Tidied up test

test/runtime/samples/binding-this-function/Foo.svelte

@@ -1,9 +1,8 @@
 <script>
-    let clicked = "False";
+    let clicked = false;
     export function click() {
-        clicked = "True";
+        clicked = true;
     }
 </script>
 
-
 <p>{clicked}</p>

test/runtime/samples/binding-this-function/_config.js

@@ -5,6 +5,6 @@ export default {
 		const eventClick = new window.MouseEvent('click');
 		
 		await button.dispatchEvent(eventClick);
-		assert.htmlEqual(p.innerHTML, 'True');
+		assert.htmlEqual(p.innerHTML, 'true');
 	}
 };

test/runtime/samples/binding-this-function/main.svelte

@@ -1,6 +1,6 @@
 <script>
 	import Foo from './Foo.svelte';
-	export let foo;
+	let foo;
 </script>
 
 <button on:click={foo.click} />