Make full_emitter parts into libraries

pkg/compiler/lib/src/js_emitter/full_emitter/container_builder.dart

 // Copyright (c) 2013, 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.
 
-part of dart2js.js_emitter.full_emitter;
+library dart2js.js_emitter.full_emitter.container_builder;
+
+import '../../constants/values.dart';
+import '../../elements/elements.dart'
+    show
+    Element,
+    Elements,
+    FunctionSignature,
+    MetadataAnnotation,
+    MethodElement;
+import '../../js/js.dart' as jsAst;
+import '../../js/js.dart' show js;
+import '../js_emitter.dart' hide Emitter, EmitterFactory;
+import '../model.dart';
+import 'emitter.dart';
 
 /// This class should morph into something that makes it easy to build
 /// JavaScript representations of libraries, class-sides, and instance-sides.
 /// Initially, it is just a placeholder for code that is moved from
 /// [CodeEmitterTask].
 class ContainerBuilder extends CodeEmitterHelper {
   void addMemberMethod(DartMethod method, ClassBuilder builder) {
     MethodElement member = method.element;
     jsAst.Name name = method.name;
     FunctionSignature parameters = member.functionSignature;
@@ skipping 154 matching lines @@
     jsAst.ArrayInitializer arrayInit =
         new jsAst.ArrayInitializer(expressions.toList());
     compiler.dumpInfoTask
         .registerElementAst(member, builder.addProperty(name, arrayInit));
   }
 
   void addMemberField(Field field, ClassBuilder builder) {
     // For now, do nothing.
   }
 }