removed some warnings and reduntant code

stdlib/ktSrc/JavaUtil.kt

@@ -156,15 +156,11 @@ inline fun <T> java.lang.Iterable<T>.toList() : List<T> {
 }
 
 inline fun <T> java.util.Collection<T>.toArray() : Array<T> {
-  if (this is Array<T>)
-    return this
-  else {
-    val answer = Array<T>(this.size)
-    var idx = 0
-    for (elem in this)
-      answer[idx++] = elem
-    return answer as Array<T>
-  }
+  val answer = Array<T>(this.size)
+  var idx = 0
+  for (elem in this)
+    answer[idx++] = elem
+  return answer as Array<T>
 }
 
 

testlib/src/Test.kt

@@ -44,7 +44,7 @@ fun fails(block: fun() : Any) {
 }
 
 fun todo(block: fun(): Any) {
-  println("TODO at " + Exception().getStackTrace()?.get(1))
+  println("TODO at " + Exception().getStackTrace()?.get(1) + " for " + block)
 }
 
 /*

testlib/test/CollectionTest.kt

@@ -104,7 +104,7 @@ class CollectionTest() : TestSupport() {
 
   fun testForeach() {
     var count = 0
-    val x = data.foreach{ count += it.length }
+    data.foreach{ count += it.length }
     assertEquals(6, count)
   }