PRINT-DERIVE INPUT (DISPLAY): struct
Foo([bool; #[rustc_dummy(first)] #[rustc_dummy(second)]
{ #![rustc_dummy(third)] #[rustc_dummy(fourth)] 30 }]);
PRINT-DERIVE DEEP-RE-COLLECTED (DISPLAY): struct
Foo([bool; #[rustc_dummy(first)] #[rustc_dummy(second)]
{ #! [rustc_dummy(third)] #[rustc_dummy(fourth)] 30 }]);
PRINT-DERIVE INPUT (DEBUG): TokenStream [
    Ident {
        ident: "struct",
        span: $DIR/macro-rules-derive-cfg.rs:17:9: 17:15 (#3),
    },
    Ident {
        ident: "Foo",
        span: $DIR/macro-rules-derive-cfg.rs:17:16: 17:19 (#3),
    },
    Group {
        delimiter: Parenthesis,
        stream: TokenStream [
            Group {
                delimiter: Bracket,
                stream: TokenStream [
                    Ident {
                        ident: "bool",
                        span: $DIR/macro-rules-derive-cfg.rs:18:14: 18:18 (#3),
                    },
                    Punct {
                        ch: ';',
                        spacing: Alone,
                        span: $DIR/macro-rules-derive-cfg.rs:18:18: 18:19 (#3),
                    },
                    Punct {
                        ch: '#',
                        spacing: Alone,
                        span: $DIR/macro-rules-derive-cfg.rs:18:20: 18:21 (#3),
                    },
                    Group {
                        delimiter: Bracket,
                        stream: TokenStream [
                            Ident {
                                ident: "rustc_dummy",
                                span: $DIR/macro-rules-derive-cfg.rs:18:43: 18:54 (#3),
                            },
                            Group {
                                delimiter: Parenthesis,
                                stream: TokenStream [
                                    Ident {
                                        ident: "first",
                                        span: $DIR/macro-rules-derive-cfg.rs:18:55: 18:60 (#3),
                                    },
                                ],
                                span: $DIR/macro-rules-derive-cfg.rs:18:54: 18:61 (#3),
                            },
                        ],
                        span: $DIR/macro-rules-derive-cfg.rs:18:21: 18:63 (#3),
                    },
                    Punct {
                        ch: '#',
                        spacing: Alone,
                        span: $DIR/macro-rules-derive-cfg.rs:23:13: 23:14 (#0),
                    },
                    Group {
                        delimiter: Bracket,
                        stream: TokenStream [
                            Ident {
                                ident: "rustc_dummy",
                                span: $DIR/macro-rules-derive-cfg.rs:23:36: 23:47 (#0),
                            },
                            Group {
                                delimiter: Parenthesis,
                                stream: TokenStream [
                                    Ident {
                                        ident: "second",
                                        span: $DIR/macro-rules-derive-cfg.rs:23:48: 23:54 (#0),
                                    },
                                ],
                                span: $DIR/macro-rules-derive-cfg.rs:23:47: 23:55 (#0),
                            },
                        ],
                        span: $DIR/macro-rules-derive-cfg.rs:23:14: 23:57 (#0),
                    },
                    Group {
                        delimiter: Brace,
                        stream: TokenStream [
                            Punct {
                                ch: '#',
                                spacing: Joint,
                                span: $DIR/macro-rules-derive-cfg.rs:24:5: 24:6 (#0),
                            },
                            Punct {
                                ch: '!',
                                spacing: Alone,
                                span: $DIR/macro-rules-derive-cfg.rs:24:6: 24:7 (#0),
                            },
                            Group {
                                delimiter: Bracket,
                                stream: TokenStream [
                                    Ident {
                                        ident: "rustc_dummy",
                                        span: $DIR/macro-rules-derive-cfg.rs:24:29: 24:40 (#0),
                                    },
                                    Group {
                                        delimiter: Parenthesis,
                                        stream: TokenStream [
                                            Ident {
                                                ident: "third",
                                                span: $DIR/macro-rules-derive-cfg.rs:24:41: 24:46 (#0),
                                            },
                                        ],
                                        span: $DIR/macro-rules-derive-cfg.rs:24:40: 24:47 (#0),
                                    },
                                ],
                                span: $DIR/macro-rules-derive-cfg.rs:24:7: 24:49 (#0),
                            },
                            Punct {
                                ch: '#',
                                spacing: Alone,
                                span: $DIR/macro-rules-derive-cfg.rs:25:5: 25:6 (#0),
                            },
                            Group {
                                delimiter: Bracket,
                                stream: TokenStream [
                                    Ident {
                                        ident: "rustc_dummy",
                                        span: $DIR/macro-rules-derive-cfg.rs:25:28: 25:39 (#0),
                                    },
                                    Group {
                                        delimiter: Parenthesis,
                                        stream: TokenStream [
                                            Ident {
                                                ident: "fourth",
                                                span: $DIR/macro-rules-derive-cfg.rs:25:40: 25:46 (#0),
                                            },
                                        ],
                                        span: $DIR/macro-rules-derive-cfg.rs:25:39: 25:47 (#0),
                                    },
                                ],
                                span: $DIR/macro-rules-derive-cfg.rs:25:6: 25:49 (#0),
                            },
                            Literal {
                                kind: Integer,
                                symbol: "30",
                                suffix: None,
                                span: $DIR/macro-rules-derive-cfg.rs:26:5: 26:7 (#0),
                            },
                        ],
                        span: $DIR/macro-rules-derive-cfg.rs:23:58: 27:2 (#0),
                    },
                ],
                span: $DIR/macro-rules-derive-cfg.rs:18:13: 18:70 (#3),
            },
        ],
        span: $DIR/macro-rules-derive-cfg.rs:17:19: 19:10 (#3),
    },
    Punct {
        ch: ';',
        spacing: Alone,
        span: $DIR/macro-rules-derive-cfg.rs:19:10: 19:11 (#3),
    },
]