windows: broken build after v8 upgrade

[bnoordhuis]

It seems #5804 broke the Windows build:

03:09:26 <@tjfontaine> node.obj : error LNK2001: unresolved external symbol "class v8::Local<class v8::Value> __cdecl UVException(int,char 
                       const *,char const *,char const *)" (?UVException@@YA?AV?$Local@VValue@v8@@@v8@@HPEBD00@Z) 
                       [g:\jenkins\workspace\nodejs-master-windows\1d92f228\node.vcxproj]
03:09:30 <@tjfontaine> node.obj : error LNK2001: unresolved external symbol "class v8::Local<class v8::Value> __cdecl ErrnoException(int,char 
                       const *,char const *,char const *)" (?ErrnoException@@YA?AV?$Local@VValue@v8@@@v8@@HPEBD00@Z) 
                       [g:\jenkins\workspace\nodejs-master-windows\1d92f228\node.vcxproj]
03:09:34 <@tjfontaine> tls_wrap.obj : error LNK2001: unresolved external symbol "unsigned __int64 __cdecl Length(class v8::Handle<class 
                       v8::Object>)" (?Length@@YA_KV?$Handle@VObject@v8@@@v8@@@Z) 
                       [g:\jenkins\workspace\nodejs-master-windows\1d92f228\node.vcxproj]
03:09:38 <@tjfontaine> tls_wrap.obj : error LNK2001: unresolved external symbol "char * __cdecl Data(class v8::Handle<class v8::Object>)" 
                       (?Data@@YAPEADV?$Handle@VObject@v8@@@v8@@@Z) [g:\jenkins\workspace\nodejs-master-windows\1d92f228\node.vcxproj]
03:09:42 <@tjfontaine> g:\jenkins\workspace\nodejs-master-windows\1d92f228\Release\node.exe : fatal error LNK1120: 4 unresolved externals 
                       [g:\jenkins\workspace\nodejs-master-windows\1d92f228\node.vcxproj]

Will investigate.