RFR: 8224228: No way to locally suppress lint warnings in parser/tokenizer or preview features [v14]

[Archie Cobbs]

On Fri, 28 Feb 2025 17:27:33 GMT, Archie Cobbs <acobbs at openjdk.org> wrote:

>> This PR updates the `DeferredLintHandler` so that deferred warnings can be registered during parsing, before any `JCTree` nodes have been created, and it uses this new capability to update the `"preview"` and `"text-blocks"` Lint warnings so that they can be suppressed via `@SuppressWarnings` annotations. More details are provided in additional comments.
>> 
>> Note: This PR depends on (i.e., includes and extends) these other "cleanup" PR's:
>> * #23167
>> * #23281
>> * #23400
>> * #23730
>
> Archie Cobbs has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Refactor to map positions to declarations all within the parser.

I've take a stab at the refactoring we discussed above. Now all of the work of mapping source code positions to `JCTree` declarations is handled entirely within the parser by a new class `LexicalLintManager`. Fire away :)

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PR Comment: https://git.openjdk.org/jdk/pull/23237#issuecomment-2691190576