- Change "static final" to "static const" in the lib/ directory.

lib/compiler/implementation/universe.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.
 
 class Universe {
   Map<Element, CodeBuffer> generatedCode;
   Map<Element, CodeBuffer> generatedBailoutCode;
   final Set<ClassElement> instantiatedClasses;
   final Set<SourceString> instantiatedClassInstanceFields;
   final Set<FunctionElement> staticFunctionsNeedingGetter;
@@ skipping 55 matching lines @@
 
   bool hasFieldSetter(Element member, Compiler compiler) {
     return hasMatchingSelector(fieldSetters[member.name], member, compiler);
   }
 }
 
 class SelectorKind {
   final String name;
   const SelectorKind(this.name);
 
-  static final SelectorKind GETTER = const SelectorKind('getter');
-  static final SelectorKind SETTER = const SelectorKind('setter');
-  static final SelectorKind CALL = const SelectorKind('call');
-  static final SelectorKind OPERATOR = const SelectorKind('operator');
-  static final SelectorKind INDEX = const SelectorKind('index');
+  static const SelectorKind GETTER = const SelectorKind('getter');
+  static const SelectorKind SETTER = const SelectorKind('setter');
+  static const SelectorKind CALL = const SelectorKind('call');
+  static const SelectorKind OPERATOR = const SelectorKind('operator');
+  static const SelectorKind INDEX = const SelectorKind('index');
 
   toString() => name;
 }
 
 class Selector implements Hashable {
   final SelectorKind kind;
   final SourceString name;
   final LibraryElement library; // Library is null for non-private selectors.
 
   // The numbers of arguments of the selector. Includes named arguments.
@@ skipping 298 matching lines @@
     }
 
     return false;
   }
 
   toString() {
     return 'Selector($kind, "${name.slowToString()}", '
            '$argumentCount, type=$receiverType)';
   }
 }