support basic identifiers in constructors

test/common.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.
 library initialize.test.build.common;
 
 import 'package:barback/barback.dart';
 import 'package:code_transformers/src/test_harness.dart';
 import 'package:unittest/unittest.dart';
 
 testPhases(String testName, List<List<Transformer>> phases,
     Map<String, String> inputFiles, Map<String, String> expectedFiles,
     [List<String> expectedMessages]) {
   test(testName, () {
     var helper = new TestHelper(phases, inputFiles, expectedMessages)..run();
     return helper.checkAll(expectedFiles).whenComplete(() => helper.tearDown());
   });
 }
+
+// Simple mock of initialize, plus some extra annotations for fun.
+const mockInitialize = '''
+    library initialize;
+
+    abstract class Initializer<T> {}
+
+    class _ConstInit extends Initializer<dynamic> {
+      const ConstInit();
+    }
+    const _ConstInit constInit = const _ConstInit();
+
+    class DynamicInit extends Initializer<dynamic> {

[Siggi Cherem (dart-lang), 2015/01/23 17:56:28]

I think we should keep this mockInitialize as a subset of initialize.dart, so
I'd move DynamicInit somewhere else in the tests.

[jakemac, 2015/01/23 21:34:38]

Done.

+      final String _name;
+      const DynamicInit(this._name);
+    }
+
+    class _InitMethod implements Initializer<Function> {
+      const _InitMethod();
+    }
+    const _InitMethod initMethod = const _InitMethod();''';