RFR: 8275381 G1: refactor 2 constructors of G1CardSetConfiguration [v2]

[Albert Mingkun Yang]

On Fri, 22 Oct 2021 01:09:29 GMT, Hamlin Li <mli at openjdk.org> wrote:

>> 2 constructors of G1CardSetConfiguration share some code, it's better to refacoring them to simplify the code.
>
> Hamlin Li has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Refine naming

I overlooked the `_num_buckets_in_howl` issue at that time. How about using 3 constructors? Sth like: https://github.com/openjdk/jdk/compare/master...albertnetymk:2-ctor?expand=1

PS: I didn't test it much; it's just to show the gist.

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PR: https://git.openjdk.java.net/jdk/pull/6033