change "deferred" keyword isPseudo --> isBuiltIn

pkg/front_end/lib/src/fasta/scanner/token.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 fasta.scanner.token;
 
 import '../../scanner/token.dart' as analyzer;
 
 import 'keyword.dart' show Keyword;
 
@@ skipping 299 matching lines @@
   PrecedenceInfo get info => keyword.info;
 
   String get lexeme => keyword.syntax;
 
   String get stringValue => keyword.syntax;
 
   bool isIdentifier() => keyword.isPseudo || keyword.isBuiltIn;
 
   bool get isPseudo => keyword.isPseudo;
 
-  bool get isBuiltInIdentifier {
-    // TODO(ahe): Remove special case for "deferred" once dartbug.com/29069 is
-    // fixed.
-    return keyword.isBuiltIn || identical("deferred", lexeme);
-  }
+  bool get isBuiltInIdentifier => keyword.isBuiltIn;
 
   String toString() => "KeywordToken($lexeme)";
 
   @override
   Token copyWithoutComments() => new KeywordToken(keyword, charOffset);
 
   @override
-  Object value() {
-    // Analyzer has different set of keyword tokens
-    // TODO(danrubel): Remove special case for "deferred" once dartbug.com/29069
-    // is fixed.
-    return isPseudo && !identical("deferred", lexeme) ? lexeme : keyword;
-  }
+  // Analyzer considers pseudo-keywords to have a different value
+  Object value() => isPseudo ? lexeme : keyword;
 
   @override
-  analyzer.TokenType get type {
-    // Analyzer considers pseudo-keywords to be identifiers
-    // TODO(danrubel): Remove special case for "deferred" once dartbug.com/29069
-    // is fixed.
-    return isPseudo && !identical("deferred", lexeme)
-        ? IDENTIFIER_INFO
-        : KEYWORD_INFO;
-  }
+  // Analyzer considers pseudo-keywords to be identifiers
+  analyzer.TokenType get type => isPseudo ? IDENTIFIER_INFO : KEYWORD_INFO;
 }
 
 /**
  * A String-valued token. Represents identifiers, string literals,
  * number literals, comments, and error tokens, using the corresponding
  * precedence info.
  */
 class StringToken extends Token implements analyzer.StringToken {
   /**
    * The length threshold above which substring tokens are computed lazily.
@@ skipping 276 matching lines @@
       identical(value, "<=") ||
       identical(value, "<") ||
       identical(value, "&") ||
       identical(value, "^") ||
       identical(value, "|");
 }
 
 bool isTernaryOperator(String value) => identical(value, "[]=");
 
 bool isMinusOperator(String value) => identical(value, "-");