Broken autoimport of module without index reexport

Demo: https://github.com/zerkalica/ts-references-autoimport-bug/tree/no-autoimport-wo-index

TypeScript Version: 4.0.2
VSCode Version: 1.49.2
OS: Ubuntu 20.04.1 LTS

Example 1

Package 'b' depends on 'a', but 'a' has no index.ts and types in package.json.

Steps to reproduce

1. clone, switch to no-autoimport-wo-index, yarn install
2. Open lib/b/b.ts in vscode, type someA
3. Expected: autoimport suggest import { someA } from '@some/lib-a/a', actual: no autoimport

Example 2

Package 'd' depends only on 'c', 'c' depends on 'a', but 'a' has no index.ts and types in package.json.

Steps to reproduce

1. clone, switch to no-autoimport-wo-index, yarn install
2. Open lib/d/d.ts in vscode, type someA
3. Expected: no someA in autoimport, actual: autoimport suggests broken import { someA } from '../a/a'

Clona il branch no-autoimport-wo-index collegato, esegui yarn install e riproduci entrambi i casi in lib/b/b.ts e lib/d/d.ts. Confronta i suggerimenti di autoimport effettivi e attesi, incluse le dichiarazioni dei tipi di package.json, e considera completata la issue quando Example 1 suggerisce @some/lib-a/a mentre Example 2 non suggerisce l’import relativo errato.