Changed LinkedHashSet to Set and LinkedHashMap to Map.

sdk/lib/_internal/compiler/implementation/resolution/members.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 resolution;
 
 abstract class TreeElements {
   Element get currentElement;
   Set<Node> get superUses;
 
@@ skipping 25 matching lines @@
    */
   bool isTypeLiteral(Send node);
 
   /// Register additional dependencies required by [currentElement].
   /// For example, elements that are used by a backend.
   void registerDependency(Element element);
 }
 
 class TreeElementMapping implements TreeElements {
   final Element currentElement;
-  final Map<Spannable, Selector> selectors =
-      new LinkedHashMap<Spannable, Selector>();
-  final Map<Node, DartType> types = new LinkedHashMap<Node, DartType>();
-  final Set<Node> superUses = new LinkedHashSet<Node>();
-  final Set<Element> otherDependencies = new LinkedHashSet<Element>();
+  final Map<Spannable, Selector> selectors = new Map<Spannable, Selector>();
+  final Map<Node, DartType> types = new Map<Node, DartType>();
+  final Set<Node> superUses = new Set<Node>();
+  final Set<Element> otherDependencies = new Set<Element>();
   final Map<Node, Constant> constants = new Map<Node, Constant>();
   final int hashCode = ++hashCodeCounter;
   static int hashCodeCounter = 0;
 
   TreeElementMapping(this.currentElement);
 
   operator []=(Node node, Element element) {
     assert(invariant(node, () {
       FunctionExpression functionExpression = node.asFunctionExpression();
       if (functionExpression != null) {
@@ skipping 4478 matching lines @@
     return finishConstructorReference(visit(expression),
                                       expression, expression);
   }
 }
 
 /// Looks up [name] in [scope] and unwraps the result.
 Element lookupInScope(Compiler compiler, Node node,
                       Scope scope, SourceString name) {
   return Elements.unwrap(scope.lookup(name), compiler, node);
 }