Move kernel baseline tests to front_end.

pkg/front_end/test/fasta/rasta/issue_000012.dart

Index: pkg/front_end/test/fasta/rasta/issue_000012.dart
diff --git a/pkg/front_end/test/fasta/rasta/issue_000012.dart b/pkg/front_end/test/fasta/rasta/issue_000012.dart
deleted file mode 100644
index 94fdd2fea2932ea0b56cdea6793194211f858733..0000000000000000000000000000000000000000
--- a/pkg/front_end/test/fasta/rasta/issue_000012.dart
+++ /dev/null
@@ -1,17 +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.
-
-class A {
-  var field;
-}
-
-class B extends A {
-  m() {
-    super.field = 42;
-  }
-}
-
-main() {
-  new B().m();
-}