fix(language-core): always report missing props on <slot>

[KazariEX]

fix #4979

[pkg-pr-new]

Open in Stackblitz

vue-component-meta

pnpm add https://pkg.pr.new/vuejs/language-tools/vue-component-meta@4982

vue-component-type-helpers

pnpm add https://pkg.pr.new/vuejs/language-tools/vue-component-type-helpers@4982

@vue/language-plugin-pug

pnpm add https://pkg.pr.new/vuejs/language-tools/@vue/language-plugin-pug@4982

@vue/language-core

pnpm add https://pkg.pr.new/vuejs/language-tools/@vue/language-core@4982

@vue/language-server

pnpm add https://pkg.pr.new/vuejs/language-tools/@vue/language-server@4982

@vue/language-service

pnpm add https://pkg.pr.new/vuejs/language-tools/@vue/language-service@4982

vue-tsc

pnpm add https://pkg.pr.new/vuejs/language-tools/vue-tsc@4982

@vue/typescript-plugin

pnpm add https://pkg.pr.new/vuejs/language-tools/@vue/typescript-plugin@4982

commit: 66e58c3