K2: Fix false-positive overload ambiguity after smart cast

Mostly, the change is just mirroring the same logic from K1
OverloadingConflictResolver

^KT-58524 Fixed

compiler/testData/diagnostics/tests/resolve/overloadConflicts/filteringOutOverrides.fir.kt

@@ -0,0 +1,33 @@
+// ISSUE: KT-58524
+
+interface MyGenericInterface<T> {
+    fun update(f: (T) -> T) {}
+}
+
+interface SubGenericInterface<F> : MyGenericInterface<F> {
+    override fun update(f: (F) -> F) {}
+}
+
+interface SubInterfaceInt : SubGenericInterface<Int> {
+    override fun update(f: (Int) -> Int) {}
+}
+
+fun foo1(a: MyGenericInterface<Number>) {
+    a <!UNCHECKED_CAST!>as MyGenericInterface<Int><!>
+
+    a.update { expectInt(it) }
+}
+
+fun foo2(a: MyGenericInterface<Number>) {
+    a <!UNCHECKED_CAST!>as SubGenericInterface<Int><!>
+
+    a.update { expectInt(it) }
+}
+
+fun foo3(a: MyGenericInterface<Number>) {
+    a as SubInterfaceInt
+
+    a.update { expectInt(it) }
+}
+
+fun expectInt(w: Int): Int = w

compiler/testData/diagnostics/tests/resolve/overloadConflicts/filteringOutOverrides.kt

@@ -0,0 +1,33 @@
+// ISSUE: KT-58524
+
+interface MyGenericInterface<T> {
+    fun update(f: (T) -> T) {}
+}
+
+interface SubGenericInterface<F> : MyGenericInterface<F> {
+    override fun update(f: (F) -> F) {}
+}
+
+interface SubInterfaceInt : SubGenericInterface<Int> {
+    override fun update(f: (Int) -> Int) {}
+}
+
+fun foo1(a: MyGenericInterface<Number>) {
+    a <!UNCHECKED_CAST!>as MyGenericInterface<Int><!>
+
+    <!DEBUG_INFO_SMARTCAST!>a<!>.update { expectInt(it) }
+}
+
+fun foo2(a: MyGenericInterface<Number>) {
+    a <!UNCHECKED_CAST!>as SubGenericInterface<Int><!>
+
+    <!DEBUG_INFO_SMARTCAST!>a<!>.update { expectInt(it) }
+}
+
+fun foo3(a: MyGenericInterface<Number>) {
+    a as SubInterfaceInt
+
+    <!DEBUG_INFO_SMARTCAST!>a<!>.update { expectInt(it) }
+}
+
+fun expectInt(w: Int): Int = w