Roll to pickup pool changes

packages/barback/lib/src/graph/node_status.dart

 // 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 barback.graph.node_status;
 
 /// The status of a node in barback's package graph.
 ///
 /// A node has three possible statuses: [IDLE], [MATERIALIZING], and [RUNNING].
 /// These are ordered from least dirty to most dirty; the [dirtier] and
@@ skipping 19 matching lines @@
   ///
   /// Declaring transformers are only considered dirty until they're finished
   /// declaring their outputs; past that point, they're always either
   /// [MATERIALIZING] or [IDLE]. Non-declaring transformers, by contrast, are
   /// always either [RUNNING] or [IDLE].
   static const RUNNING = const NodeStatus("running");
 
   final String _name;
 
   /// Returns the dirtiest status in [statuses].
-  static NodeStatus dirtiest(Iterable<NodeStatus> statuses) =>
-      statuses.fold(NodeStatus.IDLE,
-          (status1, status2) => status1.dirtier(status2));
+  static NodeStatus dirtiest(Iterable<NodeStatus> statuses) => statuses.fold(
+      NodeStatus.IDLE, (status1, status2) => status1.dirtier(status2));
 
   const NodeStatus(this._name);
 
   String toString() => _name;
 
   /// Returns [this] or [other], whichever is dirtier.
   NodeStatus dirtier(NodeStatus other) {
     if (this == RUNNING || other == RUNNING) return RUNNING;
     if (this == MATERIALIZING || other == MATERIALIZING) return MATERIALIZING;
     return IDLE;
   }
-}
+}