{"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"self.body.walk_pats(target,"}]}
                self.body.walk_pats(target, &mut |pat| match self.body[pat] {
            &Expr::Assignment { target, value } => {
                    Pat::Expr(expr) => self.infer_mut_expr(expr, Mutability::Mut),