Partial implementation of HTTP module

lib/node.js

@@ -101,9 +101,9 @@ type child_process$spawnOpts = {
 }
 
 type child_process$ChildProcess = {
-  stdin: Stream;
-  stdout: Stream;
-  stderr: Stream;
+  stdin: stream$Stream;
+  stdout: stream$Stream;
+  stderr: stream$Stream;
   pid: number;
   connected: boolean;
 
@@ -402,7 +402,7 @@ declare class events$EventEmitter {
   addListener(event: string, listener: Function): events$EventEmitter;
   emit(event: string, ...args:Array): boolean;
   listeners(event: string): Array<Function>;
-  on(event: string, listener: Function): events$EventEmitter;
+  on(event: string, listener: (data: any) => void): events$EventEmitter;
   once(event: string, listener: Function): events$EventEmitter;
   removeAllListeners(events?: Array<string>): events$EventEmitter;
   removeListener(event: string, listener: Function): events$EventEmitter;
@@ -419,7 +419,30 @@ declare module "fs" {
 }
 
 declare module "http" {
-  // TODO
+  declare class IncomingMessage extends stream$Readable {
+    headers: Object;
+    httpVersion: string;
+    method: string;
+    trailers: Object;
+    setTimeout(msecs: number, callback: Function): void;
+    socket: any;  // TODO net.Socket
+    statusCode: number;
+    url: String;
+  }
+
+  declare class OutgoingMessage extends stream$Stream {
+    write(ins: string): void;
+    end(): void;
+  }
+
+  declare class ClientRequest extends OutgoingMessage {
+    // TODO
+  }
+
+  declare function request(
+    options: Object | string,
+    callback: (response: IncomingMessage) => void
+  ): ClientRequest;
 }
 
 declare module "https" {
@@ -450,12 +473,21 @@ declare module "readline" {
   // TODO
 }
 
-type Stream = {
-  // TODO
+declare class stream$Stream extends events$EventEmitter {
+  pipe(dest: any, options: any): void;
+}
+
+declare class stream$Readable extends stream$Stream {
+  setEncoding(): void;
+}
+
+declare class stream$Writable extends stream$Stream {
+  close(): void;
+  finish(): void;
 }
 
 declare module "stream" {
-  // TODO
+  declare class Stream extends stream$Stream {}
 }
 
 declare module "string_decoder" {