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

sdk/lib/_internal/compiler/implementation/lib/js_array.dart

 // Copyright (c) 2012, 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.
 
 part of _interceptors;
 
 /**
  * The interceptor class for [List]. The compiler recognizes this
  * class as an interceptor, and changes references to [:this:] to
  * actually use the receiver of the method, which is generated as an extra
@@ skipping 34 matching lines @@
   void remove(Object element) {
     checkGrowable(this, 'remove');
     for (int i = 0; i < this.length; i++) {
       if (this[i] == element) {
         JS('var', r'#.splice(#, 1)', this, i);
         return;
       }
     }
   }
 
-  void removeAll(Iterable elements) {
-    IterableMixinWorkaround.removeAllList(this, elements);
-  }
-
-  void retainAll(Iterable elements) {
-    IterableMixinWorkaround.retainAll(this, elements);
-  }
-
   void removeWhere(bool test(E element)) {
     // This could, and should, be optimized.
     IterableMixinWorkaround.removeWhereList(this, test);
   }
 
   void retainWhere(bool test(E element)) {
     IterableMixinWorkaround.removeWhereList(this,
                                             (E element) => !test(element));
   }
 
@@ skipping 190 matching lines @@
 
   bool contains(E other) {
     for (int i = 0; i < length; i++) {
       if (other == this[i]) return true;
     }
     return false;
   }
 
   bool get isEmpty => length == 0;
 
-  String toString() => Collections.collectionToString(this);
+  String toString() => ToString.iterableToString(this);
 
   List<E> toList({ bool growable: true }) =>
       new List<E>.from(this, growable: growable);
 
   Set<E> toSet() => new Set<E>.from(this);
 
   Iterator<E> get iterator => new ListIterator<E>(this);
 
   int get hashCode => Primitives.objectHashCode(this);
 
@@ skipping 29 matching lines @@
   }
 }
 
 /**
  * Dummy subclasses that allow the backend to track more precise
  * information about arrays through their type.
  */
 class JSMutableArray extends JSArray {}
 class JSFixedArray extends JSMutableArray {}
 class JSExtendableArray extends JSMutableArray {}