Unbreak gcmole bots.

tools/gcmole/gcmole.lua

 -- Copyright 2011 the V8 project authors. All rights reserved.
 -- Redistribution and use in source and binary forms, with or without
 -- modification, are permitted provided that the following conditions are
 -- met:
 --
 --     * Redistributions of source code must retain the above copyright
 --       notice, this list of conditions and the following disclaimer.
 --     * Redistributions in binary form must reproduce the above
 --       copyright notice, this list of conditions and the following
 --       disclaimer in the documentation and/or other materials provided
@@ skipping 80 matching lines @@
 end
 
 local function MakeClangCommandLine(plugin, plugin_args, triple, arch_define)
    if plugin_args then
      for i = 1, #plugin_args do
         plugin_args[i] = "-Xclang -plugin-arg-" .. plugin
            .. " -Xclang " .. plugin_args[i]
      end
      plugin_args = " " .. table.concat(plugin_args, " ")
    end
-   return CLANG_BIN .. "/clang++ -c "
+   return CLANG_BIN .. "/clang++ -std=c++11 -c "
       .. " -Xclang -load -Xclang " .. CLANG_PLUGINS .. "/libgcmole.so"
       .. " -Xclang -plugin -Xclang "  .. plugin
       .. (plugin_args or "")
       .. " -Xclang -triple -Xclang " .. triple
       .. " -D" .. arch_define
       .. " -DENABLE_DEBUGGER_SUPPORT"
       .. " -DV8_I18N_SUPPORT"
       .. " -I./"
       .. " -Ithird_party/icu/source/common"
       .. " -Ithird_party/icu/source/i18n"
@@ skipping 274 matching lines @@
 
 for _, arch in ipairs(ARCHS) do
    if not ARCHITECTURES[arch] then
       error ("Unknown arch: " .. arch)
    end
 
    errors = SafeCheckCorrectnessForArch(arch, report) or errors
 end
 
 os.exit(errors and 1 or 0)