RFR: 8327997: G1: Move G1ScanClosureBase::reference_iteration_mode to subclass [v2]

[Albert Mingkun Yang]

On Thu, 14 Mar 2024 10:01:02 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Simple moving a method from super class to sub class and some documentation.
>
> Albert Mingkun Yang has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains two commits:
> 
>  - drop-comment
>  - g1-card-scan-mode

Thanks for review.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/18244#issuecomment-1997258821