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

#KT-14598 Fixed

idea/testData/quickfix/override/overridingOpenMethodInFinalClass.kt

@@ -1,6 +1,5 @@
 // "Make A.foo open" "false"
 // ACTION: Convert to expression body
-// ERROR: 'foo' in 'A' is final and cannot be overridden
 // ERROR: This type is final, so it cannot be inherited from
 class A() {
     open fun foo() {}