KT-8542 Override dialog: only one class from hierarchy is shown

#KT-8542 Fixed

idea/testData/codeInsight/overrideImplement/doNotOverrideFinal.kt

@@ -0,0 +1,18 @@
+open class A {
+    fun a(){}
+    fun b(){}
+}
+
+interface I {
+    fun b()
+}
+
+abstract class B : A() {
+    open fun f(){}
+    abstract fun g()
+    fun h(){}
+}
+
+class C : B(), I {
+    <caret>
+}