add test

Author: trueadm

packages/svelte/tests/runtime-legacy/samples/escaped-attr-3/_config.js

@@ -0,0 +1,7 @@
+import { test } from '../../test';
+
+export default test({
+	test({ assert, target }) {
+		assert.htmlEqual(target.innerHTML, '<div title="&amp;<">blah</div>');
+	}
+});

packages/svelte/tests/runtime-legacy/samples/escaped-attr-3/main.svelte

@@ -0,0 +1 @@
+<div title="&amp;&lt;">blah</div>