track fasta parser begin/end event pairs

pkg/analyzer/test/generated/parser_fasta_test.dart

Index: pkg/analyzer/test/generated/parser_fasta_test.dart
diff --git a/pkg/analyzer/test/generated/parser_fasta_test.dart b/pkg/analyzer/test/generated/parser_fasta_test.dart
index c14ef270805c8cde6e014664a6f78e2bfbad8900..11a6b212fdc28331a807159786417aad7bdb8a36 100644
--- a/pkg/analyzer/test/generated/parser_fasta_test.dart
+++ b/pkg/analyzer/test/generated/parser_fasta_test.dart
@@ -22,6 +22,7 @@ import 'package:front_end/src/fasta/scanner/token.dart' as fasta;
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
+import 'parser_fasta_listener.dart';
 import 'parser_test.dart';
 import 'test_support.dart';
 
@@ -836,7 +837,7 @@ class ParserProxy implements analyzer.Parser {
     var astBuilder =
         new AstBuilder(null, library, member, elementStore, scope, true);
     astBuilder.parseGenericMethodComments = enableGenericMethodComments;
-    var fastaParser = new fasta.Parser(astBuilder);
+    var fastaParser = new fasta.Parser(new ForwardingTestListener(astBuilder));
     astBuilder.parser = fastaParser;
     return new ParserProxy._(startingToken, fastaParser, astBuilder);
   }