[lworld] RFR: 8339481: [lworld] C2: Rename InlineTypeNode::IsInit to NotNull [v3]

[Marc Chevalier]

On Wed, 25 Jun 2025 11:51:01 GMT, Marc Chevalier <mchevalier at openjdk.org> wrote:

>> Picked the proposed name I found the most fitting. Added a comment to address the concern in the issue.
>
> Marc Chevalier has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Forgot the comments...

Thanks @TobiHartmann!

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PR Comment: https://git.openjdk.org/valhalla/pull/1491#issuecomment-3004768052