JVM_IR add test for KT-49411

compiler/testData/codegen/box/ranges/forInDownTo/kt49411.kt

@@ -0,0 +1,22 @@
+// TARGET_BACKEND: JVM
+// WITH_RUNTIME
+
+abstract class Foo<T>(@JvmField val foo: T)
+
+class Bar(foo: Int) : Foo<Int>(foo)
+
+fun box(): String {
+    var s1 = ""
+    for (i in Bar(3).foo.downTo(1)) {
+        s1 = s1 + i
+    }
+    if (s1 != "321") return "Failed: s1='$s1'"
+
+    var s2 = ""
+    for (i in 3.downTo(Bar(1).foo)) {
+        s2 = s2 + i
+    }
+    if (s2 != "321") return "Failed: s2='$s2'"
+
+    return "OK"
+}