Function rustc_mir_build::thir::pattern::check_match::maybe_point_at_variant

fn maybe_point_at_variant<'a, 'p: 'a, 'tcx: 'a>(
    cx: &MatchCheckCtxt<'p, 'tcx>, 
    def: &AdtDef, 
    patterns: impl Iterator<Item = &'a DeconstructedPat<'p, 'tcx>>
) -> Vec<Span>