Test for nested object destructuring assignment assignments

packages/svelte/test/runtime/samples/destructure-store-non-store-7/_config.js

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+export default {
+	html: `
+		<p>1</p>
+		<p>2</p>
+		<p>3</p>
+		<p>4</p>
+		<p>5</p>
+		<p>6</p>
+
+		<h1>Bag'ol stores</h1>
+		<p>4</p>
+		<p>5</p>
+		<p>6</p>
+
+		<button>Click me!</button>
+	`,
+
+	async test({ assert, target, window }) {
+		const button = target.querySelector('button');
+		const clickEvent = new window.Event('click');
+
+		await button.dispatchEvent(clickEvent);
+
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+			<p>7</p>
+			<p>8</p>
+			<p>9</p>
+			<p>10</p>
+			<p>11</p>
+			<p>12</p>
+
+			<h1>Bag'ol stores</h1>
+			<p>14</p>
+			<p>13</p>
+			<p>12</p>
+
+			<button>Click me!</button>
+		`
+		);
+	}
+};

packages/svelte/test/runtime/samples/destructure-store-non-store-7/main.svelte

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+<script>
+	import { get, writable } from 'svelte/store'
+
+	let bagOlStores = writable({
+		firstNonStore: 1,
+		secondNonStore: 2,
+		thirdNonStore: 3,
+		firstStore: writable(4),
+		secondStore: writable(5),
+		thirdStore: writable(6)
+	});
+
+	let { firstNonStore, secondNonStore, thirdNonStore, firstStore, secondStore, thirdStore } = $bagOlStores;
+
+	function changeStores() {
+		$bagOlStores = ({
+			firstNonStore,
+			secondNonStore,
+			thirdNonStore,
+			$firstStore,
+			$secondStore,
+			thirdStore
+		} = {
+			firstNonStore: 7,
+			secondNonStore: 8,
+			thirdNonStore: 9,
+			$firstStore: 10,
+			$secondStore: 11,
+			firstStore: writable(14),
+			secondStore: writable(13),
+			thirdStore: writable(12)
+		});
+	}
+</script>
+
+<p>{firstNonStore}</p>
+<p>{secondNonStore}</p>
+<p>{thirdNonStore}</p>
+<p>{$firstStore}</p>
+<p>{$secondStore}</p>
+<p>{$thirdStore}</p>
+
+<h1>Bag'ol stores</h1>
+<p>{get($bagOlStores.firstStore)}</p>
+<p>{get($bagOlStores.secondStore)}</p>
+<p>{get($bagOlStores.thirdStore)}</p>
+
+<button on:click={changeStores}>Click me!</button>

packages/svelte/test/runtime/samples/destructure-store-non-store-8/_config.js

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+export default {
+	html: `
+		<p>1</p>
+		<p>2</p>
+		<p>3</p>
+		<p>4</p>
+		<p>5</p>
+		<p>6</p>
+
+		<h1>Bag'ol stores</h1>
+		<p>6</p>
+		<p>undefined</p>
+		<p>undefined</p>
+
+		<button>Click me!</button>
+	`,
+
+	async test({ assert, target, window }) {
+		const button = target.querySelector('button');
+		const clickEvent = new window.Event('click');
+
+		await button.dispatchEvent(clickEvent);
+
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+			<p>7</p>
+			<p>8</p>
+			<p>9</p>
+			<p>10</p>
+			<p>11</p>
+			<p>12</p>
+
+			<h1>Bag'ol stores</h1>
+			<p>12</p>
+			<p>14</p>
+			<p>15</p>
+
+			<button>Click me!</button>
+		`
+		);
+	}
+};

packages/svelte/test/runtime/samples/destructure-store-non-store-8/main.svelte

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+<script>
+	import { get, writable } from 'svelte/store'
+
+	let bagOlStores = writable([1, 2, 3, writable(4), writable(5), writable(6)]);
+
+	let firstNonStore, secondNonStore, thirdNonStore, firstStore, secondStore, thirdStore;
+	([firstNonStore, secondNonStore, thirdNonStore, firstStore, secondStore, thirdStore] = $bagOlStores);
+
+	function changeStores() {
+		$bagOlStores = ([
+			firstNonStore,
+			secondNonStore,
+			thirdNonStore,
+			$firstStore,
+			$secondStore,
+			thirdStore
+		] = [
+			7,
+			8,
+			9,
+			10,
+			11,
+			writable(12),
+			writable(14),
+			writable(15)
+		]);
+	}
+</script>
+
+<p>{firstNonStore}</p>
+<p>{secondNonStore}</p>
+<p>{thirdNonStore}</p>
+<p>{$firstStore}</p>
+<p>{$secondStore}</p>
+<p>{$thirdStore}</p>
+
+<h1>Bag'ol stores</h1>
+<p>{get($bagOlStores[5])}</p>
+<p>{get($bagOlStores[6])}</p>
+<p>{get($bagOlStores[7])}</p>
+
+<button on:click={changeStores}>Click me!</button>