Use shorter names for some standard properties on closures.

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.
 
 library js_backend.namer;
 
 import 'dart:collection' show HashMap;
 
 import 'package:js_runtime/shared/embedded_names.dart' show JsGetName;
 
@@ skipping 424 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*';
+  // Note: We can't shorten 'call*' in the minified namers because the catch-all
+  // formula `name + "*"` is used by mirrors.
+  String get 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'$defaultValues';
+  String get requiredParameterField => r'$requiredArgCount';
+  String get 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$';
 
   static final jsAst.Name _literalDollar = new StringBackedName(r'$');
   static final jsAst.Name _literalUnderscore = new StringBackedName('_');
   static final jsAst.Name literalPlus = new StringBackedName('+');
   static final jsAst.Name _literalDynamic = new StringBackedName("dynamic");
 
   jsAst.Name _literalAsyncPrefix;
@@ skipping 1712 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);
   }
 }