RFR: 8322757: Enable -Wparentheses warnings [v2]

[Kim Barrett]

> Please review this change to enable -Wparentheses when building HotSpot. That
> warning is enabled by -Wall (which we use). That was overridden by explicitly
> disabling it, because there were a number of places in HotSpot code that
> triggered such warnings. Those places have all been fixed. In some cases that
> made the code perhaps a little easier to read. There were also a few bugs
> found and fixed by that effort. (So -Wparentheses has found existing bugs, and
> may prevent future bugs.)
> 
> Testing: mach5 tier1 and GHA sanity checks, to provide build coverage for
> Oracle-supported platforms and community-supported platforms.

Kim Barrett 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 two additional commits since the last revision:

 - Merge branch 'master' into enable-Wparentheses
 - remove disable of -Wparentheses

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/17335/files
  - new: https://git.openjdk.org/jdk/pull/17335/files/84c6b063..5f8700a9

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17335&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17335&range=00-01

  Stats: 6914 lines in 219 files changed: 4005 ins; 1939 del; 970 mod
  Patch: https://git.openjdk.org/jdk/pull/17335.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17335/head:pull/17335

PR: https://git.openjdk.org/jdk/pull/17335