feat(nodejs) added stronger typing for http status codes

node/node-tests.ts

@@ -100,3 +100,13 @@ var request = http.request('http://0.0.0.0');
 request.once('error', function () {});
 request.setNoDelay(true);
 request.abort();
+
+////////////////////////////////////////////////////
+/// Http tests : http://nodejs.org/api/http.html
+////////////////////////////////////////////////////
+module http_tests {
+    // Status codes
+    var code = 100;
+    var codeMessage = http.STATUS_CODES['400'];
+    var codeMessage = http.STATUS_CODES[400];
+}