RFR: 8308286 Fix clang warnings in linux code [v4]

[Alexey Ushakov]

On Thu, 1 Jun 2023 15:01:37 GMT, Artem Semenov <asemenov at openjdk.org> wrote:

>> When using the clang compiler to build OpenJDk on Linux, we encounter various "warnings as errors".
>> They can be fixed with small changes.
>
> Artem Semenov has updated the pull request incrementally with one additional commit since the last revision:
> 
>   update

Marked as reviewed by avu (Committer).

The latest changes look good to me.

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PR Review: https://git.openjdk.org/jdk/pull/14033#pullrequestreview-1466776433
PR Comment: https://git.openjdk.org/jdk/pull/14033#issuecomment-1580043192