fix: type

Author: KazariEX

packages/language-core/lib/codegen/script/scriptSetup.ts

@@ -71,7 +71,7 @@ export function* generateScriptSetup(
 			+ `	attrs: any,${newLine}`
 			+ `	slots: __VLS_Slots,${newLine}`
 			+ `	emit: ${emitTypes.length ? emitTypes.join(' & ') : `{}`},${newLine}`
-			+ ` __typeEmits: __VLS_Emit,${newLine}`
+			+ ` __typeEmits?: __VLS_Emit,${newLine}`
 			+ `}${endOfLine}`;
 		yield `})(),${newLine}`; // __VLS_setup = (async () => {
 		yield `) => ({} as import('${options.vueCompilerOptions.lib}').VNode & { __ctx?: Awaited<typeof __VLS_setup> }))`;