Don't report error on member that overrides open member from final class

#KT-14598 Fixed

compiler/testData/diagnostics/tests/override/overrideMemberFromFinalClass.kt

@@ -0,0 +1,28 @@
+class Foo {
+    <!NON_FINAL_MEMBER_IN_FINAL_CLASS!>open<!> fun openFoo() {}
+    fun finalFoo() {}
+}
+
+class Bar : <!FINAL_SUPERTYPE!>Foo<!>() {
+    override fun openFoo() {}
+    <!OVERRIDING_FINAL_MEMBER!>override<!> fun finalFoo() {}
+}
+
+
+open class A1 {
+    open fun foo() {}
+}
+
+class B1 : A1()
+class C1 : <!FINAL_SUPERTYPE!>B1<!>() {
+    override fun foo() {}
+}
+
+abstract class A2 {
+    abstract fun foo()
+}
+
+<!ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED!>class B2<!> : A2()
+class C2 : <!FINAL_SUPERTYPE!>B2<!>() {
+    override fun foo() {}
+}