style-directives: push updater into update chunks; add dynamic test;

src/compiler/compile/render_dom/wrappers/Element/index.ts

@@ -923,6 +923,7 @@ export default class ElementWrapper extends Wrapper {
 			const updater = b`@set_style(${this.var}, "${name}", ${snippet}, false)`;
 
 			block.chunks.hydrate.push(updater);
+			block.chunks.update.push(updater);
 		});
 	}
 

test/runtime/samples/inline-style-directive-dynamic.solo/_config.js

@@ -0,0 +1,12 @@
+export default {
+	html: `
+		<p style="color: red;"></p>
+	`,
+
+	test({ assert, component, target }) {
+		component.myColor = 'blue';
+		assert.htmlEqual(target.innerHTML, `
+			<p style="color: blue;"></p>
+		`);
+	}
+};

test/runtime/samples/inline-style-directive-dynamic.solo/main.svelte

@@ -0,0 +1,5 @@
+<script>
+	export let myColor = "red";
+</script>
+
+<p style:color={myColor} />