Where clause bounds in re-exported structs clauses aren't preserved by rustdoc

[tomjakubowski]

e.g. given:

// foo.rs
pub struct Foo<A> where A: Copy;
pub struct Foo_<A: Copy>;

// bar.rs
extern crate foo;

pub use foo::{Foo, Foo_};

rustdoc will show the bound on bar::Foo_ but not on bar::Foo.

[jroesch]

cc me, may check this out in between compiles

[SimonSapin]

As an example of this, compare:

http://doc.rust-lang.org/std/slice/trait.SliceExt.html#tymethod.binary_search_by
http://doc.rust-lang.org/core/slice/trait.SliceExt.html#tymethod.binary_search_by