pull https://github.com/develar/kotlin ecma5-iter3 Make most of the tests work.

Thanks to develar.

js/js.translator/testFiles/extensionFunction/cases/extensionFunctionCalledFromFor.kt

@@ -0,0 +1,33 @@
+package foo
+
+class SimpleEnumerator {
+    private var counter = 0
+
+    fun getNext(): String {
+        counter++;
+        return counter.toString()
+    }
+
+    fun hasMoreElements(): Boolean = counter < 1
+}
+
+class SimpleEnumeratorWrapper(private val enumerator: SimpleEnumerator) {
+    val hasNext: Boolean
+        get() = enumerator.hasMoreElements()
+
+    fun next() = enumerator.getNext()
+}
+
+fun SimpleEnumerator.iterator(): SimpleEnumeratorWrapper {
+    return SimpleEnumeratorWrapper(this)
+}
+
+fun box(): Boolean {
+    var o = ""
+    val enumerator = SimpleEnumerator()
+    for (s in enumerator) {
+        o += s;
+    }
+
+    return o == "1"
+}