minifier: invalid function handling in switch statement

[hyp3rflow]

Describe the bug

Even if the function in switch statement has some expressions; like console.log("hi"), the minified result remains unchanged.

Input code

const k = (() => {
    switch (1) { 
        case 0: 
            function x() {}
        default:
            x(); 
    } 
})();

Config

No response

Playground link (or link to the minimal reproduction)

https://play.swc.rs/?version=1.4.11&code=H4sIAAAAAAAAA1WMvQqAIBSFd5%2FijLrVati7iClJoYNKgfjuXQuKvu38mhhSxgYFzgXUjMpApMNns4KPAhW30zE6WQzyMzquBJN9DDjpoLY3W6zTZc%2FyV6bO9MwbWBOk2AWJvP1RggAAAA%3D%3D&config=H4sIAAAAAAAAA32UO3LjMAyG%2B5zCozrFjostcoDtcgYOLYIyvSShIUDHmozvvtDDj40hdRI%2B%2FAAJgPh%2B2%2B2aE7XNx%2B5bPuWnt4Wg3P%2FFQkNmexFLA22y1JbQc%2FN%2BoycakbeRYDJdZ9KwLR3wpKL9r%2F1%2BUTQRkeCmWGwp5OCH55wtpr4A0ZNNrBKyJshM%2F%2BsXVvBrBFzqs%2F2AGMHmDWIsmZAZOiha4BZjtD2BOduiRBlPaksg1FKMsDI40xfsVZ5d4IBZcr5SB9aZFh0oKBRoOZxBk0kukWWS6yn3mbCDQ%2B26qc8%2F1HC2sVpWcsJlaomcVol6xEBsfM1aCWe4UoMZLsX9qQzeFOBa8qvuhCGv9OQvgFQgWqJsE2hxJw8v87Sm9pvKkL2MLA8Kl%2FnWbpmhk6KaELxS2bEyUDho3SzgagtjZVvtOAteKR8FBwa8l1lRQtNX4PaoJeWhB%2FQKkP5ar03VDMz9Fa7w8UFs4D9yS9YHbPFIlo%2FrlIZ0wLiRIAEf0W04SCsY13GRLXHp13nNDmQ0wKkulSbwugTkATCaOO3Ll9mQ5yERTRfx8FgTi8P1voeTzd3jvc%2Br%2BG1xaBK6OsFlyY%2F9nVfz7%2BbhdNvC94M3gT5vyjns9R%2F7ntJqMQYAAA%3D%3D

SWC Info output

No response

Expected behavior

maybe

let k = void 0;

Actual behavior

let k = void (void 0)();

which results in calling undefined ((void 0) is not a function)

Version

1.4.11

Additional context

No response