Move kernel baseline tests to front_end.

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

Index: pkg/front_end/test/fasta/rasta/foo.dart
diff --git a/pkg/front_end/test/fasta/rasta/foo.dart b/pkg/front_end/test/fasta/rasta/foo.dart
deleted file mode 100644
index 6400698bcc9b0ad76a10c07871ac8bf782e1fca0..0000000000000000000000000000000000000000
--- a/pkg/front_end/test/fasta/rasta/foo.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.
-
-library foo;
-
-foo() {
-  print("Hello, World!");
-}