K2: change logic of result type search in ILT case

Related to KT-57487, KT-57703

compiler/testData/diagnostics/tests/integerLiterals/complexMapping.fir.kt

@@ -0,0 +1,35 @@
+// WITH_STDLIB
+// FILE: First.java
+
+public class First implements Comparable<First> {
+    public static First compose(int something) {
+        return null;
+    }
+}
+
+// FILE: Second.java
+
+public class Second implements Comparable<Second> {
+    public static Second compose(String something) {
+        return null;
+    }
+}
+
+// FILE: complexMapping.kt
+
+private fun <R : Comparable<R>> range(vararg ranges: Pair<R?, R?>): Ranges<R> = null!!
+
+private abstract class Ranges<C : Comparable<C>> {
+    abstract fun <M : Comparable<M>> map(transform: (C) -> M): Ranges<M>
+}
+
+private val INF: Nothing? = null
+
+private val foo = listOf(
+    range(0 to 1) to range(INF to ""),
+    range(2 to 3) to range(INF to "", "" to INF),
+    range(4 to 5) to range("" to INF),
+    range(6 to INF) to range("" to INF)
+).map {
+    it.first.map(First::compose) to it.second.map(Second::compose)
+}