Function rustc_mir::transform::simplify_try::match_get_variant_field

pub(in transform::simplify_try) fn match_get_variant_field<'tcx>(
    stmt: &Statement<'tcx>
) -> Option<(Local, Local, VarField<'tcx>, &'tcx List<PlaceElem<'tcx>>)>

Match on:

_LOCAL_INTO = ((_LOCAL_FROM as Variant).FIELD: TY);