[kernel] Rewrite method calls transformation

pkg/kernel/lib/transformations/empty.dart

Index: pkg/kernel/lib/transformations/empty.dart
diff --git a/pkg/kernel/lib/transformations/empty.dart b/pkg/kernel/lib/transformations/empty.dart
new file mode 100644
index 0000000000000000000000000000000000000000..3b84fb7da72124aefdf66a9f388acc41a9ca1bcc
--- /dev/null
+++ b/pkg/kernel/lib/transformations/empty.dart
@@ -0,0 +1,16 @@
+// 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 file.
+
+library kernel.transformations.empty;
+
+import '../ast.dart';
+import '../kernel.dart';
+import '../visitor.dart';
+
+Program transformProgram(Program program) {
+  new EmptyTransformer().visitProgram(program);
+  return program;
+}
+
+class EmptyTransformer extends Transformer {}