feat: + component update case

rustle/tests/component_update/Nested.rustle

@@ -0,0 +1,5 @@
+<script>
+	export let q;
+</script>
+
+<p>...don't affect this element {q}</p>

rustle/tests/component_update/app.rustle

@@ -0,0 +1,9 @@
+<script>
+  let url = '/tutorial/image.gif';
+  const update_url = () => url--;
+
+	const Nested = require('./Nested.rustle');
+</script>
+
+<button on:click={update_url} />
+<Nested q={url} />

rustle/tests/test_parsing.rs

@@ -52,3 +52,6 @@ fn test_parsing_nested() { test_parsing("nested".to_owned()) }
 
 #[test]
 fn test_tag_update() { test_parsing("tag_update".to_owned()) }
+
+// #[test]
+// fn test_component_update() { test_parsing("component_update".to_owned()) }