fix: filter union component type

johnsoncodehk/vue-tsc#80

Author: johnsoncodehk

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

@@ -12,8 +12,10 @@ import type * as vue_2 from 'vue';
 import type * as vue_3 from '@vue/runtime-core';
 
 type IsAny<T> = boolean extends (T extends never ? true : false) ? true : false;
-type IsComponent<T> = T extends (new (...args: any) => any) | FunctionalComponent<infer _> ? true : false;
-type ComponentKeys<T> = keyof { [K in keyof T as IsComponent<T[K]> extends false ? never : K]: any };
+type IsFunctionalComponent<T> = T extends FunctionalComponent<infer _> ? true : false;
+type IsConstructorComponent<T> = T extends new (...args: any) => any ? true : false;
+type IsComponent<T> = IsConstructorComponent<T> extends true ? true : IsFunctionalComponent<T> extends true ? true : false;
+type ComponentKeys<T> = keyof { [K in keyof T as IsComponent<T[K]> extends true ? K : never]: any };
 export type PickNotAny<A, B> = IsAny<A> extends true ? B : A;
 type AnyArray<T = any> = T[] | readonly T[];
 type NonUndefinedable<T> = T extends undefined ? never : T;