added test case for KT-2374

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

@@ -25,6 +25,10 @@ public final class ForeachTest extends AbstractExpressionTest {
         super("for/");
     }
 
+    public void TODO_testForUpTo() throws Exception {
+        fooBoxIsValue(10);
+    }
+
     public void testForIteratesOverArray() throws Exception {
         fooBoxTest();
     }

js/js.translator/testFiles/expression/for/cases/forUpTo.kt

@@ -0,0 +1,9 @@
+package foo
+
+fun box() : Int {
+    var sum = 0
+    for (i in 0.upto(5)) {
+      sum += i
+    }
+    return sum
+}

js/js.translator/testFiles/kotlin_lib.js

@@ -41,6 +41,10 @@ var kotlin = {set:function (receiver, key, value) {
         return answer;
     };
 
+    Kotlin.upto = function (from, limit, reversed) {
+        return Kotlin.$new(Kotlin.NumberRange)(from, limit - from, reversed).iterator();
+    };
+
     Kotlin.modules = {};
     Kotlin.Exceptions = {};
     Kotlin.Exception = Kotlin.$createClass();