Why bundled plugins *.jars don't automatically added to Classpath when creating new `IntellyJ Platform Plugin SDK`?
In my case, after creating new `IntellyJ Platform Plugin SDK` I'm adding Intellij-community sources cloned from GitHub. As a result, I can easily browse through the Idea source.
But when I search for implementations or usages of some Idea classes/interfaces sometimes I'm guided to a bundled plugin, which source is visible through Find dialog but not navigatable from the Project panel.
Example: searching for usages of `PomService.convertToPsi()` lead me to `XmlPropertiesReferenceContributor` which is part of `properties` bundled plugin. Only manual adding properties.jar to Classpath give me the ability to navigate through its source.