Allow typing label names on Windows by not treating things that start with slashes as arguments rat…

tools/gn/command_desc.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 <algorithm>
 #include <set>
 #include <sstream>
 
 #include "base/command_line.h"
 #include "tools/gn/commands.h"
@@ skipping 194 matching lines @@
   for (ConfigValuesIterator iter(target); !iter.done(); iter.Next()) {
     if ((iter.cur().*getter)().empty())
       continue;
 
     // Optional blame sub-head.
     if (display_blame) {
       const Config* config = iter.GetCurrentConfig();
       if (config) {
         // Source of this value is a config.
         out << "  From " << config->label().GetUserVisibleName(false) << "\n";
+        OutputSourceOfDep(target, config->label(), out);
       } else {
         // Source of this value is the target itself.
         out << "  From " << target->label().GetUserVisibleName(false) << "\n";
       }
-      OutputSourceOfDep(target, config->label(), out);
     }
 
     // Actual values.
     ConfigValuesToStream(iter.cur(), getter, writer, out);
   }
 
   // First write the values from the config itself.
   if (!(target->config_values().*getter)().empty()) {
     if (display_blame)
       out << "  From " << target->label().GetUserVisibleName(false) << "\n";
@@ skipping 158 matching lines @@
   OUTPUT_CONFIG_VALUE(cflags_objc, std::string)
   OUTPUT_CONFIG_VALUE(cflags_objcc, std::string)
   PrintLdflags(target, true);
 
   PrintDeps(target, true);
 
   return 0;
 }
 
 }  // namespace commands