Pull Up: Move Kotlin -> Kotlin tests to separate directory

idea/testData/refactoring/pullUp/k2k/toIndirectSuperClass.kt

@@ -0,0 +1,13 @@
+// TARGET_CLASS: A
+open class A {
+
+}
+
+open class B: A() {
+
+}
+
+class <caret>C: B() {
+    // INFO: {"checked": "true"}
+    val x: Int
+}