Added copyToArray intrinsic method.

#KT-3352 fixed

js/js.libraries/src/core/kotlin.kt

@@ -24,3 +24,5 @@ public fun byteArray(vararg content : Byte): ByteArray          = js.noImpl
 
 public fun booleanArray(vararg content : Boolean): BooleanArray = js.noImpl
 
+library("copyToArray")
+public fun <reified T> Collection<T>.copyToArray(): Array<T> = js.noImpl

js/js.translator/testFiles/java/arrayList/cases/misc.kt

@@ -47,7 +47,7 @@ fun box(): Boolean {
     a.clear()
     assertThat(a.isEmpty(), true)
 
-    val array = list.toArray(Array<Int>(0, {it}))
+    val array = list.copyToArray()
 
     assertThat(array[0], 1)
     assertThat(array[1], 500)

js/js.translator/testFiles/java/arrayList/cases/toArray.kt

@@ -12,6 +12,6 @@ fun box(): Boolean {
     // test addAt
     list.add(1, 500)
 
-    val array = list.toArray()
+    val array = list.copyToArray()
     return array[0] == 1 && array[1] == 500 && array[2] == 2 && array[3] == 3 && JSON.stringify(list) == "[1,500,2,3]";
 }

js/js.translator/testFiles/kotlin_lib.js

@@ -492,6 +492,16 @@ String.prototype.contains = function (s) {
         }
     };
 
+    Kotlin.copyToArray = function (collection) {
+        var array = [];
+        var it = collection.iterator();
+        while (it.hasNext()) {
+            array.push(it.next());
+        }
+
+        return array;
+    };
+
 
     Kotlin.StringBuilder = Kotlin.createClass(null,
         function () {