Weird parse error when writing a lifetime-bounded trait object in the wrong order

The following code

``` Rust
trait Tr {}
struct S<'a>(&'a 'static+Tr);
```

gives the following weird error

```
<anon>:2:18: 2:25 error: expected type, found token LIFETIME(ast::Ident{name: ast::Name(3u32), ctxt: 0u32})
<anon>:2 struct S<'a>(&'a 'static+Tr);
```

If you write the bounds in the reverse order

``` Rust
trait Tr {}
struct S<'a>(&'a Tr+'static);
```

It works.
