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

sdk/lib/core/list.dart

Index: sdk/lib/core/list.dart
diff --git a/sdk/lib/core/list.dart b/sdk/lib/core/list.dart
index c0f15698e0e76227942872adc9414469e5679fd1..27a857e9df442afb0bc957bb4f861fe10537009b 100644
--- a/sdk/lib/core/list.dart
+++ b/sdk/lib/core/list.dart
@@ -34,7 +34,7 @@ part of dart.core;
  *    unmodifiableList.add(499);  // throws
  *    unmodifiableList[0] = 87;  // throws.
  */
-abstract class List<E> implements Collection<E> {
+abstract class List<E> implements Iterable<E> {
   /**
    * Creates a list of the given [length].
    *
@@ -50,18 +50,6 @@ abstract class List<E> implements Collection<E> {
   external factory List.filled(int length, E fill);
 
   /**
-   * *Deprecated*: Use `new List(count)` instead.
-   */
-  @deprecated
-  factory List.fixedLength(int count, { E fill }) {
-    List<E> result = new List(count);
-    if (fill != null) {
-      for (int i = 0; i < count; i++) result[i] = fill;
-    }
-    return result;
-  }
-
-  /**
    * Creates an list with the elements of [other]. The order in
    * the list will be the order provided by the iterator of [other].
    *
@@ -201,6 +189,13 @@ abstract class List<E> implements Collection<E> {
   void insert(int index, E element);
 
   /**
+   * Removes [value] from the list. Returns true if [value] was
+   * in the list. Returns false otherwise. The method has no effect
+   * if [value] value was not in the list.
+   */
+  bool remove(Object value);
+
+  /**
    * Removes the element at position [index] from the list.
    *
    * This reduces the length of the list by one and moves all later elements
@@ -222,6 +217,20 @@ abstract class List<E> implements Collection<E> {
   E removeLast();
 
   /**
+   * Removes all elements of this list that satisfy [test].
+   *
+   * An elements [:e:] satisfies [test] if [:test(e):] is true.
+   */
+  void removeWhere(bool test(E element));
+
+  /**
+   * Removes all elements of this list that fail to satisfy [test].
+   *
+   * An elements [:e:] satisfies [test] if [:test(e):] is true.
+   */
+  void retainWhere(bool test(E element));
+
+  /**
    * Returns a new list containing the elements from [start] to [end].
    *
    * If [end] is omitted, the [length] of the list is used.