failing tests for #2356

test/runtime/samples/component-binding-blowback-d/One.svelte

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+<script>
+	import Two from './Two.svelte';
+
+	export let list;
+
+	function handle_click() {
+		list = [...list, {}];
+	}
+</script>
+
+{#each list as item}
+	<Two bind:value={item.value}/>
+{/each}
+
+<button on:click={handle_click}>
+	click me
+</button>

test/runtime/samples/component-binding-blowback-d/Two.svelte

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+<script>
+	export let value = 'x';
+</script>

test/runtime/samples/component-binding-blowback-d/_config.js

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+export default {
+	html: `
+		<button>click me</button>
+		<button>click me</button>
+
+		<p>{"value":"x"}</p>
+		<p></p>
+	`,
+
+	async test({ assert, target, window }) {
+		const button = target.querySelectorAll('button')[1];
+
+		await button.dispatchEvent(new window.Event('click'));
+
+		assert.htmlEqual(target.innerHTML, `
+			<button>click me</button>
+			<button>click me</button>
+
+			<p>{"value":"x"}</p>
+			<p>{"value":"x"}</p>
+		`);
+	}
+};

test/runtime/samples/component-binding-blowback-d/main.svelte

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+<script>
+	import One from "./One.svelte";
+
+	const obj = {
+		a: [{}],
+		b: []
+	};
+</script>
+
+<One bind:list={obj.a}/>
+<One bind:list={obj.b}/>
+
+<p>{obj.a.map(JSON.stringify)}</p>
+<p>{obj.b.map(JSON.stringify)}</p>

test/runtime/samples/component-binding-blowback-e/One.svelte

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+<script>
+	import Two from './Two.svelte';
+
+	export let list;
+
+	function handle_click() {
+		list = [...list, {}];
+	}
+</script>
+
+{#each list as item}
+	<Two bind:value={item.value}/>
+{/each}
+
+<button on:click={handle_click}>
+	click me
+</button>

test/runtime/samples/component-binding-blowback-e/Two.svelte

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+<script>
+	export let value = { x: true };
+</script>

test/runtime/samples/component-binding-blowback-e/_config.js

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+export default {
+	html: `
+		<button>click me</button>
+		<button>click me</button>
+
+		<p>{"value":{"x":true}}</p>
+		<p></p>
+	`,
+
+	async test({ assert, target, window }) {
+		const button = target.querySelectorAll('button')[1];
+
+		await button.dispatchEvent(new window.Event('click'));
+
+		assert.htmlEqual(target.innerHTML, `
+			<button>click me</button>
+			<button>click me</button>
+
+			<p>{"value":{"x":true}}</p>
+			<p>{"value":{"x":true}}</p>
+		`);
+	}
+};

test/runtime/samples/component-binding-blowback-e/main.svelte

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+<script>
+	import One from "./One.svelte";
+
+	const obj = {
+		a: [{}],
+		b: []
+	};
+</script>
+
+<One bind:list={obj.a}/>
+<One bind:list={obj.b}/>
+
+<p>{obj.a.map(JSON.stringify)}</p>
+<p>{obj.b.map(JSON.stringify)}</p>

test/runtime/samples/component-binding-blowback-f/One.svelte

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+<script>
+	import Two from './Two.svelte';
+
+	export let list;
+
+	function handle_click() {
+		list = [...list, {}];
+	}
+</script>
+
+{#each list as item}
+	<Two bind:value={item.value}/>
+{/each}
+
+<button on:click={handle_click}>
+	click me
+</button>

test/runtime/samples/component-binding-blowback-f/Two.svelte

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+<script>
+	import { onMount } from 'svelte';
+
+	export let value;
+
+	onMount(() => {
+		value = { x: true };
+	});
+</script>

test/runtime/samples/component-binding-blowback-f/_config.js

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+export default {
+	skip: 1,
+
+	html: `
+		<button>click me</button>
+		<button>click me</button>
+
+		<p>{"value":{"x":true}}</p>
+		<p></p>
+	`,
+
+	async test({ assert, target, window }) {
+		const button = target.querySelectorAll('button')[1];
+
+		await button.dispatchEvent(new window.Event('click'));
+
+		assert.htmlEqual(target.innerHTML, `
+			<button>click me</button>
+			<button>click me</button>
+
+			<p>{"value":{"x":true}}</p>
+			<p>{"value":{"x":true}}</p>
+		`);
+	}
+};

test/runtime/samples/component-binding-blowback-f/main.svelte

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+<script>
+	import One from "./One.svelte";
+
+	const obj = {
+		a: [{}],
+		b: []
+	};
+</script>
+
+<One bind:list={obj.a}/>
+<One bind:list={obj.b}/>
+
+<p>{obj.a.map(JSON.stringify)}</p>
+<p>{obj.b.map(JSON.stringify)}</p>