{"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"Rvalue::Cast(ref"}]}
            Rvalue::Cast(ref mut kind, ref mut value, to) => {
            Rvalue::Len(ref mut place) => return self.simplify_len(place, location),
                return self.simplify_cast(kind, value, to, location);