[lilliput-jdk21u:lilliput] RFR: 8316687: [Lilliput/JDK21] Various cleanups

[Aleksey Shipilev]

On Thu, 21 Sep 2023 17:46:29 GMT, Roman Kennke <rkennke at openjdk.org> wrote:

> Review of upstream diff has revealed various minor issues. Let's fix them collectively.
> 
> Testing:
>  - [x] hotspot:tier1 +UCOH

Looks okay.

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Marked as reviewed by shade (Reviewer).

PR Review: https://git.openjdk.org/lilliput-jdk21u/pull/9#pullrequestreview-1638422211