8344151: GenShen: Improve comments, clean up unnecessary changes

[earthling-amzn]

Address a few style nits from: openjdk/jdk#21273

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed (1 review required, with at least 1 Committer)

Issue

• JDK-8344151: GenShen: Improve comments, clean up unnecessary changes (Task - P4)

Reviewers

• Aleksey Shipilev (@shipilev - Committer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/shenandoah.git pull/536/head:pull/536
$ git checkout pull/536

Update a local copy of the PR:
$ git checkout pull/536
$ git pull https://git.openjdk.org/shenandoah.git pull/536/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 536

View PR using the GUI difftool:
$ git pr show -t 536

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/shenandoah/pull/536.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back wkemper! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

@earthling-amzn This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8344151: GenShen: Improve comments, clean up unnecessary changes

Reviewed-by: shade

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 1 new commit pushed to the master branch:

• 1e3b081: 8344152: GenShen: Initialize RegionData in product builds

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[mlbridge]

Webrevs

• 00: Full (3441df35)

[earthling-amzn]

/integrate

[openjdk]

@earthling-amzn This pull request has not yet been marked as ready for integration.

[earthling-amzn]

/integrate

[openjdk]

Going to push as commit efb3a05.
Since your change was applied there has been 1 commit pushed to the master branch:

• 1e3b081: 8344152: GenShen: Initialize RegionData in product builds

Your commit was automatically rebased without conflicts.

[openjdk]

@earthling-amzn Pushed as commit efb3a05.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.