Port parser and scanner fixes from rasta branch.

pkg/front_end/test/fasta/rasta/issue_000035a.dart

Index: pkg/front_end/test/fasta/rasta/issue_000035a.dart
diff --git a/pkg/front_end/test/fasta/rasta/issue_000035a.dart b/pkg/front_end/test/fasta/rasta/issue_000035a.dart
new file mode 100644
index 0000000000000000000000000000000000000000..d7da04e2d1533cf9daf003329408802c1bc5eabe
--- /dev/null
+++ b/pkg/front_end/test/fasta/rasta/issue_000035a.dart
@@ -0,0 +1,5 @@
+// Copyright (c) 2017, 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.md file.
+
+class C{

C();}