fix: Map index type incorrect in v-for

close #544

Author: johnsoncodehk

packages/vscode-vue-languageservice/src/utils/globalDoc.ts

@@ -67,8 +67,8 @@ declare global {
 	interface __VLS_GlobalComponents extends GlobalComponents { }
 	var __VLS_defineComponent: PickNotAny<typeof vue_1.defineComponent, typeof vue_2.defineComponent>;
 	function __VLS_getVforSourceType<T>(source: T): T extends number ? number[] : T;
-	function __VLS_getVforKeyType<T>(source: T): T extends AnyArray ? number : keyof T;
-	function __VLS_getVforIndexType<T>(source: T): T extends AnyArray ? undefined : number;
+	function __VLS_getVforKeyType<T>(source: T): T extends AnyArray ? number : typeof Symbol.iterator extends keyof T ? number : keyof T;
+	function __VLS_getVforIndexType<T>(source: T): T extends AnyArray ? undefined : typeof Symbol.iterator extends keyof T ? undefined : number;
 	function __VLS_getNameOption<T>(t?: T): T extends { name: infer N } ? N : undefined;
 	function __VLS_pickForItem<S, T2>(source: S, forInItem: T2): S extends { [Symbol.iterator](): IterableIterator<infer T1> } ? T1 : T2;
 	function __VLS_mergePropDefaults<P, D>(props: P, defaults: D): {