Use packages dart_parser, dart_scanner, and compiler_util.

pkg/dart_parser/lib/dart_parser.dart

Index: pkg/dart_parser/lib/dart_parser.dart
diff --git a/pkg/dart_parser/lib/dart_parser.dart b/pkg/dart_parser/lib/dart_parser.dart
index 40df38fb7e01d9f055d4d9d32c7b808e6f9b10ba..b1b56897f31a7dc1c9bf46f55e025582ff449b6d 100644
--- a/pkg/dart_parser/lib/dart_parser.dart
+++ b/pkg/dart_parser/lib/dart_parser.dart
@@ -16,8 +16,22 @@ import 'src/parser.dart' show
 import 'src/listener.dart' show
     ParserError;
 
+export 'src/parser.dart' show
+    Parser;
+
 export 'src/listener.dart' show
-    ParserError;
+    Listener,
+    ParserError,
+    closeBraceFor;
+
+export 'src/error_kind.dart' show
+    ErrorKind;
+
+export 'src/top_level_parser.dart' show
+    TopLevelParser;
+
+export 'src/class_member_parser.dart' show
+    ClassMemberParser;
 
 List<ParserError> parse(Token tokens) {
   Listener listener = new Listener();