RFR: 8277786: G1: Rename log2_card_region_per_heap_region used in G1CardSet

[Ivan Walulya]

On Wed, 24 Nov 2021 15:50:37 GMT, Ivan Walulya <iwalulya at openjdk.org> wrote:

> Hi all,
> 
> Please review this small change to  rename log2_card_region_per_heap_region to log2_card_regions_per_heap_region in order to improve readability.
> 
> //

Thanks for the reviews!

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PR: https://git.openjdk.java.net/jdk/pull/6539