For with Int#downto, Int#upto do not iterate on empty ranges.

js/js.tests/test/org/jetbrains/k2js/test/semantics/RangeTest.java

@@ -52,4 +52,8 @@ public final class RangeTest extends SingleFileTranslationTest {
     public void testIntDownTo() throws Exception {
         fooBoxTest();
     }
+
+    public void testUpToDownToDoNotIterate() throws Exception {
+        fooBoxTest();
+    }
 }

js/js.translator/testFiles/range/cases/upToDownToDoNotIterate.kt

@@ -0,0 +1,13 @@
+package foo
+
+import java.util.ArrayList
+
+fun box() : Boolean {
+    for (i in 0 upto -1) {
+      return false
+    }
+    for (i in 0 downto 1) {
+      return false
+    }
+    return true
+}