RFR: 8367368: Add message for verify_legal_class_modifiers for inner classes [v5]

[David Holmes]

On Thu, 11 Sep 2025 18:14:57 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> This adds the inner class name (or unnamed) to the error message for invalid inner class modifiers.
>> Testing with tier1-4.
>
> Coleen Phillimore has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Only test for message fragments - Chen's comments.

Looks fine.

I actually needed this fix yesterday when looking at a bug report that had been mislead by this error message.

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Marked as reviewed by dholmes (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/27201#pullrequestreview-3214090432