JS: move more test to box tests

js/js.translator/testData/box/range/intUpTo.kt

@@ -0,0 +1,18 @@
+package foo
+
+import java.util.ArrayList
+
+fun box(): String {
+    var elems = ArrayList<Int>()
+    for (i in 0.rangeTo(5)) {
+        elems.add(i)
+    }
+    if (elems[0] != 0) return "fail1: ${elems[0]}"
+    if (elems[1] != 1) return "fail2: ${elems[1]}"
+    if (elems[2] != 2) return "fail3: ${elems[2]}"
+    if (elems[3] != 3) return "fail4: ${elems[3]}"
+    if (elems[4] != 4) return "fail5: ${elems[4]}"
+    if (elems[5] != 5) return "fail6: ${elems[5]}"
+
+    return "OK"
+}