fn trait_applicable_items<'db>(
db: &'db RootDatabase,
current_crate: Crate,
scope: &SemanticsScope<'db>,
trait_candidate: &TraitImportCandidate<'db>,
trait_assoc_item: bool,
mod_path: impl Fn(ItemInNs) -> Option<ModPath>,
scope_filter: impl Fn(Trait) -> bool,
) -> FxIndexSet<LocatedImport>