set _VARDADIC_MAX=10 preprocessor definition to make test pass in vc11.

vsprojects/tests.vcproj

@@ -46,7 +46,7 @@
 				AdditionalOptions="/wd4244 /wd4267 /wd4018 /wd4355 /wd4800 /wd4251 /wd4996 /wd4146 /wd4305"
 				Optimization="0"
 				AdditionalIncludeDirectories="../src;.;../gtest/include"
-				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;"
+				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;_VARIADIC_MAX=10;"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
@@ -122,7 +122,7 @@
 				Name="VCCLCompilerTool"
 				AdditionalOptions="/wd4244 /wd4267 /wd4018 /wd4355 /wd4800 /wd4251 /wd4996 /wd4146 /wd4305"
 				AdditionalIncludeDirectories="../src;.;../gtest/include"
-				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;"
+				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;_VARIADIC_MAX=10;"
 				RuntimeLibrary="2"
 				UsePrecompiledHeader="0"
 				WarningLevel="3"