RFR: 8354071: Add LintCategory property indicating whether @SuppressWarnings is supported [v2]

[Maurizio Cimadamore]

On Wed, 9 Apr 2025 15:15:10 GMT, Archie Cobbs <acobbs at openjdk.org> wrote:

>> This is split off as a sub-task of [JDK-8224228](https://bugs.openjdk.org/browse/JDK-8224228), which seeks to add `@SuppressWarnings` support for lexical features.
>> 
>> Lint warnings that are subject to suppression via `@SuppressWarnings` must be deferred until attribution, because until then we can't determine whether they are suppressed or not.
>> 
>> Whether a lint warning is subject to suppression via `@SuppressWarnings` is a function of the associated `LintCategory`, not the warning itself. For example `LintCategory.OPTIONS` is not, so an occurrence of `@SuppressWarnings("options")` is meaningless and would be ignored.
>> 
>> This information is needed in the upcoming refactoring. We can facilitate that very simply by adding a boolean property to the `LintCategory` enum.
>> 
>> In addition, this permits a small optimization to be added to `Lint.suppressionsFrom()`.
>
> Archie Cobbs has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Add "not yet" comment to TEXT_BLOCKS.

Looks good!

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Marked as reviewed by mcimadamore (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/24529#pullrequestreview-2754179462