Source mapping is wrong when you comment out script

[dummdidumm]

Describe the bug
Source mapping is wrong when you comment out script.

To Reproduce

Add "checkJs": true to jsconfig.json / tsconfig.json

<!-- <script>
const bla = true;

</script> -->

<Navigation />

Will do red ("cannot find Navigation") squiggels at script, not at Navigation.

Expected behavior
Everything should work the same as if script is not commented out

System (please complete the following information):

• OS: Windows
• IDE: VSCode
• Plugin/Package: Svelte Beta

Additional context
Maybe that's something inside svelte2tsx, not honoring the comment and thinking there is a script tag.

[dummdidumm]

No longer reproducible.