test(tsc): add a test case for class component

Author: johnsoncodehk

test-workspace/tsc/passedFixtures/vue3/class-component/main.vue

@@ -0,0 +1,9 @@
+<script lang="ts">
+export default class {
+	private data = 'Hello, Vue 3!';
+}
+</script>
+
+<template>
+	<div>{{ data }}</div>
+</template>