{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"///"}]}
/// Note that the subtree may already be skipped due to the context analysis this function does.
/// If the callback returns true on an [`WalkEvent::Enter`], the subtree of the expression will be skipped.
pub fn preorder_expr(start: &ast::Expr, cb: &mut dyn FnMut(WalkEvent<ast::Expr>) -> bool) {