Construct literal maps using factory constructor.

sdk/lib/_internal/compiler/implementation/compiler.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 dart2js;
 
 /**
  * If true, print a warning for each method that was resolved, but not
  * compiled.
  */
@@ skipping 1510 matching lines @@
       => interceptorsLibrary.findLocal(name);
 
   Element lookupElementIn(ScopeContainerElement container, String name) {
     Element element = container.localLookup(name);
     if (element == null) {
       throw 'Could not find $name in $container';
     }
     return element;
   }
 
+  Element lookupConstructor(ClassElement classElement, String name) {

[floitsch, 2014/04/08 12:43:13]

Is this necessary?
why?

[sra1, 2014/04/08 17:55:01]

Nope.  Old code.  Removed.

+  }
+
   bool get isMockCompilation => false;
 
   Token processAndStripComments(Token currentToken) {
     Token firstToken = currentToken;
     Token prevToken;
     while (currentToken.kind != EOF_TOKEN) {
       if (identical(currentToken.kind, COMMENT_TOKEN)) {
         Token firstCommentToken = currentToken;
         while (identical(currentToken.kind, COMMENT_TOKEN)) {
           currentToken = currentToken.next;
@@ skipping 260 matching lines @@
   static NullSink outputProvider(String name, String extension) {
     return new NullSink('$name.$extension');
   }
 }
 
 /// Information about suppressed warnings and hints for a given library.
 class SuppressionInfo {
   int warnings = 0;
   int hints = 0;
 }