rustdoc search: Match identifers at word breaks

[aDotInTheVoid]

Rustdoc search should support matching identifers at "word breaks", not just the start of the name. (I'm not sure that's how it actually works, but that's my intuition. Read on for where rustdoc-search fails to find something it should).

Code

pub mod dustc_hir {
    pub struct Stability;
}

Reproduction Steps

rustdoc +nightly dustc.rs

Then search "hir::Stability"

Expected Outcome

I'd expect this to find dustc::dustc_hir::Stability

Actual Output

Search finds no items.

Version

rustdoc 1.96.0-nightly (7e46c5f 2026-04-01)

Additional Details

Inspired by the search results for hir::Stability not returning rustc_hir::Stability

CC @notriddle