Big merge from experimental to bleeding edge.

tests/html/htmlcollection_test.dart

 library ElementListTest;
 import '../../pkg/unittest/lib/unittest.dart';
 import '../../pkg/unittest/lib/html_config.dart';
 import 'dart:html';
 
 // Test that List<Element> implements List<T>
 main() {
   Element insertTestDiv() {
     Element element = new Element.tag('div');
     element.innerHtml = r"""
@@ skipping 67 matching lines @@
     List<Element> someChecked =
         document.query('#someChecked').children;
 
     List<Element> noneChecked =
         document.query('#noneChecked').children;
 
     expect(eachChecked.length, 4);
     expect(someChecked.length, 4);
     expect(noneChecked.length, 4);
 
-    expect(eachChecked.some((x) => x.checked), isTrue);
-    expect(eachChecked.some((x) => !x.checked), isFalse);
-    expect(someChecked.some((x) => x.checked), isTrue);
-    expect(someChecked.some((x) => !x.checked), isTrue);
-    expect(noneChecked.some((x) => x.checked), isFalse);
-    expect(noneChecked.some((x) => !x.checked), isTrue);
+    expect(eachChecked.any((x) => x.checked), isTrue);
+    expect(eachChecked.any((x) => !x.checked), isFalse);
+    expect(someChecked.any((x) => x.checked), isTrue);
+    expect(someChecked.any((x) => !x.checked), isTrue);
+    expect(noneChecked.any((x) => x.checked), isFalse);
+    expect(noneChecked.any((x) => !x.checked), isTrue);
 
     root.remove();
   });
   test('Filter', () {
     Element root = insertTestDiv();
 
     List<Element> eachChecked =
         document.query('#allChecked').children;
 
     List<Element> someChecked =
         document.query('#someChecked').children;
 
     List<Element> noneChecked =
         document.query('#noneChecked').children;
 
     expect(eachChecked.length, 4);
     expect(someChecked.length, 4);
     expect(noneChecked.length, 4);
 
-    expect(eachChecked.filter((x) => x.checked).length, 4);
-    expect(eachChecked.filter((x) => !x.checked).length, 0);
-    expect(someChecked.filter((x) => x.checked).length, 2);
-    expect(someChecked.filter((x) => !x.checked).length, 2);
-    expect(noneChecked.filter((x) => x.checked).length, 0);
-    expect(noneChecked.filter((x) => !x.checked).length, 4);
+    expect(eachChecked.where((x) => x.checked).length, 4);
+    expect(eachChecked.where((x) => !x.checked).length, 0);
+    expect(someChecked.where((x) => x.checked).length, 2);
+    expect(someChecked.where((x) => !x.checked).length, 2);
+    expect(noneChecked.where((x) => x.checked).length, 0);
+    expect(noneChecked.where((x) => !x.checked).length, 4);
 
     root.remove();
   });
   test('IsEmpty', () {
     Element root = insertTestDiv();
 
     List<Element> someChecked =
         document.query('#someChecked').children;
 
     List<Element> emptyDiv =
@@ skipping 139 matching lines @@
     expect(someChecked.lastIndexOf(someChecked[3], 2), -1);
 
     expect(someChecked.lastIndexOf(noneChecked[0], 3), -1);
     expect(noneChecked.lastIndexOf(someChecked[0], 3), -1);
     expect(someChecked.lastIndexOf(noneChecked[1], 3), -1);
     expect(noneChecked.lastIndexOf(someChecked[1], 3), -1);
 
     root.remove();
   });
 }