improvement(components): add Sync and Async components for testing

Author: AtofStryker

test/resources/components/component-with-async-error.vue

@@ -0,0 +1,12 @@
+<template>
+  <div />
+</template>
+
+<script>
+export default {
+  async beforeMount() {
+    await new Promise(resolve => resolve())
+    throw new Error()
+  }
+}
+</script>

test/resources/components/component-with-sync-error.vue

@@ -0,0 +1,11 @@
+<template>
+  <div />
+</template>
+
+<script>
+export default {
+  beforeMount() {
+    throw new Error()
+  }
+}
+</script>