mojom.dart: Allow package name != directory name

mojo/dart/packages/mojom/lib/src/utils.dart

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 library mojom.utils;
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
 import 'package:crypto/crypto.dart' as crypto;
 import 'package:logging/logging.dart' as logging;
 import 'package:path/path.dart' as path;
 
 bool isMojomDart(String path) => path.endsWith('.mojom.dart');
 bool isMojom(String path) => path.endsWith('.mojom');
 bool isDotMojoms(String path) => path.endsWith(".mojoms");
+bool isPubspecYaml(String path) => path.endsWith("pubspec.yaml");
 
 String makeAbsolute(String p) =>
     path.isAbsolute(p) ? path.normalize(p) : path.normalize(path.absolute(p));
 
 String makeRelative(String p) => path.isAbsolute(p)
     ? path.normalize(path.relative(p, from: Directory.current.path))
     : path.normalize(p);
 
 logging.Logger log;
 
@@ skipping 99 matching lines @@
   return 0;
 }
 
 /// Is any element of [haystack] a prefix of [needle]?
 bool containsPrefix(String needle, List<String> haystack) {
   if (haystack == null) return false;
   var match =
       haystack.firstWhere((p) => needle.startsWith(p), orElse: () => null);
   return match != null;
 }