Revert "Removing ElementList (splitting out removing NodeList into a separate CL)."

tests/html/htmlcollection_test.dart

 #library('ElementListTest');
 #import('../../pkg/unittest/unittest.dart');
 #import('../../pkg/unittest/html_config.dart');
 #import('dart:html');
 
-// Test that List<Element> implements List<T>
+// Test that ElementList implements List<T>
 main() {
   Element insertTestDiv() {
     Element element = new Element.tag('div');
     element.innerHTML = r"""
 <div id='allChecked'>
 <input type="checkbox" name="c1" value="1" checked="yes">
 <input type="checkbox" name="c2" value="2" checked="yes">
 <input type="checkbox" name="c3" value="3" checked="yes">
 <input type="checkbox" name="c4" value="4" checked="yes">
 </div>
@@ skipping 12 matching lines @@
 <div id='emptyDiv'></div>
 """;
     document.body.nodes.add(element);
     return element;
   }
 
   useHtmlConfiguration();
   test('IsList', () {
     Element root = insertTestDiv();
 
-    List<Element> eachChecked =
+    ElementList eachChecked =
         document.query('#allChecked').elements;
 
     Expect.isTrue(eachChecked is List);
 
     root.remove();
   });
   test('Every', () {
     Element root = insertTestDiv();
 
-    List<Element> eachChecked =
+    ElementList eachChecked =
         document.query('#allChecked').elements;
 
-    List<Element> someChecked =
+    ElementList someChecked =
         document.query('#someChecked').elements;
 
-    List<Element> noneChecked =
+    ElementList noneChecked =
         document.query('#noneChecked').elements;
 
     Expect.equals(4, eachChecked.length);
     Expect.equals(4, someChecked.length);
     Expect.equals(4, noneChecked.length);
 
     Expect.isTrue(eachChecked.every((x) => x.checked));
     Expect.isFalse(eachChecked.every((x) => !x.checked));
     Expect.isFalse(someChecked.every((x) => x.checked));
     Expect.isFalse(someChecked.every((x) => !x.checked));
     Expect.isFalse(noneChecked.every((x) => x.checked));
     Expect.isTrue(noneChecked.every((x) => !x.checked));
 
     root.remove();
   });
   test('Some', () {
     Element root = insertTestDiv();
 
-    List<Element> eachChecked =
+    ElementList eachChecked =
         document.query('#allChecked').elements;
 
-    List<Element> someChecked =
+    ElementList someChecked =
         document.query('#someChecked').elements;
 
-    List<Element> noneChecked =
+    ElementList noneChecked =
         document.query('#noneChecked').elements;
 
     Expect.equals(4, eachChecked.length);
     Expect.equals(4, someChecked.length);
     Expect.equals(4, noneChecked.length);
 
     Expect.isTrue(eachChecked.some((x) => x.checked));
     Expect.isFalse(eachChecked.some((x) => !x.checked));
     Expect.isTrue(someChecked.some((x) => x.checked));
     Expect.isTrue(someChecked.some((x) => !x.checked));
     Expect.isFalse(noneChecked.some((x) => x.checked));
     Expect.isTrue(noneChecked.some((x) => !x.checked));
 
     root.remove();
   });
   test('Filter', () {
     Element root = insertTestDiv();
 
-    List<Element> eachChecked =
+    ElementList eachChecked =
         document.query('#allChecked').elements;
 
-    List<Element> someChecked =
+    ElementList someChecked =
         document.query('#someChecked').elements;
 
-    List<Element> noneChecked =
+    ElementList noneChecked =
         document.query('#noneChecked').elements;
 
     Expect.equals(4, eachChecked.length);
     Expect.equals(4, someChecked.length);
     Expect.equals(4, noneChecked.length);
 
     Expect.equals(4, eachChecked.filter((x) => x.checked).length);
     Expect.equals(0, eachChecked.filter((x) => !x.checked).length);
     Expect.equals(2, someChecked.filter((x) => x.checked).length);
     Expect.equals(2, someChecked.filter((x) => !x.checked).length);
     Expect.equals(0, noneChecked.filter((x) => x.checked).length);
     Expect.equals(4, noneChecked.filter((x) => !x.checked).length);
 
     root.remove();
   });
   test('IsEmpty', () {
     Element root = insertTestDiv();
 
-    List<Element> someChecked =
+    ElementList someChecked =
         document.query('#someChecked').elements;
 
-    List<Element> emptyDiv =
+    ElementList emptyDiv =
         document.query('#emptyDiv').elements;
 
     Expect.equals(4, someChecked.length);
     Expect.equals(0, emptyDiv.length);
 
     Expect.isFalse(someChecked.isEmpty());
     Expect.isTrue(emptyDiv.isEmpty());
 
     root.remove();
   });
 
   int countWithForEach(collection, predicate) {
     int count = 0;
     collection.forEach((element) {
         if (predicate(element)) count++;
       });
     return count;
   }
 
   test('ForEach', () {
     Element root = insertTestDiv();
 
-    List<Element> eachChecked =
+    ElementList eachChecked =
         document.query('#allChecked').elements;
 
-    List<Element> someChecked =
+    ElementList someChecked =
         document.query('#someChecked').elements;
 
