Import rasta tests.

pkg/fasta/test/rasta/malformed_const_constructor.dart

Index: pkg/fasta/test/rasta/malformed_const_constructor.dart
diff --git a/pkg/fasta/test/rasta/malformed_const_constructor.dart b/pkg/fasta/test/rasta/malformed_const_constructor.dart
new file mode 100644
index 0000000000000000000000000000000000000000..05cfa9902cacfd386a59c8725f3f5415c623b8e6
--- /dev/null
+++ b/pkg/fasta/test/rasta/malformed_const_constructor.dart
@@ -0,0 +1,15 @@
+// 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.
+
+class A {
+  const A()
+    : x = 'foo'
+    : x = 'foo'
+    ;
+}
+
+main() {
+  const A();
+  new A();
+}