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

editor/util/plugins/com.google.dart.java2dart/resources/ast_include.dart

 
 /**
  * Instances of the class {@code NodeList} represent a list of AST nodes that have a common parent.
  */
 class NodeList<E extends ASTNode> extends ListWrapper<E> {
   /**
    * The node that is the parent of each of the elements in the list.
    */
   ASTNode owner;
   /**
@@ skipping 11 matching lines @@
    */
   accept(ASTVisitor visitor) {
     for (E element in elements) {
       element.accept(visitor);
     }
   }
   void add(E node) {
     owner.becomeParentOf(node);
     elements.add(node);
   }
-  bool addAll(Collection<E> nodes) {
+  bool addAll(Iterable<E> nodes) {
     if (nodes != null) {
       for (E node in nodes) {
         add(node);
       }
       return true;
     }
     return false;
   }
   /**
    * Return the first token included in this node's source range.
@@ skipping 15 matching lines @@
     }
     return elements[elements.length - 1].endToken;
   }
   /**
    * Return the node that is the parent of each of the elements in the list.
    * @return the node that is the parent of each of the elements in the list
    */
   ASTNode getOwner() {
     return owner;
   }
-}
+}