scope.Close in GuessHandleType; don't use uv_is_tty

src/node.js

@@ -108,10 +108,10 @@
 
     } else {
       var binding = process.binding('stdio');
-      var fd = binding.openStdin();
       var Module = NativeModule.require('module');
 
-      if (NativeModule.require('tty').isatty(fd)) {
+      // If stdin is a TTY.
+      if (NativeModule.require('tty').isatty(0)) {
         // REPL
         Module.requireRepl().start();
 

src/tty_wrap.cc

@@ -69,20 +69,18 @@ class TTYWrap : StreamWrap {
 
     switch (t) {
       case UV_TTY:
-        return String::New("TTY");
+        return scope.Close(String::New("TTY"));
 
       case UV_NAMED_PIPE:
-        return String::New("PIPE");
+        return scope.Close(String::New("PIPE"));
 
       case UV_FILE:
-        return String::New("FILE");
+        return scope.Close(String::New("FILE"));
 
       default:
         assert(0);
         return v8::Undefined();
     }
-    return uv_is_tty(fd) ? v8::True() : v8::False();
-
   }
 
   static Handle<Value> IsTTY(const Arguments& args) {