test: add v-cloak case

Author: yyx990803

index.html

@@ -22,6 +22,7 @@ <h2>Tests</h2>
   <li><a href="/tests/html.html">v-html</a></li>
   <li><a href="/tests/text.html">v-text</a></li>
   <li><a href="/tests/pre.html">v-pre</a></li>
+  <li><a href="/tests/cloak.html">v-cloak</a></li>
   <li><a href="/tests/reactive.html">reactive</a></li>
   <li><a href="/tests/multi-mount.html">Multi mount</a></li>
   <li><a href="/tests/custom-delimiters.html">Custom delimiters</a></li>

tests/cloak.html

@@ -0,0 +1,18 @@
+<script type="module">
+  import { createApp } from '../src'
+  createApp({
+    msg: 'content',
+    hide: false
+  }).mount()
+</script>
+
+<div v-scope v-cloak>
+  <div v-cloak v-if="!hide">{{ msg }}</div>
+  <button @click="hide = !hide">toggle</button>
+</div>
+
+<style>
+  [v-cloak] {
+    display: none;
+  }
+</style>