GN: don't write separate files for non-binary targets

tools/gn/command_refs.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 <stddef.h>
 
 #include <map>
 #include <set>
 
 #include "base/command_line.h"
@@ skipping 15 matching lines @@
 namespace {
 
 typedef std::set<const Target*> TargetSet;
 typedef std::vector<const Target*> TargetVector;
 
 // Maps targets to the list of targets that depend on them.
 typedef std::multimap<const Target*, const Target*> DepMap;
 
 // Populates the reverse dependency map for the targets in the Setup.
 void FillDepMap(Setup* setup, DepMap* dep_map) {
-  for (auto* target : setup->builder()->GetAllResolvedTargets()) {
+  for (auto* target : setup->builder().GetAllResolvedTargets()) {
     for (const auto& dep_pair : target->GetDeps(Target::DEPS_ALL))
       dep_map->insert(std::make_pair(dep_pair.ptr, target));
   }
 }
 
 // Forward declaration for function below.
 size_t RecursivePrintTargetDeps(const DepMap& dep_map,
                                const Target* target,
                                TargetSet* seen_targets,
                                int indent_level);
@@ skipping 389 matching lines @@
                                    &target_matches, &config_matches,
                                    &toolchain_matches, &file_matches))
     return 1;
 
   // When you give a file or config as an input, you want the targets that are
   // associated with it. We don't want to just append this to the
   // target_matches, however, since these targets should actually be listed in
   // the output, while for normal targets you don't want to see the inputs,
   // only what refers to them.
   std::vector<const Target*> all_targets =
-      setup->builder()->GetAllResolvedTargets();
+      setup->builder().GetAllResolvedTargets();
   UniqueVector<const Target*> explicit_target_matches;
   for (const auto& file : file_matches) {
     GetTargetsContainingFile(setup, all_targets, file, all_toolchains,
                              &explicit_target_matches);
   }
   for (auto* config : config_matches) {
     GetTargetsReferencingConfig(setup, all_targets, config, all_toolchains,
                                 &explicit_target_matches);
   }
 
@@ skipping 24 matching lines @@
 
   // If you ask for the references of a valid target, but that target has
   // nothing referencing it, we'll get here without having printed anything.
   if (!quiet && cnt == 0)
     OutputString("Nothing references this.\n", DECORATION_YELLOW);
 
   return 0;
 }
 
 }  // namespace commands