RFR: 7903300: Add test library support to jtreg plugin

[Guoxiong Li]

On Thu, 15 Sep 2022 15:51:57 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

>> Hi all,
>> 
>> Currently, when we open a jtreg test file which uses the JUnit or TestNG, the plugin can't identify the related classes of the JUnit or TestNG. So the statement such as `import org.junit.Test` is marked as red with error message `Cannot resolve symbol 'junit'`.
>> 
>> This patch adds the jtreg libraries directory to the lib path of the `Jetbrains IDEA` when opening the JUnit or TestNG test files so that the `Jetbrains IDEA` can identify the related classes.
>> 
>> Thanks for taking the time to review.
>> 
>> Best Regards,
>> -- Guoxiong
>
> Also, when updating the plugin, it is better to update the `gradle.properties` file to bump the version, and to include some notes (e.g. bug number and synopsis). This will allow upgrade to occur smoothly (and issues to be pinpointed correctly).

@mcimadamore Thanks for the review. Still waiting for a formal reviewer to review it.

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PR: https://git.openjdk.org/jtreg/pull/117