{"ast_node_type":"other","tokens":[{"end":48,"kind":"keyword","start":0,"text":"//!"}]}
//! - `visit_foo`, by default, calls `super_foo`
//! - introduce a `visit_foo` and a `super_foo` method for every MIR type
//! - `super_foo`, by default, destructures the `foo` and calls `visit_foo`