7903934: Add support for query strings to the IntelliJ plugin

[JornVernee]

This patch adds support for JTReg query strings to the IntelliJ plugin. Query strings can be used to run individual test methods in JUnit and TestNG tests, and nested test classes (@Nested) in JUnit tests. When creating a run configuration from an element in a source file, e.g. by clicking on the little green 'play' button in the margin, the plugin will automatically compute a query string to run that element (if it knows how to).

One issue I faced when implementing this, is that the IntelliJ type API PsiType does not have a way to retrieve the binary name of that type, which is required to run JUnit tests that have parameters. So, I had to manually implement this. You'll see this back in the code.

I've tested this by creating and running a variety of configurations for different test methods, accepting different parameter types, as well as running @Nested test classes.

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Progress

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Issue

• CODETOOLS-7903934: Add support for query strings to the IntelliJ plugin (Enhancement - P4)

Reviewing

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$ git checkout pull/240

Update a local copy of the PR:
$ git checkout pull/240
$ git pull https://git.openjdk.org/jtreg.git pull/240/head

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$ git pr checkout 240

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Webrevs

• 01: Full - Incremental (d9e8947a)
• 00: Full (08562497)