RFR: 8321808: G1: Use unsigned type for non-negative G1 flags [v2]

[Ivan Walulya]

On Tue, 12 Dec 2023 10:08:37 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Simple type update for some G1 flags.
>
> Albert Mingkun Yang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   review

Marked as reviewed by iwalulya (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/17063#pullrequestreview-1778065137