Rustdoc frontend: `const:` type filter does not work

[cyqsimon]

Description

The help widget states:

Prefix searches with a type followed by a colon (e.g., fn:) to restrict the search to a given item kind.
Accepted kinds are: fn, mod, struct, enum, trait, type, macro, and const.

But const does not work. Instead you need to write constant. See formal syntax.

Expected Outcome

const: type filter should work.

Version

rustdoc 1.92.0 (ded5c06 2025-12-08)