key results in type error when used on functional component

[yyx990803]

Example:

<script setup lang="ts">
function Foo(props: { x?: number }) {
  return 'hi'
}
</script>

<template>
  <Foo :key="1" />
</template>

[johnsoncodehk]

It is designed to give full control by user. Currently you need define props type as { [key: string]: unknown, x?: number }, see #227.

[johnsoncodehk]

After some digging, I just found IntrinsicAttributes should be include to props type, will resolve it.