GN: Makes GN output deterministic

tools/gn/commands.cc

 // Copyright (c) 2013 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.
 
 #include "tools/gn/commands.h"
 
 #include "base/command_line.h"
 #include "tools/gn/builder.h"
 #include "tools/gn/filesystem_utils.h"
 #include "tools/gn/item.h"
 #include "tools/gn/label.h"
 #include "tools/gn/label_pattern.h"
+#include "tools/gn/pointer_set.h"
 #include "tools/gn/setup.h"
 #include "tools/gn/standard_out.h"
 #include "tools/gn/target.h"
 
 namespace commands {
 
 namespace {
 
 // Like above but the input string can be a pattern that matches multiple
 // targets. If the input does not parse as a pattern, prints and error and
@@ skipping 464 matching lines @@
     case TARGET_PRINT_LABEL:
       PrintTargetsAsLabels(indent, *targets);
       break;
     case TARGET_PRINT_OUTPUT:
       PrintTargetsAsOutputs(indent, *targets);
       break;
   }
 }
 
 void FilterAndPrintTargetSet(bool indent,
-                             const std::set<const Target*>& targets) {
+                             const PointerSet<const Target>& targets) {
   std::vector<const Target*> target_vector(targets.begin(), targets.end());
   FilterAndPrintTargets(indent, &target_vector);
 }
 
 }  // namespace commands