rename fasta.Token.value --> lexeme

pkg/front_end/lib/src/fasta/scanner/recover.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 licenset hat can be found in the LICENSE file.
 
 library fasta.scanner.recover;
 
 import 'token.dart' show StringToken, Token;
 
 import 'error_token.dart' show NonAsciiIdentifierToken, ErrorKind, ErrorToken;
 
@@ skipping 65 matching lines @@
           goodTail.charEnd == first.charOffset) {
         prepend = true;
       }
     }
     Token next = errorTail.next;
     if (next.info == Precedence.IDENTIFIER_INFO &&
         errorTail.charOffset + 1 == next.charOffset) {
       append = true;
     }
     if (prepend) {
-      codeUnits.addAll(goodTail.value.codeUnits);
+      codeUnits.addAll(goodTail.lexeme.codeUnits);
     }
     NonAsciiIdentifierToken current = first;
     while (current != errorTail) {
       codeUnits.add(current.character);
       current = current.next;
     }
     codeUnits.add(errorTail.character);
     int charOffset = first.charOffset;
     if (prepend) {
       charOffset = goodTail.charOffset;
       if (beforeGoodTail == null) {
         // We're prepending the first good token, so the new token will become
         // the first good token.
         good = null;
         goodTail = null;
         beforeGoodTail = null;
       } else {
         goodTail = beforeGoodTail;
       }
     }
     if (append) {
-      codeUnits.addAll(next.value.codeUnits);
+      codeUnits.addAll(next.lexeme.codeUnits);
       next = next.next;
     }
     String value = new String.fromCharCodes(codeUnits);
     return synthesizeToken(charOffset, value, Precedence.IDENTIFIER_INFO)
       ..next = next;
   }
 
   recoverExponent() {
     return synthesizeToken(errorTail.charOffset, "NaN", Precedence.DOUBLE_INFO)
       ..next = errorTail.next;
@@ skipping 116 matching lines @@
 
 String closeBraceFor(String openBrace) {
   return const {
     '(': ')',
     '[': ']',
     '{': '}',
     '<': '>',
     r'${': '}',
   }[openBrace];
 }