Move: Fix warning on companion used as implicit dispatch receiver

Do not report conflict if target class is a sublcass of
companion object's containing class

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

@@ -0,0 +1,19 @@
+package test
+
+open class A {
+    companion object {
+        fun Int.extFoo(n: Int) {}
+
+        val Int.extBar: Int get() = 1
+    }
+
+}
+
+class C : A() {
+    class B {
+        fun test() {
+            1.extFoo(1.extBar)
+        }
+    }
+
+}

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

@@ -0,0 +1,19 @@
+package test
+
+open class A {
+    companion object {
+        fun Int.extFoo(n: Int) {}
+
+        val Int.extBar: Int get() = 1
+    }
+
+    class <caret>B {
+        fun test() {
+            1.extFoo(1.extBar)
+        }
+    }
+}
+
+class C : A() {
+
+}

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

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