Plugin Verifier should verify against the bundled JBR

[JojOatXGME]

Describe the need of your request

When the Plugin Verifier verifies the compatibility of a plugin with a given IDE, it should also verify the compatibility of the plugin against the JBR that comes with the given IDE.

Proposed solution

Remove the -runtime-dir command line argument given to the plugin verifier.

intellij-platform-gradle-plugin/src/main/kotlin/org/jetbrains/intellij/platform/gradle/tasks/VerifyPluginTask.kt

Line 239 in 0c6867a

"-runtime-dir", runtimeDirectory.asPath.pathString,

From the README.md of the Plugin Verifier:

• -runtime-dir (-r)

  The path to the directory containing Java runtime JAR files (JDK).
  If not specified, the embedded JDK from the provided IDE parameter will be used.
  If the IDE does not contain an embedded JDK, the JAVA_HOME environment variable will be used to resolve the Java runtime.

As far as I am aware, the IDE distributions downloaded for the Plugin Verifier should usually have a bundled JBR. Also note that in contrast to all the other usages of RuntimeAware, the JBR is not actually used as a runtime in this context. The PluginVerifier uses the JBR directory to resolve classes used by the plugin, so it can verify whether the used classes, methods, and fields exist in the given IDE/JBR.

Alternatives you've considered

It might make sense to provide an explicit option to use a different JBR as the one bundled with the IDE. I am also not sure if we can really assume that all IDEs downloaded for the Plugin Verifier have a bundled JBR. So, it might also make sense to test whether they have one, and fallback to the JBR used by the other tasks.

Additional context

No response