RFR: 8344079: Minor fixes and cleanups to compiler lint-related code [v2]

[Maurizio Cimadamore]

On Fri, 29 Nov 2024 18:46:37 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

>> Agree... one of the best ways to ensure a policy is correctly followed is to make the build fail when it's not :)
>
> Filed:
> 
> https://bugs.openjdk.org/browse/JDK-8345263
> 
> I will take a look.

Initial stab:
https://github.com/openjdk/jdk/compare/master...mcimadamore:jdk:lint_warning_strong_checks?expand=1

The idea is to mark in compiler.properties which keys are associated to which lint category, and track the association in the generated `CompilerProperties` file. Then we can just drop the additional `LintCategory` parameter from all the call sites.

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PR Review Comment: https://git.openjdk.org/jdk/pull/22056#discussion_r1866109145