Remove Collection, Collections and clean up List/Set/Queue implementations of retain/remove.

tests/corelib/queue_test.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library queue.test;
 
 import "package:expect/expect.dart";
 import 'dart:collection';
 
 abstract class QueueTest {
@@ skipping 207 matching lines @@
     }
 
     for (int i = 1; i <= 5; i++) {
       Expect.equals(11 - i, queue.removeLast());
       testLength(35 - i, queue);
     }
 
     queue.remove(10);
     testLength(29, queue);
 
-    queue.removeAll([4, 6]);
+    queue.removeWhere((x) => x == 7);
+    testLength(26, queue);
+
+    queue.retainWhere((x) => x != 3);
     testLength(23, queue);
 
-    queue.retainAll([1, 3, 5, 7, 9, 10]);  // Remove 2 and 8.
-    testLength(17, queue);
-
-    queue.removeWhere((x) => x == 7);
-    testLength(14, queue);
-
-    queue.retainWhere((x) => x != 3);
-    testLength(11, queue);
-
-    Expect.listEquals([9, 1, 5, 9, 10, 1, 5, 9, 10, 1, 5], queue.toList());
+    Expect.listEquals(
+        [6, 8, 9, 1, 2, 4, 5, 6, 8, 9, 10, 1, 2, 4, 5, 6, 8, 9, 10, 1, 2, 4, 5],
+        queue.toList());
   }
 
   void testLarge() {
     int N = 10000;
     Set set = new Set();
 
     Queue queue = newQueue();
     Expect.isTrue(queue.isEmpty);
 
     for (int i = 0; i < N; i++) {
@@ skipping 13 matching lines @@
       Expect.equals(-i, mapped.first);
       Expect.equals(i + 1, skip1.first);
       Expect.equals(i, queue.removeFirst());
       Expect.equals(i + 1, take1.first);
       Expect.equals(-i - 1, mapped.first);
       Expect.equals(N - 1 - i, queue.last);
       Expect.equals(N - 1 - i, queue.removeLast());
     }
     Expect.equals(N - 1000, queue.length);
 
-    queue.retainAll(set);
-    Expect.equals(N - 1000, queue.length);
-
     queue.remove(N >> 1);
     Expect.equals(N - 1001, queue.length);
 
-    queue.removeAll(set);
+    queue.clear();
     Expect.equals(0, queue.length);
     Expect.isTrue(queue.isEmpty);
 
     queue.addAll(set);
     Expect.equals(N, queue.length);
     Expect.isFalse(queue.isEmpty);
 
     // Iterate.
     for (var element in queue) {
       Expect.isTrue(set.contains(element));
@@ skipping 114 matching lines @@
     }
     Expect.equals(null, entry2);
   }
 }
 
 
 main() {
   new DoubleLinkedQueueTest().testMain();
   new ListQueueTest().testMain();
 }