FIR checker: add diagnostic OVERRIDING_FINAL_MEMBER

compiler/testData/diagnostics/tests/TraitOverrideObjectMethods.fir.kt

@@ -2,5 +2,5 @@
 interface MyTrait: <!INTERFACE_WITH_SUPERCLASS!>Object<!> {
     override fun toString(): String
     public override fun finalize()
-    public override fun wait()
+    public <!OVERRIDING_FINAL_MEMBER!>override<!> fun wait()
 }

compiler/testData/diagnostics/tests/enum/kt8972_cloneNotAllowed.fir.kt

@@ -1,7 +1,7 @@
 // !WITH_NEW_INFERENCE
 enum class E : Cloneable {
     A;
-    override fun clone(): Any {
+    <!OVERRIDING_FINAL_MEMBER!>override<!> fun clone(): Any {
         return super.<!UNRESOLVED_REFERENCE!>clone<!>()
     }
 }

compiler/testData/diagnostics/tests/enum/overrideFinalEnumMethods.fir.kt

@@ -4,8 +4,8 @@ enum class E {
     override val name: String = "lol"
     override val ordinal: Int = 0
 
-    override fun compareTo(other: E) = -1
+    <!OVERRIDING_FINAL_MEMBER!>override<!> fun compareTo(other: E) = -1
 
-    override fun equals(other: Any?) = true
-    override fun hashCode() = -1
+    <!OVERRIDING_FINAL_MEMBER!>override<!> fun equals(other: Any?) = true
+    <!OVERRIDING_FINAL_MEMBER!>override<!> fun hashCode() = -1
 }

compiler/testData/diagnostics/tests/override/OverridingFinalMember.fir.kt

@@ -1,7 +0,0 @@
-open class A {
-    final fun foo() {}
-}
-
-class B : A() {
-    override fun foo() {}
-}

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

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 open class A {
     final fun foo() {}
 }

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

@@ -5,7 +5,7 @@ class Foo {
 
 class Bar : Foo() {
     override fun openFoo() {}
-    override fun finalFoo() {}
+    <!OVERRIDING_FINAL_MEMBER!>override<!> fun finalFoo() {}
 }