fn find_unresolved_references(
db: &RootDatabase,
sema: &Semantics<'_, RootDatabase>,
file_id: FileId,
module: &Module,
) -> Vec<TextRange>fn find_unresolved_references(
db: &RootDatabase,
sema: &Semantics<'_, RootDatabase>,
file_id: FileId,
module: &Module,
) -> Vec<TextRange>