rename fasta.Token.value --> lexeme

pkg/front_end/test/scanner_fasta_test.dart

 // Copyright (c) 2017, 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.
 
 import 'package:front_end/src/fasta/analyzer/token_utils.dart';
 import 'package:front_end/src/fasta/scanner/error_token.dart' as fasta;
 import 'package:front_end/src/fasta/scanner/keyword.dart' as fasta;
 import 'package:front_end/src/fasta/scanner/string_scanner.dart' as fasta;
 import 'package:front_end/src/fasta/scanner/token.dart' as fasta;
 import 'package:front_end/src/fasta/scanner/token_constants.dart' as fasta;
@@ skipping 97 matching lines @@
         expect(comment.info.kind, fasta.COMMENT_TOKEN);
         expect(comment.charOffset, greaterThanOrEqualTo(previousEnd));
         previousEnd = comment.charOffset + comment.charCount;
         comment = comment.next;
       }
       expect(token.info.kind, isNot(fasta.COMMENT_TOKEN));
       expect(token.charOffset, greaterThanOrEqualTo(previousEnd));
       previousEnd = token.charOffset + token.charCount;
 
       // Spot check for specific token/comment combinations
-      if (token.value == 'class') {
+      if (token.lexeme == 'class') {
         ++spotCheckCount;
-        expect(token.precedingComments?.value, '/// Doc comment before class');
-        expect(token.precedingComments?.next?.value, '/// second line');
-        expect(token.precedingComments?.next?.next?.value, '/// third');
+        expect(token.precedingComments?.lexeme, '/// Doc comment before class');
+        expect(token.precedingComments?.next?.lexeme, '/// second line');
+        expect(token.precedingComments?.next?.next?.lexeme, '/// third');
         expect(token.precedingComments?.next?.next?.next, isNull);
-      } else if (token.value == 'Foo2') {
+      } else if (token.lexeme == 'Foo2') {
         ++spotCheckCount;
-        expect(token.precedingComments?.value, '/** Doc comment 2 */');
-      } else if (token.value == ')') {
+        expect(token.precedingComments?.lexeme, '/** Doc comment 2 */');
+      } else if (token.lexeme == ')') {
         if (token.precedingComments != null) {
           ++spotCheckCount;
-          expect(token.precedingComments?.value,
+          expect(token.precedingComments?.lexeme,
               '/* comment before closing paren */');
           expect(token.precedingComments?.next, isNull);
         }
       }
 
       token = token.next;
     }
     expect(tokenCount, 26);
     expect(spotCheckCount, 3);
     expect(commentTokenCount, 9);
-    expect(token.precedingComments?.value, '// EOF comment');
+    expect(token.precedingComments?.lexeme, '// EOF comment');
   }
 
   @override
   @failingTest
   void test_comment_generic_method_type_assign() {
     // TODO(paulberry,ahe): Fasta doesn't support generic method comment syntax.
     super.test_comment_generic_method_type_assign();
   }
 
   @override
@@ skipping 323 matching lines @@
   final ErrorListener _listener;
 
   ToAnalyzerTokenStreamConverter_WithListener(this._listener);
 
   @override
   void reportError(
       ScannerErrorCode errorCode, int offset, List<Object> arguments) {
     _listener.errors.add(new TestError(offset, errorCode, arguments));
   }
 }