fix: `validate_snippet_arguments`

packages/svelte/src/internal/client/dev/validation.js

@@ -1,11 +1,11 @@
+import { renderer } from '../custom-renderer/state.js';
 import * as e from '../errors.js';
 /**
  * @param {Node} anchor
  * @param {...(()=>any)[]} args
  */
 export function validate_snippet_args(anchor, ...args) {
-	// TODO RENDERER: don't emit validate args for custom renderers
-	if (typeof anchor !== 'object' || !(anchor instanceof Node)) {
+	if (!renderer && (typeof anchor !== 'object' || !(anchor instanceof Node))) {
 		e.invalid_snippet_arguments();
 	}
 

packages/svelte/tests/custom-renderers/samples/validate-snippet-args/_config.js

@@ -0,0 +1,8 @@
+import { test } from '../../test';
+
+export default test({
+	compileOptions: {
+		dev: true
+	},
+	html: 'world'
+});

packages/svelte/tests/custom-renderers/samples/validate-snippet-args/main.svelte

@@ -0,0 +1,5 @@
+{#snippet greet(name)}
+	{name}
+{/snippet}
+
+{@render greet("world")}