdk.org/valhalla/pull/1793