Rustdoc reduce search rank for deprecated items

[pickfire]

When user search radix the non-const which is deprecated rank higher than the non-deprecated version.

Would be nice to reduce rank of deprecated items in search, it appears on the first result.

It would be better if the search result show that the item is deprecated in favor of something else, and that something else have a higher ranking.

@rustbot label A-rustdoc-search C-enhancement T-rustdoc

[rustbot]

Error: Label C can only be set by Rust team members

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[pitaj]

@rustbot claim

[pitaj]

I'd like to move forward on this. Hopefully we can get an FCP started. The prime motivation for this is to improve search results when searching for numeric constants like i32::MIN.

Problem

Currently, when searching for i32::MIN, the deprecated item std::i32::MIN shows up before i32::MIN in the search results, and there is no indication that std::i32::MIN is deprecated until you go to the page for std::i32::MIN:

And it's even worse if you search for just MIN, where all of the deprecated std::<num>::MIN items come up above the constants on the number types:

Resolution

• sort deprecated items lower in the search results
• mark deprecated items as deprecated in search results

i32::MAX shows up above std::i32::MAX and core::i32::MAX

If just searching for min, the deprecated results show up far below other things:

one page later

And, as you can see, the "Deprecation planned" message shows up in the search results. The same is true for fully-deprecated items like mem::uninitialized:

For good measure, the radix search from the OP:

[pitaj]

Another example from #107629 (comment):

[jsha]

Fixed by #107629.