Correct validation of bindings to generic components and directives

[leonsenft]

Note this issue is being filed preemptively, as support for generics will be added in the upcoming release of package:angular v5.1.0.

Issue

An incorrect error is shown when binding to a property with a generic-bounded, generic type.

Reproduction

@Component(
  selector: 'list',
  template: '',
)
class ListComponent<T extends Iterable<E>, E> {
  @Input()
  T values;
}

@Component(
  selector: 'example',
  template: '<list [values]="values"></list>',
                             ^^^^^^   
  directives: [ListComponent],
  directiveTypes: [Typed<ListComponent<List<int>, int>>()],
)
class ExampleComponent {
  final values = [1, 2];
}

The above code is valid, but the following error is raised:

Attribute value expression (of type List<int>) is not assignable to component input (of type Iterable<R>) [input_binding_type_error]