RFR: JDK-8301990: Separate Arguments::parse into two phases [v3]

[David Holmes]

On Tue, 14 Feb 2023 16:10:42 GMT, Justin King <jcking at openjdk.org> wrote:

>> Separate out some logic from `Arguments::parse` into a separate preceding phase, preprocessing. See JDK-8301990 and JDK-8299196 for more details.
>
> Justin King has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Rename PreprocessedImpl to PreprocessedArguments
>   
>   Signed-off-by: Justin King <jcking at google.com>

Marking this not ready again so that @kimbarrett has a chance to review the final version.

Thanks.

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Changes requested by dholmes (Reviewer).

PR: https://git.openjdk.org/jdk/pull/12458