Type inference not handling generic collection

Sample code:

class Foo {
&nbsp;&nbsp;String msg;
&nbsp;&nbsp;Foo(this.msg);
}

main() {
&nbsp;&nbsp;var foos = &lt;Foo&gt;[];
&nbsp;&nbsp;foos.add(new Foo('a'));
&nbsp;&nbsp;var foo = foos[0];
&nbsp;&nbsp;print(foo.does_not_exist);
}

I would expect a warning on foo.does_not_exist

Current version of editor:

Version 0.1.0.201205301155, Build 8124
