[jdk25u] RFR: 8357396: Refactor nmethod::make_not_entrant to use Enum instead of "const char*"

[Aleksey Shipilev]

On Wed, 1 Oct 2025 18:09:06 GMT, Cesar Soares Lucas <cslucas at openjdk.org> wrote:

> Hi all,
> 
> This pull request contains a backport of commit [62fde687](https://github.com/openjdk/jdk/commit/62fde687088ce72ef33b94e73babf4bfe1395c17) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Cesar Soares Lucas on 5 Jun 2025 and was reviewed by Manuel Hässig and Aleksey Shipilev.
> 
> Thanks!

Since this a refactoring touching many files, can you please merge from current master and check that GHA is still green? I'll sponsor then.

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PR Comment: https://git.openjdk.org/jdk25u/pull/259#issuecomment-3400571999