fasta.Token implement analyzer.Token

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

Index: pkg/front_end/lib/src/scanner/token.dart
diff --git a/pkg/front_end/lib/src/scanner/token.dart b/pkg/front_end/lib/src/scanner/token.dart
index 1ee6255d0fb9ad1129234ce7a83a3ad50ee89936..b4138f75112f9b078fb87ad9eb5e62676e2af54b 100644
--- a/pkg/front_end/lib/src/scanner/token.dart
+++ b/pkg/front_end/lib/src/scanner/token.dart
@@ -692,8 +692,9 @@ abstract class Token implements SyntacticEntity {
   void applyDelta(int delta);
 
   /**
-   * Return a newly created token that is a copy of this token but that is not a
-   * part of any token stream.
+   * Return a newly created token that is a copy of this tokens
+   * including any [preceedingComment] tokens,
+   * but that is not a part of any token stream.
    */
   Token copy();