feat(types): Add Exposed template to SetupContext

[michaelcozzolino]

This PR allows the possibility to type expose when using defineComponent with composition api

export const UseVirtualList = defineComponent(
  <T = any>(props: {msg: T}, { slots, expose }: SetupContext<EmitsOptions, SlotsType<{}>, { index: number }>,
  ) => {
        ...
        const index = 2
        expose({index})
})

I added the template wherever it would be needed.
i'm not sure if in packages/runtime-core/src/componentOptions.ts at line 142 it's needed as well, as i already see an Exposed template, but doesn't look like having the type for the one in SetupContext. let me know if everything is fine

[github-actions]

Size Report

Bundles

File	Size	Gzip	Brotli
runtime-dom.global.prod.js	100 kB	38.1 kB	34.4 kB
vue.global.prod.js	158 kB	58.3 kB	51.9 kB

Usages

Name	Size	Gzip	Brotli
createApp (CAPI only)	46.4 kB	18.2 kB	16.6 kB
createApp	54.4 kB	21.2 kB	19.4 kB
createSSRApp	58.6 kB	22.9 kB	20.9 kB
defineCustomElement	59.2 kB	22.7 kB	20.7 kB
overall	68.5 kB	26.4 kB	24 kB

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commit: 040b0f3

[jh-leong]

Thanks for the PR!

Could you please add test cases for this change in:

• packages-private/dts-test/defineComponent.test-d.tsx
• packages-private/dts-test/functionalComponent.test-d.tsx

This would help verify the type behavior.

[michaelcozzolino]

Thanks for the PR!

Could you please add test cases for this change in:

• packages-private/dts-test/defineComponent.test-d.tsx
• packages-private/dts-test/functionalComponent.test-d.tsx

This would help verify the type behavior.

I added a test, but i was able to achieve the goal just partially, the expose keys seem to be typed properly, but the values are not typed at all, do you have any suggestions?