move fasta.Keyword methods to analyzer.Keyword

pkg/front_end/lib/src/scanner/token.dart

 // Copyright (c) 2016, 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.
 
 /**
  * Defines the tokens that are produced by the scanner, used by the parser, and
  * referenced from the [AST structure](ast.dart).
  */
 import 'dart:collection';
 
@@ skipping 290 matching lines @@
     VOID,
     WHILE,
     WITH,
   ];
 
   /**
    * A table mapping the lexemes of keywords to the corresponding keyword.
    */
   static final Map<String, Keyword> keywords = _createKeywordMap();
 
+  final fasta.PrecedenceInfo info;
+
+  /**
+   * A flag indicating whether the keyword is "built-in" identifier.
+   */
+  final bool isBuiltIn;
+
+  /**
+   * A flag indicating whether the keyword can be used as an identifier
+   * in some situations.
+   */
+  final bool isPseudo;
+
+  /**
+   * The lexeme for the keyword.
+   */
+  final String syntax;
+
+  /**
+   * Initialize a newly created keyword.
+   */
+  const Keyword(this.syntax,
+      {this.isBuiltIn: false,
+      this.isPseudo: false,
+      this.info: fasta.KEYWORD_INFO});
+
+  /**
+   * A flag indicating whether the keyword is "built-in" identifier.
+   * This method exists for backward compatibility and will be removed.
+   * Use [isBuiltIn] instead.
+   */
+  @deprecated
+  bool get isPseudoKeyword => isBuiltIn; // TODO (danrubel): remove this
+
   /**
    * The name of the keyword type.
    */
-  String get name;
+  String get name => syntax.toUpperCase();
 
-  /**
-   * The lexeme for the keyword.
-   */
-  String get syntax;
-
-  /**
-   * A flag indicating whether the keyword is a pseudo-keyword. Pseudo keywords
-   * can be used as identifiers.
-   */
-  bool get isPseudoKeyword;
+  @override
+  String toString() => name;
 
   /**
    * Create a table mapping the lexemes of keywords to the corresponding keyword
    * and return the table that was created.
    */
   static Map<String, Keyword> _createKeywordMap() {
     LinkedHashMap<String, Keyword> result =
         new LinkedHashMap<String, Keyword>();
     for (Keyword keyword in values) {
       result[keyword.syntax] = keyword;
@@ skipping 854 matching lines @@
 
   void set precedingComments(CommentToken comment) {
     _precedingComment = comment;
     _setCommentParent(_precedingComment);
   }
 
   @override
   Token copy() =>
       new TokenWithComment(type, offset, copyComments(precedingComments));
 }