Extract Function: Add test data

idea/testData/refactoring/extractFunction/parameters/extractThis/explicitLabeledThisInMember.kt

@@ -0,0 +1,16 @@
+public open class Z {
+    val z: Int = 0
+}
+
+// NEXT_SIBLING:
+public class A(): Z() {
+    var a: Int = 1
+
+    public inner class B(): Z() {
+        var b: Int = 1
+
+        fun foo(): Int {
+            return <selection>this@A.a + this@B.b + this@A.z + this@B.z</selection>
+        }
+    }
+}