RFR: 8294847: Fix calculation of G1 effective scanned cards prediction [v4]

[Thomas Schatzl]

On Thu, 13 Oct 2022 05:54:07 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

>> Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Some renaming
>
> Looks good.

Thanks @kimbarrett @albertnetymk for your reviews.

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PR: https://git.openjdk.org/jdk/pull/10647