fn interior_mutability_suggestion(
cx: &LateContext<'_>,
def_id: DefId,
) -> (bool, Option<StaticMutRefsInteriorMutabilitySugg>)fn interior_mutability_suggestion(
cx: &LateContext<'_>,
def_id: DefId,
) -> (bool, Option<StaticMutRefsInteriorMutabilitySugg>)