RFR: 8334295: CTW: update modules

[Evgeny Nikitin]

On Tue, 18 Jun 2024 08:31:28 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> 1. I generated only the files for the new modules, not changing the existing ones (as they would not change);
>> 2. I've manually edited the generated headers, removing the "2017" part. I'm not a layer, but it seems reasonable as the new files' code didn't exist before 2024, despite it being a standard and template one.
>
> IIRC, there is already a precedent for regenerating and updating all the files when template file change, e.g. in ByteBuffers / VarHandles. The problem with manual intervention is that a next person that regenerates the files from the template would expect no changes in files when template did not change.

Ok, let me suggest a compromise. I modified the generator to have 2 modes - to generate a new file and to update an existing one.
Other files have been edited manually anyways (some are split in 2 parts, some have got manually added `@requires` blocks, etc.), which means that there will be no clear generation. But at least the generator became more useful and concise.

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PR Review Comment: https://git.openjdk.org/jdk/pull/19738#discussion_r1646561666