Check for inputs not generated by deps

tools/gn/command_refs.cc

Index: tools/gn/command_refs.cc
diff --git a/tools/gn/command_refs.cc b/tools/gn/command_refs.cc
index 9c89114668d96bdf33acbaeca65c41f266ae0136..a97e9a759b9a697aa64610329bc1e2ef709af89d 100644
--- a/tools/gn/command_refs.cc
+++ b/tools/gn/command_refs.cc
@@ -141,6 +141,13 @@ bool TargetContainsFile(const Target* target, const SourceFile& file) {
     if (cur_file == file.value())
       return true;
   }
+
+  std::vector<SourceFile> outputs;
+  target->action_values().GetOutputsAsSourceFiles(target, &outputs);
+  for (const auto& cur_file : outputs) {
+    if (cur_file == file)
+      return true;
+  }
   return false;
 }
 
@@ -286,9 +293,9 @@ const char kRefs_Help[] =
     "     \"gn help label_pattern\" for details.\n"
     "\n"
     "   - File name: The result will be which targets list the given file in\n"
-    "     its \"inputs\", \"sources\", \"public\", or \"data\". Any input\n"
-    "     that does not contain wildcards and does not match a target or a\n"
-    "     config will be treated as a file.\n"
+    "     its \"inputs\", \"sources\", \"public\", \"data\", or \"outputs\".\n"
+    "     Any input that does not contain wildcards and does not match a\n"
+    "     target or a config will be treated as a file.\n"
     "\n"
     "   - Response file: If the input starts with an \"@\", it will be\n"
     "     interpreted as a path to a file containing a list of labels or\n"
@@ -391,7 +398,7 @@ int RunRefs(const std::vector<std::string>& args) {
   bool all_toolchains = cmdline->HasSwitch("all-toolchains");
 
   Setup* setup = new Setup;
-  setup->set_check_for_bad_items(false);
+  setup->build_settings().set_check_for_bad_items(false);
   if (!setup->DoSetup(args[0], false) || !setup->Run())
     return 1;