idea/testData/quickfix/implement/inPrivateCompanion.kt - third_party/github/JetBrains/kotlin - Git at Google

 // "Create subclass" "true"
 // SHOULD_BE_AVAILABLE_AFTER_EXECUTION

 class Container {
     private companion object {
         open class <caret>Base
     }
 }
	// "Create subclass" "true"
	// SHOULD_BE_AVAILABLE_AFTER_EXECUTION

	class Container {
	private companion object {
	open class <caret>Base
	}
	}