types: use Builtin instead of Function and Date

Author: Mini-ghost

packages/reactivity/src/reactive.ts

@@ -141,7 +141,7 @@ export function shallowReactive<T extends object>(
 }
 
 type Primitive = string | number | boolean | bigint | symbol | undefined | null
-type Builtin = Primitive | Function | Date | Error | RegExp
+export type Builtin = Primitive | Function | Date | Error | RegExp
 export type DeepReadonly<T> = T extends Builtin
   ? T
   : T extends Map<infer K, infer V>

packages/reactivity/src/ref.ts

@@ -15,7 +15,7 @@ import {
   isReadonly,
   isShallow
 } from './reactive'
-import type { ShallowReactiveMarker } from './reactive'
+import type { Builtin, ShallowReactiveMarker } from './reactive'
 import { CollectionTypes } from './collectionHandlers'
 import { createDep, Dep } from './dep'
 
@@ -491,8 +491,7 @@ export type UnwrapRef<T> = T extends ShallowRef<infer V>
   : UnwrapRefSimple<T>
 
 export type UnwrapRefSimple<T> = T extends
-  | Function
-  | Date
+  | Builtin
   | CollectionTypes
   | BaseTypes
   | Ref