feat(typings): add typing specs

add test in gulpfile which will compile a basic TS file with generated
angular2.d.ts to ensure generated d.ts is valid syntactic TS

Adds support for enums in .d.ts generation pipeline.
Removes renaming reexports in http module.

modules/angular2/angular2.api.ts

@@ -11,14 +11,16 @@ export * from './angular2';
 // 1) if the symbol is intended to be part of the public API, then re-export somewhere else
 // 2) if the symbol should be omitted from the public API, then the class exposing it should
 //    not be exported, or should avoid exposing the symbol.
-export {AbstractChangeDetector} from './src/change_detection/abstract_change_detector';
-export {ProtoRecord} from './src/change_detection/proto_record';
+export {ProtoRecord, RecordType} from './src/change_detection/proto_record';
 export * from './src/core/compiler/element_injector';
+export {DependencyAnnotation} from './src/di/annotations_impl';
 // FIXME: this is a workaround for https://github.com/angular/angular/issues/2356
 // We export the Directive *annotation* instead of the *decorator*.
 // But it breaks the build.
 export {Directive, LifecycleEvent} from './src/core/annotations_impl/annotations';
 export {Form} from './src/forms/directives/form_interface';
+export {TypeDecorator, ClassDefinition} from './src/util/decorators';
+export {Query} from './src/core/annotations_impl/di';
 export {ControlContainer} from './src/forms/directives/control_container';
 export {Injectable} from './src/di/annotations_impl';
 export {BaseQueryList} from './src/core/compiler/base_query_list';

modules/angular2/angular2.ts

@@ -17,7 +17,16 @@ export {
   JitChangeDetection,
   PreGeneratedChangeDetection,
   preGeneratedProtoDetectors,
-  defaultPipeRegistry
+  defaultPipeRegistry,
+  DirectiveIndex,
+  BindingRecord,
+  ProtoChangeDetector,
+  ChangeDispatcher,
+  ChangeDetector,
+  Locals,
+  ChangeDetectorDefinition,
+  BasePipe,
+  DirectiveRecord
 } from './change_detection';
 
 export {
@@ -40,7 +49,10 @@ export {
   InstantiationError,
   InvalidBindingError,
   NoAnnotationError,
-  OpaqueToken
+  OpaqueToken,
+  ResolvedBinding,
+  BindingBuilder,
+  Dependency
 } from './di';
 
 export * from './core';

modules/angular2/change_detection.ts

@@ -45,7 +45,7 @@ export {DynamicChangeDetector} from './src/change_detection/dynamic_change_detec
 export {ChangeDetectorRef} from './src/change_detection/change_detector_ref';
 export {PipeRegistry} from './src/change_detection/pipes/pipe_registry';
 export {uninitialized} from './src/change_detection/change_detection_util';
-export {WrappedValue, Pipe, PipeFactory} from './src/change_detection/pipes/pipe';
+export {WrappedValue, Pipe, PipeFactory, BasePipe} from './src/change_detection/pipes/pipe';
 export {NullPipe, NullPipeFactory} from './src/change_detection/pipes/null_pipe';
 export {
   defaultPipes,

modules/angular2/http.ts

@@ -16,9 +16,19 @@ export {Request} from 'angular2/src/http/static_request';
 export {Response} from 'angular2/src/http/static_response';
 
 export {Http, XHRBackend, XHRConnection, BaseRequestOptions, RequestOptions, HttpFactory};
-export {IHttp} from 'angular2/src/http/interfaces';
+export {
+  IHttp,
+  IRequestOptions,
+  IRequest,
+  IResponse,
+  Connection,
+  ConnectionBackend
+} from 'angular2/src/http/interfaces';
 export {Headers} from 'angular2/src/http/headers';
 
+export * from 'angular2/src/http/enums';
+export {URLSearchParams} from 'angular2/src/http/url_search_params';
+
 /**
  * Provides a basic set of injectables to use the {@link Http} service in any application.
  *

modules/angular2/src/http/interfaces.ts

@@ -20,7 +20,7 @@ export interface IRequestOptions {
   cache?: RequestCacheOpts;
 }
 
-export interface Request {
+export interface IRequest {
   method: RequestMethods;
   mode: RequestModesOpts;
   credentials: RequestCredentialsOpts;
@@ -34,7 +34,7 @@ export interface ResponseOptions {
   url?: string;
 }
 
-export interface Response {
+export interface IResponse {
   headers: Headers;
   ok: boolean;
   status: number;
@@ -49,12 +49,14 @@ export interface Response {
   json(): Object;
 }
 
-export interface ConnectionBackend { createConnection(observer: any, config: Request): Connection; }
+export interface ConnectionBackend {
+  createConnection(observer: any, config: IRequest): Connection;
+}
 
 export interface Connection {
   readyState: ReadyStates;
-  request: Request;
-  response: Rx.Subject<Response>;
+  request: IRequest;
+  response: Rx.Subject<IResponse>;
   dispose(): void;
 }
 
@@ -81,4 +83,4 @@ export interface Connection {
  */
 // Prefixed as IHttp because used in conjunction with Http class, but interface is callable
 // constructor(@Inject(Http) http:IHttp)
-export interface IHttp { (url: string, options?: IRequestOptions): Rx.Observable<Response> }
+export interface IHttp { (url: string, options?: IRequestOptions): Rx.Observable<IResponse> }

modules/angular2/src/http/static_request.ts

@@ -1,6 +1,6 @@
 import {RequestMethods, RequestModesOpts, RequestCredentialsOpts} from './enums';
 import {URLSearchParams} from './url_search_params';
-import {IRequestOptions, Request as IRequest} from './interfaces';
+import {IRequestOptions, IRequest} from './interfaces';
 import {Headers} from './headers';
 import {BaseException, RegExpWrapper} from 'angular2/src/facade/lang';
 

modules/angular2/src/http/static_response.ts

@@ -1,4 +1,4 @@
-import {Response as IResponse, ResponseOptions} from './interfaces';
+import {IResponse, ResponseOptions} from './interfaces';
 import {ResponseTypes} from './enums';
 import {baseResponseOptions} from './base_response_options';
 import {BaseException, isJsObject, isString, global} from 'angular2/src/facade/lang';