Defer addStubs to class instantiation time.

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 314 matching lines @@
   final String callPrefix = 'call';
   final String callCatchAllName = r'call*';
   final String callNameField = r'$callName';
   final String reflectableField = r'$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'^';
   final String requiredParameterField = r'$requiredArgCount';
 
   /// The non-minifying namer's [callPrefix] with a dollar after it.
   static const String _callPrefixDollar = r'call$';
 
   // Name of property in a class description for the native dispatch metadata.
   final String nativeSpecProperty = '%';
 
@@ skipping 73 matching lines @@
       case JsGetName.SETTER_PREFIX: return setterPrefix;
       case JsGetName.CALL_PREFIX: return callPrefix;
       case JsGetName.CALL_CATCH_ALL: return callCatchAllName;
       case JsGetName.REFLECTABLE: return reflectableField;
       case JsGetName.CLASS_DESCRIPTOR_PROPERTY:
         return classDescriptorProperty;
       case JsGetName.REQUIRED_PARAMETER_PROPERTY:
         return requiredParameterField;
       case JsGetName.DEFAULT_VALUES_PROPERTY: return defaultValuesField;
       case JsGetName.CALL_NAME_PROPERTY: return callNameField;
+      case JsGetName.DEFERRED_ACTION_PROPERTY: return deferredAction;
       default:
         compiler.reportError(
           node, MessageKind.GENERIC,
           {'text': 'Error: Namer has no name for "$name".'});
         return 'BROKEN';
     }
   }
 
   /// Disambiguated name for [constant].
   ///
@@ skipping 1329 matching lines @@
         if (!first) {
           sb.write('_');
         }
         sb.write('_');
         visit(parameter);
         first = true;
       }
     }
   }
 }