SSR: Should warning when using default slot with values inside #each, #await blocks

[utherpally]

Describe the bug

From 1d6ac5e , we can inherit default slot values in named slots, but when using default slot inside #each, #await blocks, this will make an error xxx is not defined in runtime.
See repl:
https://svelte.dev/repl/f5da3404626a42329a63128c115933ef?version=3.31.2

Expected behavior
Warning or make it work correctly

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.