merge fasta.Keyword into analyzer.Keyword

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;
-
 import 'precedence.dart'
     show
         AS_INFO,
         BAD_INPUT_INFO,
         EOF_INFO,
         IS_INFO,
         KEYWORD_INFO,
         PrecedenceInfo;
 
 import 'token_constants.dart' show IDENTIFIER_TOKEN;
@@ skipping 307 matching lines @@
   }
 
   @override
   Token copyWithoutComments() => new BeginGroupToken(info, charOffset);
 }
 
 /**
  * A keyword token.
  */
 class KeywordToken extends Token implements analyzer.KeywordTokenWithComment {
-  final Keyword keyword;
+  final analyzer.Keyword keyword;
 
   KeywordToken(this.keyword, int charOffset) : super(charOffset);
 
   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 => keyword.isBuiltIn;
 
   String toString() => "KeywordToken($lexeme)";
 
   @override
   Token copyWithoutComments() => new KeywordToken(keyword, charOffset);
 
   @override
-  Keyword value() => keyword;
+  analyzer.Keyword value() => keyword;
 
   @override
   analyzer.TokenType get type => KEYWORD_INFO;
 }
 
 /**
  * A synthetic keyword token.
  */
 class SyntheticKeywordToken extends KeywordToken
     implements analyzer.SyntheticKeywordToken {
   /**
    * Initialize a newly created token to represent the given [keyword] at the
    * given [offset].
    */
-  SyntheticKeywordToken(Keyword keyword, int offset) : super(keyword, offset);
+  SyntheticKeywordToken(analyzer.Keyword keyword, int offset)
+      : super(keyword, offset);
 
   @override
   bool get isSynthetic => true;
 
   @override
   int get length => 0;
 
   @override
   Token copyWithoutComments() => new SyntheticKeywordToken(keyword, offset);
 }
@@ skipping 304 matching lines @@
       identical(value, "<=") ||
       identical(value, "<") ||
       identical(value, "&") ||
       identical(value, "^") ||
       identical(value, "|");
 }
 
 bool isTernaryOperator(String value) => identical(value, "[]=");
 
 bool isMinusOperator(String value) => identical(value, "-");