Function rustc_mir::transform::check_unsafety::check_unused_unsafe

pub(in transform::check_unsafety) fn check_unused_unsafe(
    tcx: TyCtxt<'_>, 
    def_id: LocalDefId, 
    used_unsafe: &FxHashSet<HirId>, 
    unsafe_blocks: &mut Vec<(HirId, bool)>
)