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 Tue, 21 Oct 2025 09:42:41 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
>
> Good naming update! The update looks good to me apart from some last nits.

@chhagedorn @TobiHartmann  Would either of you be able to re-approve? I've fixed a little issue for shenandoah, and Roland approved that change. I merged with master and am currently running some last testing.

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PR Comment: https://git.openjdk.org/jdk/pull/27892#issuecomment-3450525961