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];
+}

node/node.d.ts

@@ -348,7 +348,10 @@ declare module "http" {
     }
     export interface Agent { maxSockets: number; sockets: any; requests: any; }
 
-    export var STATUS_CODES: any;
+    export var STATUS_CODES: {
+        [errorCode: number]: string;
+        [errorCode: string]: string;
+    };
     export function createServer(requestListener?: (request: ServerRequest, response: ServerResponse) =>void ): Server;
     export function createClient(port?: number, host?: string): any;
     export function request(options: any, callback?: Function): ClientRequest;