dart2js: Use an abstract Name class for names in the generated JavaScript ast.

pkg/compiler/lib/src/js_backend/frequency_namer.dart

+// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file

[floitsch, 2015/06/22 17:43:44]

2015

[herhut, 2015/06/23 13:26:30]

Done.

+// 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 js_backend;
+
+class FrequencyNamer extends Namer {
+
+        FrequencyNamer(Compiler compiler) : super(compiler);

[floitsch, 2015/06/22 17:43:44]

indentation.

[herhut, 2015/06/23 13:26:30]

Done.

+
+        jsAst.Name getFreshName(String proposedName,
+                                   Set<String> usedNames,
+                                   Map<String, String> suggestedNames,
+                                   {bool sanitizeForNatives: false,
+                                   bool sanitizeForAnnotations: false}) {
+                return null;
+        }
+}