Move kernel baseline tests to front_end.

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

Index: pkg/front_end/test/fasta/rasta/external_factory_redirection.dart
diff --git a/pkg/front_end/test/fasta/rasta/external_factory_redirection.dart b/pkg/front_end/test/fasta/rasta/external_factory_redirection.dart
deleted file mode 100644
index 3563f91a3c51918024efddf28fe7359e209ad3af..0000000000000000000000000000000000000000
--- a/pkg/front_end/test/fasta/rasta/external_factory_redirection.dart
+++ /dev/null
@@ -1,9 +0,0 @@
-// 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.
-
-main() {
-  "Should redirect to LinkedHashMap constructor.";
-  new Map<Symbol, dynamic>(); // This is a patched constructor whose
-                              // implementation contains the redirection.
-}