Cannot use @debug block with multiple arguments

[dkzlv]

Describe the bug
If you pass multiple arguments to {@debug} it will result in an error (will compile though).

To Reproduce

<script lang="ts">
  let a = 1,
    b = 2;
</script>

<!-- Error: JSX expressions may not use the comma operator. Did you mean to write an array? -->
{@debug a, b}

System (please complete the following information):

• OS: Mac OS
• IDE: VSCode
• Plugin/Package: Svelte for VSCode