In a Vue CLI project without jsconfig.json, tsserver only knew the files that
were opened: usage counts said "no usages" for code used from unopened .vue
files, and `@/` imports resolved to nothing, so a mixin imported that way made
the component's whole `this` `any` and Go to Declaration failed in the same file.
The tsserver project registered for config-less trees now also serves Vue
(vtsls of vue.toml), includes the files the Vue tsserver plugin handles, and maps
the webpack aliases that @vue/cli-service resolves (else Vue CLI's `@` -> `src`).
Until vtsls has diagnostics for an open file it answers from its syntax server,
so the server reports loading meanwhile and empty usage counts are asked again.
Jaw
410761e0f7