THRIFT-3926: Fix undeclared statusCode variable (#1531)

Client: nodejs
diff --git a/lib/nodejs/lib/thrift/http_connection.js b/lib/nodejs/lib/thrift/http_connection.js
index 4f5378f..3c2ab0f 100644
--- a/lib/nodejs/lib/thrift/http_connection.js
+++ b/lib/nodejs/lib/thrift/http_connection.js
@@ -170,7 +170,7 @@
     var dataLen = 0;
 
     if (response.statusCode !== 200) {
-      this.emit("error", new THTTPException(statusCode, response));
+      this.emit("error", new THTTPException(response));
     }
 
     response.on('error', function (e) {
@@ -251,11 +251,11 @@
 exports.createHttpClient = createClient
 
 
-function THTTPException(statusCode, response) {
+function THTTPException(response) {
   thrift.TApplicationException.call(this);
   Error.captureStackTrace(this, this.constructor);
   this.name = this.constructor.name;
-  this.statusCode = statusCode;
+  this.statusCode = response.statusCode;
   this.response = response;
   this.type = thrift.TApplicationExceptionType.PROTOCOL_ERROR;
   this.message = "Received a response with a bad HTTP status code: " + response.statusCode;