Copy should copy a usable full name of the item

[ultimaweapon]

Location

All page for any item (e.g. https://doc.rust-lang.org/std/fs/fn.read_dir.html).

Summary

When clicking on the copy button next to the item name the copied name is not usable in the code. The result when copied the name of https://doc.rust-lang.org/std/fs/fn.read_dir.html is:

std::fs - Rust::read_dir

Which does not useful. The copied text should be:

std::fs::read_dir