Auto complete shows too many suggestions on types that have custom extension methods/properties

[ManuelRauber]

Steps to reproduce

1. Open the project using Android Studio.
2. Open lib/package-c/example-c.dart.
3. Within the method just start typing c.hasContent and observe the auto complete suggestions:
   

The auto complete shows too many completion suggestions.
There should only be the last one.
The other two suggestions are just files importing the extensions as well, but not (re-) exporting them.
If you create more files importing the extensions the more suggestions you will get.

Expected result:

I expect only to see the correct import of the file that also exports the extensions.

Actual result:

I see suggestions of files that only import the extensions for their own usage.

Additional information

Here is a GitHub Repo with an example to test yourself.

Used versions

• Android Studio Koala Feature Drop | 2024.1.2 Patch 1 (Build #AI-241.19072.14.2412.12360217)
• Dart: 3.5.2
• Dart Plugin Version: 241.18968.26

[dart-github-bot]

Summary: The issue is that Dart's auto-complete suggests too many imports when using custom extension methods/properties. It suggests files that import the extensions but don't re-export them, leading to an excessive number of suggestions.

[FMorschel]

I have a feeling this is the same as #56320. Please take a look.

[ManuelRauber]

@FMorschel Oh, you're right! It was my fault; I was only searching for open issues, so I did not see a report or a fix that would ship soon. Thanks for pointing that out! :)