RFR: add use site null checks [v11]

[Vicente Romero]

On Fri, 16 Jan 2026 14:23:55 GMT, Vicente Romero <vromero at openjdk.org> wrote:

>> Adding use site null checks for method invocations. They are added by default but if option: `noUseSiteNullChecks` is passed, the compiler won't generate them
>
> Vicente Romero has updated the pull request incrementally with one additional commit since the last revision:
> 
>   minor change

thanks for the suggestions and comments

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PR Comment: https://git.openjdk.org/valhalla/pull/1910#issuecomment-3760368515