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

pkg/analyzer_experimental/lib/src/generated/ast.dart

 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.ast;
 
 import 'dart:collection';
 import 'java_core.dart';
 import 'java_engine.dart';
 import 'error.dart';
 import 'source.dart' show LineInfo;
@@ skipping 13027 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;
   }
-}
+}