Don't work with class-style component

[jimhucksly]

Describe the bug

<template>
  <div> Hello World </div>
</template>

<script lang="ts">
import { Vue } from 'vue-class-component'

export default class IndexPage extends Vue {
  //
}
</script>

error

runtime-core.esm-bundler.js:6568 [Vue warn]: Component is missing template or render function. 
  at <Anonymous onVnodeUnmounted=fn<onVnodeUnmounted> ref=Ref< undefined > key="/" > 
  at <BaseTransition mode="out-in" appear=false persisted=false  ... > 
  at <Transition name="page" mode="out-in" > 
  at <NuxtLayout key=0 name=undefined > 
  at <RouterView> 
  at <NuxtPage> 
  at <App> 
  at <Root>

Reproduction

https://gitlab.com/jimhucksly/pitertour/-/tree/master

System Info

System:
    OS: Windows 10 10.0.19043
    CPU: (12) x64 Intel(R) Core(TM) i5-10600 CPU @ 3.30GHz
    Memory: 8.05 GB / 15.62 GB
  Binaries:
    Node: 14.18.0 - C:\Program Files\nodejs\node.EXE
    npm: 6.14.15 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Edge: Spartan (44.19041.1266.0), Chromium (94.0.992.50)
    Internet Explorer: 11.0.19041.1202
  npmPackages:
    @vitejs/plugin-vue: ^1.9.3 => 1.9.3
    vite: ^2.6.10 => 2.6.10

Used Package Manager

npm

Logs

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to https://github.com/vuejs/vue-next instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[sodatea]

Fixed by #5374