RFR: 8370220: C2: rename methods and improve documentation around get_ctrl and idom lazy updating/forwarding of ctrl and idom via dead ctrl nodes [v7]

[Emanuel Peter]

On Mon, 20 Oct 2025 13:55:49 GMT, Christian Hagedorn <chagedorn at openjdk.org> wrote:

>> Emanuel Peter has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   renaming for Tobias
>
> Thanks a lot for following up with a documentation and renaming! Some small suggestions, otherwise, looks good!
> 
> Note: There are some build failures in GHA.

@chhagedorn Thanks for all the suggestions / comments, I think I applied them all now :)

@TobiHartmann thanks for the drive-by comment / suggestion.

@rwestrel You are somewhat familiar with this code, would you mind reviewing?

@vnkozlov You may also want to have quick look, just so you are aware of the renamings. But feel free to also review ;)

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PR Comment: https://git.openjdk.org/jdk/pull/27892#issuecomment-3425369640