RFR: 8274988 G1: refine G1SegmentedArrayAllocOptions and G1CardSetAllocOptions

[Albert Mingkun Yang]

On Wed, 20 Oct 2021 08:41:01 GMT, Hamlin Li <mli at openjdk.org> wrote:

> This is a follow-up of JDK-8273626. (something mentioned in Description was already done in JDK-8273626)
> Some other cleanups need to be done:
> Some fields of G1SegmentedArrayAllocOptions better be reloated to G1CardSetAllocOptions, and some fields are const, and also adds some assert.

Marked as reviewed by ayang (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/6032