`print(parse(code))` produces broken code

[x0k]

Describe the bug

See reproduction

1. The keyword module is missing.
2. The keyword in has been replaced with extends.
3. ;} in @const expression

Reproduction

https://svelte.dev/playground/hello-world?version=5.51.2#H4sIAAAAAAAAA3WQQU_DMAyF_4plDtukahVwK9sEN8QEHDgukwiNC4E0iRKPgaL8d5RuiA3BLXl-tp-_hFb2hA1ekzEOti4YBWNSmklNsMJOG4rYrBLypy--ImD13XXl_TS-k-GiPclIf-mts0yWIzY4i23QnhfCCta9d4EhgZchUgU-aMuQoQuuh9Guu25d77WhMLoQ9qCpdYr2xmmtJMvpaxwJO6t_5tuZD7RIxZlndXkP4kuA-qA8LB0PCcbFWkGC3ikKtgEOG4I8mUyPZmCFTB-MTSnn6h8w-0zHVH7EAyT0MVykqJMbw_C4RwRG2ue5QI4CB1yKWiMDlXQbQyBwR0ggpLxjU4LALcwhlZ_g1RK0hTf6dB3cPNzfrRtYlkr-BSqd6G44tszhdNk6Gxk652AOp2fnWdhU6y4L-3h8-7pCltpstVXYdNJEyl-slgCKTwIAAA

Logs

System Info

System:
    OS: Linux 6.12 cpe:/o:nixos:nixos:25.11 25.11 (Xantusia)
    CPU: (8) x64 Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz
    Memory: 1.76 GB / 7.64 GB
    Container: Yes
    Shell: 5.3.3 - /run/current-system/sw/bin/bash
  Binaries:
    Node: 24.13.0 - /nix/store/956qv0nylc2sbj7fdbycfl6l5bm1hs47-nodejs-24.13.0/bin/node
    npm: 11.6.2 - /nix/store/956qv0nylc2sbj7fdbycfl6l5bm1hs47-nodejs-24.13.0/bin/npm
    pnpm: 10.28.0 - /nix/store/h8b8sm58mryc12cl12jn8h04v68wi96j-pnpm-10.28.0/bin/pnpm
  Browsers:
    Brave Browser: 144.1.86.146
  npmPackages:
    svelte: ^5.51.2 => 5.51.2

Severity

annoyance