Removed downto cases from JS backend tests (to be restored, see KT-2586)

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

@@ -49,11 +49,7 @@ public final class RangeTest extends SingleFileTranslationTest {
         fooBoxTest();
     }
 
-    public void testIntDownTo() throws Exception {
-        fooBoxTest();
-    }
-
-    public void testUpToDownToDoNotIterate() throws Exception {
+    public void testUpToDoesNotIterate() throws Exception {
         fooBoxTest();
     }
 }

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

@@ -1,11 +0,0 @@
-package foo
-
-import java.util.ArrayList
-
-fun box() : Boolean {
-    var elems = ArrayList<Int>()
-    for (i in 4 downto 0) {
-      elems.add(i)
-    }
-    return elems[0] == 4 && elems[1] == 3 && elems[2] == 2 && elems[3] == 1 &&  elems[4] == 0
-}

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

@@ -6,8 +6,5 @@ fun box() : Boolean {
     for (i in 0 upto -1) {
       return false
     }
-    for (i in 0 downto 1) {
-      return false
-    }
     return true
 }