RFR: 8322815: Eliminate -Wparentheses warnings in shenandoah code [v2]

[Kim Barrett]

> 8322815: Eliminate -Wparentheses warnings in shenandoah code
> 
> Please review this change to eliminate some -Wparentheses warnings. This
> involved simply adding a few parentheses to make some implicit operator
> precedence explicit.
> 
> Testing: local (linux-x64) build with shenandoah included and ran
> hotspot:tier1 with -XX:+UseShenandoahGC.

Kim Barrett has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains two commits:

 - Merge branch 'master' into shenandoah-wparentheses
 - fix -Wparentheses warnings in shenandoah code

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Changes: https://git.openjdk.org/jdk/pull/17214/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17214&range=01
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/17214.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17214/head:pull/17214

PR: https://git.openjdk.org/jdk/pull/17214