RFR: 8277372: Add getters for BOT and card table members [v4]

[Vishal Chand]

On Wed, 1 Dec 2021 11:20:12 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

>> Shall these be renamed to osa_card_shift? Something like this?
>
> Okay, `_osa_card_shift` and so on is also acceptable to me, but just `_card_shift`/`_card_size` would be fine too. We typically do not prefix members with abbreviations of class name they are in; I see now that we have that `_bot` prefix in the other class, for me the `bot` prefix not necessarily refers to the class  but to the concept of a block offset table.
> 
> Maybe just reduce the names in both cases to `_card_size`/`_card_shift`/`_log_card_<something>`? What do others think?

You mean for both blockOffsetTable and objectStartArray, all the relevant members be renamed to _card_size and so on?

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PR: https://git.openjdk.java.net/jdk/pull/6570