[FIR] Relax MULTIPLE_DEFAULTS_* to account for the K1 behavior

^KT-56442
^KT-36188

compiler/testData/diagnostics/tests/missingMultipleDefaultsOnTransitiveInheritance2.kt

@@ -0,0 +1,22 @@
+// FIR_IDENTICAL
+// ISSUE: KT-60269
+// WITH_STDLIB
+
+interface Foo {
+    fun foo(param: Int = 1)
+}
+
+interface Bar {
+    fun foo(param: Int = 2)
+}
+
+class Baz : Bar, Foo {
+    override fun foo(<!MULTIPLE_DEFAULTS_INHERITED_FROM_SUPERTYPES!>param: Int<!>) {
+        println(param)
+    }
+}
+
+fun main() {
+    Baz().foo()
+    (Baz() as Foo).foo()
+}