Stop running pub get at gclient sync time and fix build bugs

mojo/public/dart/third_party/analyzer/test/file_system/test_all.dart

Index: mojo/public/dart/third_party/analyzer/test/file_system/test_all.dart
diff --git a/mojo/public/dart/third_party/analyzer/test/file_system/test_all.dart b/mojo/public/dart/third_party/analyzer/test/file_system/test_all.dart
new file mode 100644
index 0000000000000000000000000000000000000000..303df094d69348fa968193c2d42fb1d7056e3c2f
--- /dev/null
+++ b/mojo/public/dart/third_party/analyzer/test/file_system/test_all.dart
@@ -0,0 +1,23 @@
+// Copyright (c) 2014, 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 test.file_system;
+
+import 'package:unittest/unittest.dart';
+
+import '../utils.dart';
+import 'memory_file_system_test.dart' as memory_file_system_test;
+import 'physical_resource_provider_test.dart'
+    as physical_resource_provider_test;
+import 'resource_uri_resolver_test.dart' as resource_uri_resolver_test;
+
+/// Utility for manually running all tests.
+main() {
+  initializeTestEnvironment();
+  group('file_system', () {
+    memory_file_system_test.main();
+    physical_resource_provider_test.main();
+    resource_uri_resolver_test.main();
+  });
+}