Parent and Ancestor annotations in typescript

the equivalent of the following in dart works perfectly, in typescript after defining the Parent and the Ancestor annotations in typescript typings as:

declare module "angular2/annotations"{
   function Parent():(target: Type) => any;
   function Ancestor():(target: Type) => any;
}```

And using it as:

```typescript
/// <reference path="typings/angular2/angular2.d.ts" />
import {bootstrap, Component, View} from 'angular2/angular2';
import {Parent} from 'angular2/annotations'

@Component({selector:"c2"})
@View({template:'i am c2'})
class C2{
   constructor(@Parent() p:C1){
      console.log(p);
   }
}

@Component({selector:"c1"})
@View({template:`<c2></c2>`,directives:[C2]})
class C1{}

@Component({selector:"app"})
@View({template:`<c1></c1>`, directives:[C1]})
class App{}

bootstrap(App);

it throws:

TypeError: Cannot read property 'length' of undefined

TypeError: Cannot read property 'length' of undefined
    at ReflectionCapabilities.execute.ReflectionCapabilities._zipTypesAndAnnotaions (https://code.angularjs.org/2.0.0-alpha.22/angular2.dev.js:6620:64)
    at ReflectionCapabilities.execute.ReflectionCapabilities.parameters (https://code.angularjs.org/2.0.0-alpha.22/angular2.dev.js:6641:29)
    at Reflector.execute.Reflector.parameters (https://code.angularjs.org/2.0.0-alpha.22/angular2.dev.js:16282:50)
    at _dependenciesFor (https://code.angularjs.org/2.0.0-alpha.22/angular2.dev.js:16989:28)
    at execute.Binding.resolve (https://code.angularjs.org/2.0.0-alpha.22/angular2.dev.js:17122:28)
    at Function.execute.DirectiveBinding.createFromBinding (https://code.angularjs.org/2.0.0-alpha.22/angular2.dev.js:23681:24)
    at Function.execute.DirectiveBinding.createFromType (https://code.angularjs.org/2.0.0-alpha.22/angular2.dev.js:23687:37)
    at Compiler.execute.Compiler._bindDirective (https://code.angularjs.org/2.0.0-alpha.22/angular2.dev.js:24947:39)
    at https://code.angularjs.org/2.0.0-alpha.22/angular2.dev.js:24992:29
   ...

[neokeats]

@mhevery since we are tracking it else where.

it would be nice to reference it, not just closing like that…

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