title: How to make VS code able to lookup code in subproject directory for autocompletion?
body: <p>I have project structure</p>
  <pre><code>-core_data
  -core_domain
  -core_ui
  -core_launcher
  </code></pre>
  <p>The dependency of these 4 projects is</p>
  <pre><code>core_launcher -&gt; core_ui -&gt; core_domain -&gt; core_data
  </code></pre>
  <p>4 projects are located in the same directory and I include one to another via pubspec.yaml file (for example core_launcher/pubspec.yaml):</p>
  <pre><code>dependencies:
    flutter:
      sdk: flutter
    core_ui:
      path: ../core_ui
  </code></pre>
  <p>The same thing I do with all projects to make dependency hierarchy.</p>
  <p>The problem is that I can import all files from <code>core_ui</code> subproject when I'm currently editing some file in <code>core_launcher</code> but VSCode doesn't see any classes from his parents
  (core_domain &amp; core_data).</p>
  <p>However, I can input <code>import 'blah-blah-blah</code> manually and VSCode see this class and import works well, but I can't do that with hit Alt+Enter that I do for fast-import.
  So, I'm wondering why autocomplete is not working for inherited libraries.</p>
  <p>Somebody had the same issue?</p>