Tear-off --fast-startup mode performance fix

pkg/compiler/lib/src/js_backend/namer.dart

 // Copyright (c) 2011, 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 js_backend;
 
 /**
  * Assigns JavaScript identifiers to Dart variables, class-names and members.
  *
  * Names are generated through three stages:
@@ skipping 313 matching lines @@
   final String asyncPrefix = r"$async$";
   final String staticStateHolder = r'$';
   final String getterPrefix = r'get$';
   final String lazyGetterPrefix = r'$get$';
   final String setterPrefix = r'set$';
   final String superPrefix = r'super$';
   final String metadataField = '@';
   final String callPrefix = 'call';
   final String callCatchAllName = r'call*';
   final String callNameField = r'$callName';
+  final String stubNameField = r'$stubName';
   final String reflectableField = r'$reflectable';
   final String reflectionInfoField = r'$reflectionInfo';
   final String reflectionNameField = r'$reflectionName';
   final String metadataIndexField = r'$metadataIndex';
   final String defaultValuesField = r'$defaultValues';
   final String methodsWithOptionalArgumentsField =
       r'$methodsWithOptionalArguments';
   final String deferredAction = r'$deferredAction';
 
   final String classDescriptorProperty = r'^';
@@ skipping 1710 matching lines @@
   void addSuggestion(String original, String suggestion) {
     assert(!_suggestedNames.containsKey(original));
     _suggestedNames[original] = suggestion;
   }
 
   bool hasSuggestion(String original) => _suggestedNames.containsKey(original);
   bool isSuggestion(String candidate) {
     return _suggestedNames.containsValue(candidate);
   }
 }