RFR: 8325671: Shenandoah: Introduce a ShenandoahGenerationType and templatize certain marking closures with it [v2]

[Y. Srinivas Ramakrishna]

On Wed, 14 Feb 2024 00:46:44 GMT, Kelvin Nilsen <kdnilsen at openjdk.org> wrote:

>> Y. Srinivas Ramakrishna has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Missing #include of ShenandoahGenerationType (albeit satisfied transitively via other include).
>
> Thanks for these refinements.  Look good to me.

Thanks @kdnilsen !

Can I please get a review from @rkennke , @shipilev , or other _jdk Reviewer_ familiar with Shenandoah. Thanks!

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PR Comment: https://git.openjdk.org/jdk/pull/17815#issuecomment-1942959206