{"ast_node_type":"other","tokens":[{"end":66,"kind":"keyword","start":0,"text":"self.var_values[br.var.as_usize()].expect_region()"}]}
                self.var_values[br.var.as_usize()].expect_region()
            ty::ReBound(debruijn, br) if debruijn == self.current_index => {
            }