RFR: 8329494: Serial: Merge GenMarkSweep into MarkSweep

[Guoxiong Li]

On Wed, 3 Apr 2024 09:56:42 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Hi all,
>> 
>> This patch merges the class `GenMarkSweep` into `MarkSweep`. Just simply move. It may be better to merge the class `DeadSpacer` and `Compacter` into `MarkSweep` and then rename `MarkSweep`. The `MarkSweep` will be renamed at [JDK-8329521](https://bugs.openjdk.org/browse/JDK-8329521). And the `DeadSpacer` and `Compacter` may be refactored at [JDK-8305896](https://bugs.openjdk.org/browse/JDK-8305896) and [JDK-8305898](https://bugs.openjdk.org/browse/JDK-8305898), so I don't refactor them now.
>> 
>> The tests `make test-tier1_gc` passed locally. Thanks for taking the time to review.
>> 
>> Best Regards,
>> -- Guoxiong
>
> Marked as reviewed by ayang (Reviewer).

@albertnetymk @tschatzl Thanks for the review.

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PR Comment: https://git.openjdk.org/jdk/pull/18589#issuecomment-2036116806