{"ast_node_type":"other","tokens":[{"end":121,"kind":"keyword","start":0,"text":"//"}]}
                        // If this is a union field, also throw an error for `DerefMut` of `ManuallyDrop` (see RFC 2514).
                        self.enforce_context_effects(None, expr.span, method.def_id, method.args);
                        // This helps avoid accidental drops.