[FIR] Fix JVM mapped function callable id

compiler/testData/ir/irText/firProblems/putIfAbsent.kt

@@ -0,0 +1,9 @@
+// WITH_RUNTIME
+// FULL_JDK
+
+class Owner {
+    fun <T> foo(x: T, y: T) {
+        val map = mutableMapOf<T, T>()
+        map.putIfAbsent(x, y)
+    }
+}