Do not report "delegation member hides override" when hidden member is final

This situation is erroneous because OVERRIDING_FINAL_MEMBER_BY_DELEGATION is
already reported, no need to report another error

compiler/frontend/src/org/jetbrains/kotlin/resolve/checkers/DelegationChecker.kt

@@ -63,7 +63,7 @@ class DelegationChecker : SimpleDeclarationChecker {
                         DescriptorUtils.getAllOverriddenDescriptors(delegatedDescriptor).filter { it.kind.isReal }.toSet()
                 ) - DescriptorUtils.unwrapFakeOverride(delegatedToDescriptor).original
 
-        val nonAbstractReachable = reachableFromDelegated.filter { it.modality != Modality.ABSTRACT }
+        val nonAbstractReachable = reachableFromDelegated.filter { it.modality == Modality.OPEN }
 
         if (nonAbstractReachable.isNotEmpty()) {
             /*In case of MANY_IMPL_MEMBER_NOT_IMPLEMENTED error there could be several elements otherwise only one*/

compiler/testData/diagnostics/tests/delegation/clashes/finalMemberOverridden.kt

@@ -38,18 +38,18 @@ class CBarT<T> : IBarT<T> {
     override val bar: T get() = null!!
 }
 
-<!DELEGATED_MEMBER_HIDES_SUPERTYPE_OVERRIDE!><!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class Test1<!> : Final(), IFoo by CFoo()<!>
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class Test1<!> : Final(), IFoo by CFoo()
 
-<!DELEGATED_MEMBER_HIDES_SUPERTYPE_OVERRIDE!><!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class Test2<!> : Final(), IBar by CBar()<!>
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class Test2<!> : Final(), IBar by CBar()
 
-<!DELEGATED_MEMBER_HIDES_SUPERTYPE_OVERRIDE!><!OVERRIDING_FINAL_MEMBER_BY_DELEGATION, VAR_OVERRIDDEN_BY_VAL_BY_DELEGATION!>class Test3<!> : Final(), IQux by CQux()<!>
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION, VAR_OVERRIDDEN_BY_VAL_BY_DELEGATION!>class Test3<!> : Final(), IQux by CQux()
 
-<!DELEGATED_MEMBER_HIDES_SUPERTYPE_OVERRIDE!><!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class Test4<!> : Derived(), IFoo by CFoo()<!>
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class Test4<!> : Derived(), IFoo by CFoo()
 
-<!DELEGATED_MEMBER_HIDES_SUPERTYPE_OVERRIDE!><!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class Test5<!> : Derived(), IBar by CBar()<!>
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class Test5<!> : Derived(), IBar by CBar()
 
-<!DELEGATED_MEMBER_HIDES_SUPERTYPE_OVERRIDE!><!OVERRIDING_FINAL_MEMBER_BY_DELEGATION, VAR_OVERRIDDEN_BY_VAL_BY_DELEGATION!>class Test6<!> : Derived(), IQux by CQux()<!>
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION, VAR_OVERRIDDEN_BY_VAL_BY_DELEGATION!>class Test6<!> : Derived(), IQux by CQux()
 
-<!DELEGATED_MEMBER_HIDES_SUPERTYPE_OVERRIDE!><!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class Test7<!> : Final(), IBarT<Int> by CBarT<Int>()<!>
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class Test7<!> : Final(), IBarT<Int> by CBarT<Int>()
 
-<!DELEGATED_MEMBER_HIDES_SUPERTYPE_OVERRIDE!><!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class Test8<!> : Final(), IBarT<Int> by <!TYPE_MISMATCH!>CBar()<!><!>
+<!OVERRIDING_FINAL_MEMBER_BY_DELEGATION!>class Test8<!> : Final(), IBarT<Int> by <!TYPE_MISMATCH!>CBar()<!>