rustdoc: linkify "Structs", "Traits", etc., in sidebar

[jsha]

In rustdoc sidebars, most headings are clickable links. For instance, "Required Methods" and "Implementors" in the sidebar of https://doc.rust-lang.org/nightly/std/string/trait.ToString.html.

However, the headings under "Other items in..." are not clickable. We should link those to the appropriate subheading on the module page. That allows the user to see a more verbose listing of items in the module, since each one has a description alongside it.

[TmLev]

So, for instance, sidebar heading Structs should lead here?

[chansuke]

@rustbot claim

[jsha]

So, for instance, sidebar heading Structs should lead here?

Yes, that's correct.

[jsha]

By the way @chansuke be aware this will conflict with #92660. Resolving the conflict should be pretty easy though.

[chansuke]

@jsha Thanks

[jsha]

@chansuke any progress on this? I'd like to get it landed before the beta cut, so we have a consistent UI where headings in the sidebar are clickable.

[chansuke]

@jsha sorry, i couldn't make time last week.ok,i will unassign me, thanks.