Implement modular compilation

tool/build_sdk.dart

Index: tool/build_sdk.dart
diff --git a/tool/build_sdk.dart b/tool/build_sdk.dart
new file mode 100644
index 0000000000000000000000000000000000000000..e2b581035c26b7d7569e85ddcd14fe20428c6776
--- /dev/null
+++ b/tool/build_sdk.dart
@@ -0,0 +1,56 @@
+#!/usr/bin/env 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 file.
+
+/// A straightforward script that builds the SDK.
+///
+/// This would be easy enough to do in a shell script, as we go through the
+/// command line interface. But being able to build from a Dart library means
+/// we can call this during code coverage to get more realistic numbers.
+
+import 'package:args/command_runner.dart' show CommandRunner;
+import 'package:dev_compiler/src/compiler/command.dart';
+
+main(List<String> arguments) {
+  var args = [
+    'compile',
+    '--unsafe-force-compile',
+    '--no-source-map',
+    '--no-summarize'
+  ];
+  args.addAll(arguments);
+  args.addAll([
+    'dart:_runtime',
+    'dart:_debugger',
+    'dart:_foreign_helper',
+    'dart:_interceptors',
+    'dart:_internal',
+    'dart:_isolate_helper',
+    'dart:_js_embedded_names',
+    'dart:_js_helper',
+    'dart:_js_mirrors',
+    'dart:_js_primitives',
+    'dart:_metadata',
+    'dart:_native_typed_data',
+    'dart:async',
+    'dart:collection',
+    'dart:convert',
+    'dart:core',
+    'dart:isolate',
+    'dart:js',
+    'dart:math',
+    'dart:mirrors',
+    'dart:typed_data',
+    'dart:indexed_db',
+    'dart:html',
+    'dart:html_common',
+    'dart:svg',
+    'dart:web_audio',
+    'dart:web_gl',
+    'dart:web_sql'
+  ]);
+  var runner = new CommandRunner('dartdevc', 'Dart Development Compiler');
+  runner.addCommand(new CompileCommand());
+  return runner.run(args);
+}