Move: Nested classes support

#KT-9027 In Progress

idea/testData/refactoring/move/kotlin/moveNestedClass/objectToTopLevel/after/B.kt

@@ -0,0 +1,20 @@
+package test
+
+object B {
+    fun test() {
+        A.X()
+
+        A.Companion.Y()
+        A.foo(A.bar)
+        //1.extFoo(1.extBar) // conflict
+
+        A.O.Y()
+        A.O.foo(A.O.bar)
+
+        with (A.O) {
+            A.Companion.Y()
+            foo(bar)
+            1.extFoo(1.extBar)
+        }
+    }
+}

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

@@ -0,0 +1,34 @@
+package test
+
+inline fun <T, R> with(receiver: T, block: T.() -> R): R = receiver.block()
+
+class A {
+    class X {
+
+    }
+
+    companion object {
+        class Y
+
+        fun foo(n: Int) {}
+
+        val bar = 1
+
+        fun Int.extFoo(n: Int) {}
+
+        val Int.extBar: Int get() = 1
+    }
+
+    object O {
+        class Y
+
+        fun foo(n: Int) {}
+
+        val bar = 1
+
+        fun Int.extFoo(n: Int) {}
+
+        val Int.extBar: Int get() = 1
+    }
+
+}

idea/testData/refactoring/move/kotlin/moveNestedClass/objectToTopLevel/after/test2/usages.java

@@ -0,0 +1,9 @@
+package test2;
+
+import test.B;
+
+class Test {
+    B foo() {
+        return B.INSTANCE;
+    }
+}

idea/testData/refactoring/move/kotlin/moveNestedClass/objectToTopLevel/after/test2/usages2.java

@@ -0,0 +1,9 @@
+package test2;
+
+import test.B;
+
+class Test {
+    B foo() {
+        return B.INSTANCE;
+    }
+}

idea/testData/refactoring/move/kotlin/moveNestedClass/objectToTopLevel/after/usages.kt

@@ -0,0 +1,8 @@
+package test2
+
+import test.A
+import test.B
+
+fun foo(): B {
+    return B
+}

idea/testData/refactoring/move/kotlin/moveNestedClass/objectToTopLevel/after/usages2.kt

@@ -0,0 +1,7 @@
+package test2
+
+import test.B
+
+fun foo(): B {
+    return B
+}

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

@@ -0,0 +1,52 @@
+package test
+
+inline fun <T, R> with(receiver: T, block: T.() -> R): R = receiver.block()
+
+class A {
+    class X {
+
+    }
+
+    companion object {
+        class Y
+
+        fun foo(n: Int) {}
+
+        val bar = 1
+
+        fun Int.extFoo(n: Int) {}
+
+        val Int.extBar: Int get() = 1
+    }
+
+    object O {
+        class Y
+
+        fun foo(n: Int) {}
+
+        val bar = 1
+
+        fun Int.extFoo(n: Int) {}
+
+        val Int.extBar: Int get() = 1
+    }
+
+    object <caret>B {
+        fun test() {
+            X()
+
+            Y()
+            foo(bar)
+            //1.extFoo(1.extBar) // conflict
+
+            O.Y()
+            O.foo(O.bar)
+
+            with (O) {
+                Y()
+                foo(bar)
+                1.extFoo(1.extBar)
+            }
+        }
+    }
+}

idea/testData/refactoring/move/kotlin/moveNestedClass/objectToTopLevel/before/test2/usages.java

@@ -0,0 +1,9 @@
+package test2;
+
+import test.A;
+
+class Test {
+    A.B foo() {
+        return A.B.INSTANCE;
+    }
+}

idea/testData/refactoring/move/kotlin/moveNestedClass/objectToTopLevel/before/test2/usages2.java

@@ -0,0 +1,9 @@
+package test2;
+
+import test.A.B;
+
+class Test {
+    B foo() {
+        return B.INSTANCE;
+    }
+}

idea/testData/refactoring/move/kotlin/moveNestedClass/objectToTopLevel/before/usages.kt

@@ -0,0 +1,7 @@
+package test2
+
+import test.A
+
+fun foo(): A.B {
+    return A.B
+}

idea/testData/refactoring/move/kotlin/moveNestedClass/objectToTopLevel/before/usages2.kt

@@ -0,0 +1,7 @@
+package test2
+
+import test.A.B
+
+fun foo(): B {
+    return B
+}

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

@@ -0,0 +1,5 @@
+{
+  "mainFile": "test.kt",
+  "type": "MOVE_KOTLIN_NESTED_CLASS",
+  "withRuntime": "true"
+}