feat: improve plugin params typing

[fnlctrl]

support plugin params type inference

Close #2589, Closes #2588

[LinusBorg]

@fnlctrl Does this PR have any advantage over the earlier #2589 ?

[pikax]

A few more tests

[pikax]

Suggested change

	import { createApp, App } from './index'
	import { createApp, App, Plugin } from './index'
	const app = createApp({})

[pikax]

Suggested change

	})
	})
	describe('plugin function', () => {
	const plugin = (app: App, config: { num: number; url: string }) => {}
	// @ts-expect-error no arguments
	app.use(plugin)
	// @ts-expect-error invalid arguments
	app.use(plugin, {})
	app.use(plugin, {
	// @ts-expect-error invalid type
	num: '',
	url: ''
	})
	app.use(plugin, {
	num: 1,
	url: ''
	})
	app.use(
	plugin,
	{
	num: 1,
	url: ''
	},
	// @ts-expect-error too many arguments
	true
	)
	})
	describe('no argument', () => {
	const plugin = (app: App) => {}
	app.use(plugin)
	// @ts-expect-error too many arguments
	app.use(plugin, {})
	})
	describe('using plugin type', () => {
	const plugin = ({} as unknown) as Plugin
	app.use(plugin)
	app.use(plugin, true)
	app.use(plugin, {})
	app.use(plugin, 1, 'string', {}, () => {})
	})

[pikax]

Suggested change

const app = createApp({})

[tony19]

This PR no longer compiles as of de954f4: demo

[andria-dev]

Is this PR outdated? If so, it might make sense to close this if no one is working on it. If not, is there a timeline for when this fix can be merged? From my perspective, the changes to packages/runtime-core/src/apiCreateApp.ts look solid.

[antfu]

Thanks for the PR. Close in favor of #3969