-    List<Element> noneChecked =
+    ElementList noneChecked =
         document.query('#noneChecked').elements;
 
     Expect.equals(4, eachChecked.length);
     Expect.equals(4, someChecked.length);
     Expect.equals(4, noneChecked.length);
 
     Expect.equals(4, countWithForEach(eachChecked, (x) => x.checked));
     Expect.equals(0, countWithForEach(eachChecked, (x) => !x.checked));
     Expect.equals(2, countWithForEach(someChecked, (x) => x.checked));
     Expect.equals(2, countWithForEach(someChecked, (x) => !x.checked));
     Expect.equals(0, countWithForEach(noneChecked, (x) => x.checked));
     Expect.equals(4, countWithForEach(noneChecked, (x) => !x.checked));
 
     root.remove();
   });
 
   int countWithForLoop(collection, predicate) {
     int count = 0;
     for (var element in collection) {
       if (predicate(element)) count++;
     }
     return count;
   }
 
   test('ForLoop', () {  // Uses iterator.
     Element root = insertTestDiv();
 
-    List<Element> eachChecked =
+    ElementList eachChecked =
         document.query('#allChecked').elements;
 
-    List<Element> someChecked =
+    ElementList someChecked =
         document.query('#someChecked').elements;
 
-    List<Element> noneChecked =
+    ElementList noneChecked =
         document.query('#noneChecked').elements;
 
     Expect.equals(4, eachChecked.length);
     Expect.equals(4, someChecked.length);
     Expect.equals(4, noneChecked.length);
 
     Expect.equals(4, countWithForLoop(eachChecked, (x) => x.checked));
     Expect.equals(0, countWithForLoop(eachChecked, (x) => !x.checked));
     Expect.equals(2, countWithForLoop(someChecked, (x) => x.checked));
     Expect.equals(2, countWithForLoop(someChecked, (x) => !x.checked));
     Expect.equals(0, countWithForLoop(noneChecked, (x) => x.checked));
     Expect.equals(4, countWithForLoop(noneChecked, (x) => !x.checked));
 
     root.remove();
   });
   test('Last', () {
     Element root = insertTestDiv();
 
-    List<Element> someChecked =
+    ElementList someChecked =
         document.query('#someChecked').elements;
 
     Expect.equals(4, someChecked.length);
 
     Expect.equals(someChecked[3], someChecked.last());
 
     root.remove();
   });
   test('IndexOf', () {
     Element root = insertTestDiv();
 
-    List<Element> someChecked =
+    ElementList someChecked =
         document.query('#someChecked').elements;
 
-    List<Element> noneChecked =
+    ElementList noneChecked =
         document.query('#noneChecked').elements;
 
     Expect.equals(4, someChecked.length);
     Expect.equals(4, noneChecked.length);
 
     Expect.equals(0, someChecked.indexOf(someChecked[0], 0));
     Expect.equals(1, someChecked.indexOf(someChecked[1], 0));
     Expect.equals(2, someChecked.indexOf(someChecked[2], 0));
     Expect.equals(3, someChecked.indexOf(someChecked[3], 0));
 
     Expect.equals(-1, someChecked.indexOf(someChecked[0], 1));
     Expect.equals(-1, someChecked.indexOf(someChecked[1], 2));
     Expect.equals(-1, someChecked.indexOf(someChecked[2], 3));
     Expect.equals(-1, someChecked.indexOf(someChecked[3], 4));
 
 
     Expect.equals(-1, someChecked.indexOf(noneChecked[0], 0));
     Expect.equals(-1, noneChecked.indexOf(someChecked[0], 0));
     Expect.equals(-1, someChecked.indexOf(noneChecked[1], 0));
     Expect.equals(-1, noneChecked.indexOf(someChecked[1], 0));
 
     root.remove();
   });
   test('LastIndexOf', () {
     Element root = insertTestDiv();
 
-    List<Element> someChecked =
+    ElementList someChecked =
         document.query('#someChecked').elements;
 
-    List<Element> noneChecked =
+    ElementList noneChecked =
         document.query('#noneChecked').elements;
 
     Expect.equals(4, someChecked.length);
     Expect.equals(4, noneChecked.length);
 
     Expect.equals(0, someChecked.lastIndexOf(someChecked[0], 3));
     Expect.equals(1, someChecked.lastIndexOf(someChecked[1], 3));
     Expect.equals(2, someChecked.lastIndexOf(someChecked[2], 3));
     Expect.equals(3, someChecked.lastIndexOf(someChecked[3], 3));
 
     Expect.equals(-1, someChecked.lastIndexOf(someChecked[0], -1));
     Expect.equals(-1, someChecked.lastIndexOf(someChecked[1], 0));
     Expect.equals(-1, someChecked.lastIndexOf(someChecked[2], 1));
     Expect.equals(-1, someChecked.lastIndexOf(someChecked[3], 2));
 
     Expect.equals(-1, someChecked.lastIndexOf(noneChecked[0], 3));
     Expect.equals(-1, noneChecked.lastIndexOf(someChecked[0], 3));
     Expect.equals(-1, someChecked.lastIndexOf(noneChecked[1], 3));
     Expect.equals(-1, noneChecked.lastIndexOf(someChecked[1], 3));
 
     root.remove();
   });
 }