RFR: 8364925: G1: Improve program flow around incremental collection set building [v2]

[Thomas Schatzl]

On Mon, 18 Aug 2025 07:15:19 GMT, Ivan Walulya <iwalulya at openjdk.org> wrote:

>> Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   * ayang review
>
> Marked as reviewed by iwalulya (Reviewer).

Thanks @walulyai @albertnetymk for your reviews

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PR Comment: https://git.openjdk.org/jdk/pull/26659#issuecomment-3209697911