RFR: 8370807: G1: Improve region attribute table method naming [v3]

[Thomas Schatzl]

> Hi all,
> 
>   please review this cleanup of the region attribute registration methods.
> 
> Testing: gha
> 
> Thanks,
>   Thomas

Thomas Schatzl has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:

 - Merge branch 'master' into 8370807-pinned-region-flag-not-propagated
 - * ayang review
 - 8370807
   
   Hi all,
   
     please review this cleanup of the region attribute registration methods.
   
   Testing: gha
   
   Thanks,
     Thomas

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/28038/files
  - new: https://git.openjdk.org/jdk/pull/28038/files/818c353c..f2491bf7

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28038&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28038&range=01-02

  Stats: 3041 lines in 118 files changed: 1855 ins; 868 del; 318 mod
  Patch: https://git.openjdk.org/jdk/pull/28038.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28038/head:pull/28038

PR: https://git.openjdk.org/jdk/pull/28038