defineEmits with union operator bug

Firstly, thanks for all your work on vue-tsc!

When using union operator in defineEmits:

<script setup lang="ts">
defineEmits<{
	(e: "a" | "b"): string;
}>();

const count = 0;
</script>

<template>
	{{ count }}
</template>

vue-tsc is unable to find variables in the component template:

You can find a repro at this repository: https://github.com/leonzalion/vue-tsc-bug

Let me know if you need any more information and/or if I’m missing anything

[johnsoncodehk]

Thanks for the report!

[yaegassy]

I took a look at the test code for difineEmits itself. There seems to be a test for the Union type.

• https://github.com/vuejs/core/blob/main/packages/compiler-sfc/__tests__/compileScript.spec.ts#L957-L1061