expand escape-template-literals test

test/runtime/samples/escape-template-literals/Widget.html

@@ -0,0 +1 @@
+<div>{{value}}</div>

test/runtime/samples/escape-template-literals/_config.js

@@ -1,3 +1,3 @@
 export default {
-	html: '<code>`${foo}\\n`</code>'
+	html: '<code>`${foo}\\n`</code>\n<div title="`${foo}\\n`">foo</div>\n<div>`${foo}\\n`</div>',
 };

test/runtime/samples/escape-template-literals/main.html

@@ -1 +1,8 @@
 <code>`${foo}\n`</code>
+<div title="`${foo}\n`">foo</div>
+<Widget value="`${foo}\n`"/>
+
+<script>
+	import Widget from './Widget.html';
+	export default { components: { Widget } };
+</script>