[FIR] Implement DEFAULT_VALUE_NOT_ALLOWED_IN_OVERRIDE diagnostic

#KT-59409 Fixed

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

@@ -1,13 +0,0 @@
-open class A {
-    open fun foo(a : Int) {}
-}
-
-class C : A() {
-    override fun foo(a : Int = 1) {
-    }
-}
-
-class D : A() {
-    override fun foo(a : Int = 1) {
-    }
-}

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

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