RFR: 8305062: Refactor CardTable::resize_covered_region [v3]

[Albert Mingkun Yang]

On Tue, 18 Apr 2023 09:21:54 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Simple refactoring to make logic around cardtable cover-region more concrete, since #generations and gen-boundary is fixed for Serial/Parallel.
>> 
>> Test: tier1-6
>
> Albert Mingkun Yang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   review

Thanks for the review.

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PR Comment: https://git.openjdk.org/jdk/pull/13206#issuecomment-1519863653