move util into utils file

packages/svelte/src/compiler/phases/3-transform/client/utils.js

@@ -378,3 +378,17 @@ export function create_state_declarators(declarator, scope, value) {
 		})
 	];
 }
+
+/** @param {import('estree').Expression} node */
+export function should_proxy(node) {
+	if (
+		!node ||
+		node.type === 'Literal' ||
+		node.type === 'ArrowFunctionExpression' ||
+		node.type === 'FunctionExpression'
+	) {
+		return false;
+	}
+
+	return true;
+}

packages/svelte/src/compiler/phases/3-transform/client/visitors/javascript-runes.js

@@ -2,22 +2,9 @@ import { get_rune } from '../../../scope.js';
 import { is_hoistable_function } from '../../utils.js';
 import * as b from '../../../../utils/builders.js';
 import * as assert from '../../../../utils/assert.js';
-import { create_state_declarators, get_props_method } from '../utils.js';
+import { create_state_declarators, get_props_method, should_proxy } from '../utils.js';
 import { unwrap_ts_expression } from '../../../../utils/ast.js';
 
-/** @param {import('estree').Expression} node */
-function should_proxy(node) {
-	if (
-		node.type === 'Literal' ||
-		node.type === 'ArrowFunctionExpression' ||
-		node.type === 'FunctionExpression'
-	) {
-		return false;
-	}
-
-	return true;
-}
-
 /** @type {import('../types.js').ComponentVisitors} */
 export const javascript_visitors_runes = {
 	ClassBody(node, { state, visit }) {