Initial support for class usages replacement with ReplaceWith

idea/testData/quickfix/deprecatedSymbolUsage/classUsages/nestedClassToNestedClass.kt.after

@@ -0,0 +1,12 @@
+// "Replace with 'NewClass'" "true"
+
+class Outer {
+    @deprecated("", ReplaceWith("NewClass"))
+    class OldClass
+
+    class NewClass
+}
+
+fun foo(): Outer.NewClass? {
+    return null
+}