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/nestedClassRedeclaration/nestedClassRedeclaration.test

@@ -0,0 +1,7 @@
+{
+  "type": "MARKED_ELEMENT",
+  "mainFile": "test/test.kt",
+  "newName": "Foo",
+  "withRuntime": "true",
+  "hint": "Class 'Foo' is already declared in class 'A'"
+}