Destructured default value failed on named slots

[a161803398]

Version

2.7.13

Reproduction link

github.com

Steps to reproduce

1. run npm i
2. run npm run dev
3. open dev url in browser

What is expected?

no error

What is actually happening?

After open dev url in browser given following error.

Invalid shorthand property initializer. (1:7)
[vite] Internal server error: Invalid shorthand property initializer. (1:7)
  Plugin: vite:vue2
  File: C:/Users/user/Desktop/v-slot-issue/src/App.vue
  1  |  <script setup lang="ts">
     |         ^
  2  |  import Test from './Test.vue'
  3  |  </script>
      at instantiate (C:\Users\user\Desktop\v-slot-issue\node_modules\@babel\parser\lib\index.js:72:32)
      at constructor (C:\Users\user\Desktop\v-slot-issue\node_modules\@babel\parser\lib\index.js:359:12)
      at Object.raise (C:\Users\user\Desktop\v-slot-issue\node_modules\@babel\parser\lib\index.js:3339:19)
      at Object.checkExpressionErrors (C:\Users\user\Desktop\v-slot-issue\node_modules\@babel\parser\lib\index.js:4083:12)
      at Object.parseMaybeAssign (C:\Users\user\Desktop\v-slot-issue\node_modules\@babel\parser\lib\index.js:12359:12)
      at Object.parseMaybeAssign (C:\Users\user\Desktop\v-slot-issue\node_modules\@babel\parser\lib\index.js:10730:20)
      at Object.parseExpressionBase (C:\Users\user\Desktop\v-slot-issue\node_modules\@babel\parser\lib\index.js:12257:23)
      at C:\Users\user\Desktop\v-slot-issue\node_modules\@babel\parser\lib\index.js:12251:39
      at Object.allowInAnd (C:\Users\user\Desktop\v-slot-issue\node_modules\@babel\parser\lib\index.js:14346:16)
      at Object.parseExpression (C:\Users\user\Desktop\v-slot-issue\node_modules\@babel\parser\lib\index.js:12251:17)

---

It looks like a similar issue as #12591 but on v-slot.

The issue seems to be solved by export slotRE and use it to set slot baseName in compileScript.ts.

          const baseName = onRE.test(name)
            ? 'on'
+           : slotRE.test(name)
+           ? 'slot'
            : bindRE.test(name)
            ? 'bind'
            : name.replace(dirRE, '')