add test, add to server (noop)

packages/svelte/src/compiler/phases/3-transform/server/visitors/CallExpression.js

@@ -25,6 +25,10 @@ export function CallExpression(node, context) {
 		return b.arrow([], b.block([]));
 	}
 
+	if (rune === '$state.invalidate') {
+		return b.void0;
+	}
+
 	if (rune === '$state.snapshot') {
 		return b.call(
 			'$.snapshot',

packages/svelte/tests/signals/test.ts

@@ -8,7 +8,13 @@ import {
 	render_effect,
 	user_effect
 } from '../../src/internal/client/reactivity/effects';
-import { state, set, update, update_pre } from '../../src/internal/client/reactivity/sources';
+import {
+	state,
+	set,
+	update,
+	update_pre,
+	invalidate
+} from '../../src/internal/client/reactivity/sources';
 import type { Derived, Effect, Value } from '../../src/internal/client/types';
 import { proxy } from '../../src/internal/client/proxy';
 import { derived } from '../../src/internal/client/reactivity/deriveds';
@@ -1212,4 +1218,24 @@ describe('signals', () => {
 			destroy();
 		};
 	});
+
+	test('invalidate reruns dependent effects', () => {
+		let updates = 0;
+		return () => {
+			const a = state(0);
+			const destroy = effect_root(() => {
+				render_effect(() => {
+					$.get(a);
+					updates++;
+				});
+			});
+			set(a, 1);
+			flushSync();
+			assert.equal(updates, 2);
+			invalidate(a);
+			flushSync();
+			assert.equal(updates, 3);
+			destroy();
+		};
+	});
 });