Move kernel baseline tests to front_end.

pkg/front_end/test/fasta/strong_test.dart

+// Copyright (c) 2017, 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 fasta.test.compile_test;
+
+import 'dart:async' show Future;
+
+import 'package:front_end/src/fasta/testing/suite.dart';
+
+Future<FastaContext> createContext(
+    Chain suite, Map<String, String> environment) {
+  environment[ENABLE_FULL_COMPILE] = "";
+  environment[AST_KIND_INDEX] = "${AstKind.Kernel.index}";
+  environment[STRONG_MODE] = "";
+  return FastaContext.create(suite, environment);
+}
+
+main(List<String> arguments) => runMe(arguments, createContext, "testing.json");