Move: Nested classes support

#KT-9027 In Progress

idea/testData/refactoring/move/kotlin/moveNestedClass/deepInnerToTopLevelWithOuterOuterThis/after/test.kt

@@ -0,0 +1,14 @@
+package test
+
+class A {
+    inner class OuterOuterY
+
+    inner class B {
+        inner class C {
+            fun test() {
+                OuterOuterY()
+                this@A.OuterOuterY()
+            }
+        }
+    }
+}

idea/testData/refactoring/move/kotlin/moveNestedClass/deepInnerToTopLevelWithOuterOuterThis/before/test.kt

@@ -0,0 +1,14 @@
+package test
+
+class A {
+    inner class OuterOuterY
+
+    inner class B {
+        inner class <caret>C {
+            fun test() {
+                OuterOuterY()
+                this@A.OuterOuterY()
+            }
+        }
+    }
+}

idea/testData/refactoring/move/kotlin/moveNestedClass/deepInnerToTopLevelWithOuterOuterThis/conflicts.txt

@@ -0,0 +1,2 @@
+Indirect outer instances won't be extracted: OuterOuterY()
+Indirect outer instances won't be extracted: this@A

idea/testData/refactoring/move/kotlin/moveNestedClass/deepInnerToTopLevelWithOuterOuterThis/deepInnerToTopLevelWithOuterOuterThis.test

@@ -0,0 +1,6 @@
+{
+  "mainFile": "test.kt",
+  "type": "MOVE_KOTLIN_NESTED_CLASS",
+  "outerInstanceParameter": "a",
+  "withRuntime": "true"
+}