Add type arguments to constants.

sdk/lib/_internal/compiler/implementation/warnings.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 dart2js;
 
 class MessageKind {
   final String template;
   const MessageKind(this.template);
 
@@ skipping 147 matching lines @@
   static const INVALID_BREAK = const MessageKind(
       'target of break is not a statement');
 
   static const TYPE_VARIABLE_AS_CONSTRUCTOR = const MessageKind(
       'cannot use type variable as constructor');
   static const DUPLICATE_TYPE_VARIABLE_NAME = const MessageKind(
       'type variable #{typeVariableName} already declared');
   static const TYPE_VARIABLE_WITHIN_STATIC_MEMBER = const MessageKind(
       'cannot refer to type variable #{typeVariableName} '
       'within a static member');
+  static const TYPE_VARIABLE_IN_CONSTANT = const MessageKind(
+      'Error: cannot refer to type variable in constant');
 
   static const INVALID_USE_OF_SUPER = const MessageKind(
       'super not allowed here');
   static const INVALID_CASE_DEFAULT = const MessageKind(
       'default only allowed on last case of a switch');
 
   static const SWITCH_CASE_TYPES_NOT_EQUAL = const MessageKind(
       "case expressions don't all have the same type.");
   static const SWITCH_CASE_VALUE_OVERRIDES_EQUALS = const MessageKind(
       "case expression value overrides 'operator=='.");
@@ skipping 449 matching lines @@
 
 class CompileTimeConstantError extends Diagnostic {
   CompileTimeConstantError(MessageKind kind, [Map arguments = const {}])
     : super(kind, arguments);
 }
 
 class CompilationError extends Diagnostic {
   CompilationError(MessageKind kind, [Map arguments = const {}])
     : super(kind, arguments);
 }