Import rasta tests.

pkg/fasta/test/rasta/issue_000025.dart

Index: pkg/fasta/test/rasta/issue_000025.dart
diff --git a/pkg/fasta/test/rasta/issue_000025.dart b/pkg/fasta/test/rasta/issue_000025.dart
new file mode 100644
index 0000000000000000000000000000000000000000..543f783f50b73e34ef0bcbc9914aa06b21fe9025
--- /dev/null
+++ b/pkg/fasta/test/rasta/issue_000025.dart
@@ -0,0 +1,11 @@
+// Copyright (c) 2016, 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.
+
+get x => 42;
+set x(val) { }
+
+main() {
+  print(x);
+  print(x = 87);
+}