Move kernel baseline tests to front_end.

pkg/front_end/test/fasta/rasta/issue_000002.dart

-// 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.
-
-import 'dart:typed_data';
-
-import 'package:expect/expect.dart';
-
-var list = [1, 2, 3];
-
-class Foo {
-  final value;
-  Foo(this.value) {}
-
-  factory Foo.fac(value) {
-    return new Foo(value);
-  }
-}
-
-main() {
-  Expect.isTrue(new Uint8List.fromList(list)[1] == 2);
-  Expect.isTrue(new Foo.fac(10).value == 10);
-}