Include CompilationUnit begin/endToken(s) with Fasta.

pkg/analyzer/test/generated/parser_test.dart

 // Copyright (c) 2014, 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 license that can be found in the LICENSE file.
 
 library analyzer.test.generated.parser_test;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/standard_ast_factory.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
@@ skipping 13382 matching lines @@
   }
 
   void test_parseCompilationUnit_empty() {
     createParser('');
     CompilationUnit unit = parser.parseCompilationUnit2();
     expect(unit, isNotNull);
     assertNoErrors();
     expect(unit.scriptTag, isNull);
     expect(unit.directives, hasLength(0));
     expect(unit.declarations, hasLength(0));
+    expect(unit.beginToken, isNotNull);
+    expect(unit.endToken, isNotNull);
+    expect(unit.endToken.type, TokenType.EOF);
   }
 
   void test_parseCompilationUnit_exportAsPrefix() {
     createParser('export.A _export = new export.A();');
     CompilationUnit unit = parser.parseCompilationUnit2();
     expect(unit, isNotNull);
     assertNoErrors();
     expect(unit.scriptTag, isNull);
     expect(unit.directives, hasLength(0));
     expect(unit.declarations, hasLength(1));
@@ skipping 40 matching lines @@
   }
 
   void test_parseCompilationUnit_topLevelDeclaration() {
     createParser('class A {}');
     CompilationUnit unit = parser.parseCompilationUnit2();
     expect(unit, isNotNull);
     assertNoErrors();
     expect(unit.scriptTag, isNull);
     expect(unit.directives, hasLength(0));
     expect(unit.declarations, hasLength(1));
+    expect(unit.beginToken, isNotNull);
+    expect(unit.beginToken.keyword, Keyword.CLASS);
+    expect(unit.endToken, isNotNull);
+    expect(unit.endToken.type, TokenType.EOF);
   }
 
   void test_parseCompilationUnit_typedefAsPrefix() {
     createParser('typedef.A _typedef = new typedef.A();');
     CompilationUnit unit = parser.parseCompilationUnit2();
     expect(unit, isNotNull);
     assertNoErrors();
     expect(unit.scriptTag, isNull);
     expect(unit.directives, hasLength(0));
     expect(unit.declarations, hasLength(1));
@@ skipping 1297 matching lines @@
     expectCommentText(typeVariable.documentationComment, '/// Doc');
   }
 
   /**
    * Assert that the given [name] is in declaration context.
    */
   void _assertIsDeclarationName(SimpleIdentifier name) {
     expect(name.inDeclarationContext(), isTrue);
   }
 }