feat(decorators): adds decorator versions of DI annotations.

In 'angular2/di' the symbol:
- Inject is a decorator
- InjectAnnotation is an annotation

Internally one an get a hold of annotations without *Annotations appened
(to make ts2dart work without workarounds) by importing from
'angular2/src/di/annotations_impl' instead of 'angular2/di'. This is
needed only for users that transpile through TS and through ts2dart.

Author: rkirov

modules/angular2/annotations.js

@@ -9,4 +9,4 @@
  *
  */
 export * from './src/core/annotations/annotations';
-export * from './src/core/decorators/decorators';
+export * from './src/core/annotations/decorators';

modules/angular2/di.js

@@ -5,7 +5,8 @@
  * The `di` module provides dependency injection container services.
  */
 
-export {Inject, InjectPromise, InjectLazy, Injectable, Optional, DependencyAnnotation} from './src/di/annotations';
+export * from './src/di/annotations';
+export * from './src/di/decorators';
 export {Injector} from './src/di/injector';
 export {Binding, ResolvedBinding, Dependency, bind} from './src/di/binding';
 export {Key, KeyRegistry} from './src/di/key';

modules/angular2/src/change_detection/change_detection.js

@@ -8,10 +8,9 @@ import {BindingRecord} from './binding_record';
 import {DirectiveRecord} from './directive_record';
 import {DEFAULT} from './constants';
 import {ChangeDetection, ProtoChangeDetector} from './interfaces';
-import {Injectable} from 'angular2/di';
+import {Injectable} from 'angular2/src/di/annotations_impl';
 import {List} from 'angular2/src/facade/collection';
 
-
 /**
  * Structural diffing for `Object`s and `Map`s.
  *

modules/angular2/src/change_detection/parser/lexer.js

@@ -1,4 +1,4 @@
-import {Injectable} from 'angular2/di';
+import {Injectable} from 'angular2/src/di/annotations_impl';
 import {List, ListWrapper, SetWrapper} from "angular2/src/facade/collection";
 import {int, NumberWrapper, StringJoiner, StringWrapper} from "angular2/src/facade/lang";
 

modules/angular2/src/change_detection/parser/parser.js

@@ -1,4 +1,4 @@
-import {Injectable} from 'angular2/di';
+import {Injectable} from 'angular2/src/di/annotations_impl';
 import {int, isBlank, isPresent,  BaseException, StringWrapper, RegExpWrapper} from 'angular2/src/facade/lang';
 import {ListWrapper, List} from 'angular2/src/facade/collection';
 import {Lexer, EOF, Token, $PERIOD, $COLON, $SEMICOLON, $LBRACKET, $RBRACKET,

modules/angular2/src/change_detection/pipes/pipe_registry.js

@@ -1,7 +1,7 @@
 import {List, ListWrapper} from 'angular2/src/facade/collection';
 import {isBlank, isPresent, BaseException, CONST} from 'angular2/src/facade/lang';
 import {Pipe} from './pipe';
-import {Injectable} from 'angular2/di';
+import {Injectable} from 'angular2/src/di/annotations_impl';
 import {ChangeDetectorRef} from '../change_detector_ref';
 
 @Injectable()

modules/angular2/src/core/decorators/decorators.dart renamed to modules/angular2/src/core/annotations/decorators.dart

@@ -0,0 +1,23 @@
+import {
+  ComponentAnnotation,
+  DirectiveAnnotation
+} from './annotations';
+import {ViewAnnotation} from './view';
+import {AncestorAnnotation, ParentAnnotation} from './visibility';
+import {AttributeAnnotation, QueryAnnotation} from './di';
+import {makeDecorator, makeParamDecorator} from '../../util/decorators';
+
+/* from annotations */
+export var Component = makeDecorator(ComponentAnnotation);
+export var Decorator = makeDecorator(DirectiveAnnotation);
+
+/* from view */
+export var View = makeDecorator(ViewAnnotation);
+
+/* from visibility */
+export var Ancestor = makeParamDecorator(AncestorAnnotation);
+export var Parent = makeParamDecorator(ParentAnnotation);
+
+/* from di */
+export var Attribute = makeParamDecorator(AttributeAnnotation);
+export var Query = makeParamDecorator(QueryAnnotation);

modules/angular2/src/core/annotations/decorators.es6

@@ -1,6 +1,6 @@
 import {CONST, normalizeBlank, isPresent} from 'angular2/src/facade/lang';
 import {ListWrapper, List} from 'angular2/src/facade/collection';
-import {Injectable} from 'angular2/di';
+import {Injectable} from 'angular2/src/di/annotations_impl';
 import {DEFAULT} from 'angular2/change_detection';
 
 // type StringMap = {[idx: string]: string};

modules/angular2/src/core/annotations_impl/annotations.js

@@ -1,5 +1,5 @@
 import {CONST} from 'angular2/src/facade/lang';
-import {DependencyAnnotation} from 'angular2/di';
+import {DependencyAnnotation} from 'angular2/src/di/annotations_impl';
 
 /**
  * Specifies that a constant attribute value should be injected.