Ignore synthetic tokens when search for AstNode.

pkg/analysis_server/test/services/refactoring/extract_local_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 test.services.refactoring.extract_local;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_server/src/services/correction/status.dart';
@@ skipping 688 matching lines @@
   int get foo => 42;
 }
 main() {
   A a = new A();
   var res = a.foo;
   int b = 1 + res; // marker
 }
 ''');
   }
 
+  test_singleExpression_hasParseError_expectedSemicolon() {
+    verifyNoTestUnitErrors = false;
+    indexTestUnit('''
+main(p) {
+  foo
+  p.bar.baz;
+}
+''');
+    _createRefactoringForString('p.bar');
+    // apply refactoring
+    return _assertSuccessfulRefactoring('''
+main(p) {
+  foo
+  var res = p.bar;
+  res.baz;
+}
+''');
+  }
+
   test_singleExpression_inExpressionBody() {
     indexTestUnit('''
 main() {
   print((x) => x.y * x.y + 1);
 }
 ''');
     _createRefactoringForString('x.y');
     // apply refactoring
     return _assertSuccessfulRefactoring('''
 main() {
@@ skipping 223 matching lines @@
     int length = search.length;
     _createRefactoring(offset, length);
   }
 
   void _createRefactoringWithSuffix(String selectionSearch, String suffix) {
     int offset = findOffset(selectionSearch + suffix);
     int length = selectionSearch.length;
     _createRefactoring(offset, length);
   }
 }