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

idea/testData/refactoring/pullUp/k2k/parametersInPrimaryInitializer.kt.after

@@ -0,0 +1,7 @@
+open class A(a: Int) {
+    // INFO: {"checked": "true"}
+    val n: Int = a + 1
+}
+
+class B(a: Int): A(a) {
+}