A bit related to #2285 but bigger scope

At #VueAmsterdam2023 the idea came up to make it possible to deprecate all the things like a whole component, named slots, emitters and so on via Volar so it will be displayed as strikethrough in VSCode (and maybe other IDEs)

So for example things like that:

<script setup lang="ts"> import MyDeprecatedComponent from '@/components/MyDeprecatedComponent.vue' </script> <template lang="pug"> MyDeprecatedComponent //- ^ ~~~~~~~~~~~~~ ^  MyDeprecatedComponent template(#header="{ deprecatedItem, nonDeprecated }")  //- ^~~~~^ ^~~~~~~~~~~~~^ </template>

It might be that we need to add some new language features to vue/vue-macros to support this

e.g.

defineOptions({ name: 'MyDeprecatedComponent', deprecated: 'Reason...', })