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'

Clonez la branche no-autoimport-wo-index liée, exécutez yarn install et reproduisez les deux cas dans lib/b/b.ts et lib/d/d.ts. Comparez les suggestions d’autoimport réelles et attendues, y compris les déclarations de types de package.json, et considérez l’issue comme terminée lorsque Example 1 suggère @some/lib-a/a tandis que Example 2 ne suggère pas l’import relatif incorrect.