RFR: 8370807: G1: Improve region attribute table method naming [v5]

[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 incrementally with one additional commit since the last revision:

  * add more verification before changing the attribute table

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/28038/files
  - new: https://git.openjdk.org/jdk/pull/28038/files/e946b780..e432694f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28038&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28038&range=03-04

  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 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