RFR: 8372023: Javac JMH failures [v2]

[Vicente Romero]

> There are two issues here, change for [1] implied that some code that was acceptable before this change would be rejected by the compiler. This had provoked an that some JMH tests started failing. This can be fixed by compiling those cases with `-source 25`. Also while taking a look at this issue I realized that the fix for [1] had a bug which it is also being fixed here.
> 
> TIA
> 
> [1] https://bugs.openjdk.org/browse/JDK-8369517

Vicente Romero 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 branch 'master' into JDK-8372023
 - removing code from JDK-8372277
 - 8372023: Javac JMH failures

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/28400/files
  - new: https://git.openjdk.org/jdk/pull/28400/files/b50a3c83..22bc2561

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28400&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28400&range=00-01

  Stats: 35444 lines in 428 files changed: 25828 ins; 7033 del; 2583 mod
  Patch: https://git.openjdk.org/jdk/pull/28400.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28400/head:pull/28400

PR: https://git.openjdk.org/jdk/pull/28400