Rename: Implement Rename conflict analysis for classes. Qualify class references to resove rename conflicts when possible

#KT-8611 Fixed
 #KT-8562 Fixed
(cherry picked from commit 8989ccc)

idea/testData/refactoring/rename/clashWithNestedClass/after/test/test.kt

@@ -0,0 +1,9 @@
+package test
+
+class A {
+    class C {
+        class C {
+            val c: A.C = A.C()
+        }
+    }
+}