fix(types): expose emits as props in functional components (#9234)

Author: blake-newman

packages/dts-test/functionalComponent.test-d.tsx

@@ -45,7 +45,7 @@ Bar.emits = {
 Bar.emits = { baz: () => void 0 }
 
 // TSX
-expectType<JSX.Element>(<Bar foo={1} />)
+expectType<JSX.Element>(<Bar foo={1} onUpdate={() => {}} />)
 //  @ts-expect-error
 ;<Foo />
 //  @ts-expect-error

packages/runtime-core/src/component.ts

@@ -50,7 +50,8 @@ import {
   ObjectEmitsOptions,
   EmitFn,
   emit,
-  normalizeEmitsOptions
+  normalizeEmitsOptions,
+  EmitsToProps
 } from './componentEmits'
 import {
   EMPTY_OBJ,
@@ -131,7 +132,7 @@ export interface FunctionalComponent<
 > extends ComponentInternalOptions {
   // use of any here is intentional so it can be a valid JSX Element constructor
   (
-    props: P,
+    props: P & EmitsToProps<E>,
     ctx: Omit<SetupContext<E, IfAny<S, {}, SlotsType<S>>>, 'expose'>
   ): any
   props?: ComponentPropsOptions<P>