rename fasta.Token.value --> lexeme

pkg/front_end/lib/src/fasta/scanner/recover.dart

Index: pkg/front_end/lib/src/fasta/scanner/recover.dart
diff --git a/pkg/front_end/lib/src/fasta/scanner/recover.dart b/pkg/front_end/lib/src/fasta/scanner/recover.dart
index 46639b1e29f0ac3237c882d13e0a1166616c42bd..9e069a63f30d1870184287ae50f02f2ea60c5dcc 100644
--- a/pkg/front_end/lib/src/fasta/scanner/recover.dart
+++ b/pkg/front_end/lib/src/fasta/scanner/recover.dart
@@ -83,7 +83,7 @@ Token defaultRecoveryStrategy(
       append = true;
     }
     if (prepend) {
-      codeUnits.addAll(goodTail.value.codeUnits);
+      codeUnits.addAll(goodTail.lexeme.codeUnits);
     }
     NonAsciiIdentifierToken current = first;
     while (current != errorTail) {
@@ -105,7 +105,7 @@ Token defaultRecoveryStrategy(
       }
     }
     if (append) {
-      codeUnits.addAll(next.value.codeUnits);
+      codeUnits.addAll(next.lexeme.codeUnits);
       next = next.next;
     }
     String value = new String.fromCharCodes(codeUnits);