RFR: 8328385: Convert java/awt/FileDialog/FileDialogReturnTest test to main [v4]

[Phil Race]

On Wed, 20 Mar 2024 18:37:45 GMT, Alexander Zuev <kizune at openjdk.org> wrote:

>> Convert test to a main method based;
>> Move test to an apropriate location;
>> Remove old files;
>
> Alexander Zuev has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove .html from the @test clause

Marked as reviewed by prr (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/18363#pullrequestreview-1956449728