Implement modular compilation

test/samples/function_type_test.dart

Index: test/samples/function_type_test.dart
diff --git a/test/samples/function_type_test.dart b/test/samples/function_type_test.dart
deleted file mode 100644
index 188c9eb3e7d3ec67182a255309eb756e307b5eba..0000000000000000000000000000000000000000
--- a/test/samples/function_type_test.dart
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2015, 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.
-
-Function f = (int x) => x + 1;
-dynamic a = f;
-Function g = a;
-
-typedef int Foo(int x);
-Foo foo = g;
-
-void main() {
-  print(g(41));
-}