Adding missing v8 namespace to NODE_PSYMBOL

src/node.h

@@ -39,7 +39,7 @@ namespace node {
 
 int Start (int argc, char *argv[]);
 
-#define NODE_PSYMBOL(s) Persistent<String>::New(String::NewSymbol(s))
+#define NODE_PSYMBOL(s) v8::Persistent<v8::String>::New(v8::String::NewSymbol(s))
 
 /* Converts a unixtime to V8 Date */
 #define NODE_UNIXTIME_V8(t) v8::Date::New(1000*static_cast<double>(t))