in plugin/src/main/kotlin/org/jetbrains/intellij/InspectionPlugin.kt [82:86]
override fun configureForSourceSet(sourceSet: SourceSet, task: AbstractInspectionsTask) {
task.description = "Run IDEA inspections for " + sourceSet.name + " classes"
task.classpath = sourceSet.output.plus(sourceSet.compileClasspath)
task.setSourceSet(sourceSet.allSource)
}