First batch of changes to make analyzer package strong mode error free

pkg/analyzer/lib/dart/ast/ast.dart

 // Copyright (c) 2014, 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.
 
 /**
  * Defines the AST model. The AST (Abstract Syntax Tree) model describes the
  * syntactic (as opposed to semantic) structure of Dart code. The semantic
  * structure of the code is modeled by the
  * [element model](../element/element.dart).
  *
@@ skipping 518 matching lines @@
   /**
    * Return the first token included in this node's source range.
    */
   Token get beginToken;
 
   /**
    * Return an iterator that can be used to iterate through all the entities
    * (either AST nodes or tokens) that make up the contents of this node,
    * including doc comments but excluding other comments.
    */
-  Iterable/*<AstNode | Token>*/ get childEntities;
+  Iterable /* AstNode | Token */ get childEntities;
 
   /**
    * Return the offset of the character immediately following the last character
    * of this node's source range. This is equivalent to
    * `node.getOffset() + node.getLength()`. For a compilation unit this will be
    * equal to the length of the unit's source. For synthetic nodes this will be
    * equivalent to the node's offset (because the length is zero (0) by
    * definition).
    */
   int get end;
@@ skipping 5342 matching lines @@
  * A list of AST nodes that have a common parent.
  *
  * Clients may not extend, implement or mix-in this class.
  */
 abstract class NodeList<E extends AstNode> implements List<E> {
   /**
    * Initialize a newly created list of nodes such that all of the nodes that
    * are added to the list will have their parent set to the given [owner]. The
    * list will initially be populated with the given [elements].
    */
-  factory NodeList(AstNode owner, [List<E> elements]) = NodeListImpl;
+  factory NodeList(AstNode owner, [List<E> elements]) =>
+      new NodeListImpl<E>(owner as AstNodeImpl, elements);
 
   /**
    * Return the first token included in this node list's source range, or `null`
    * if the list is empty.
    */
   Token get beginToken;
 
   /**
    * Return the last token included in this node list's source range, or `null`
    * if the list is empty.
@@ skipping 2179 matching lines @@
   /**
    * Return the 'yield' keyword.
    */
   Token get yieldKeyword;
 
   /**
    * Return the 'yield' keyword to the given [token].
    */
   void set yieldKeyword(Token token);
 }