IntelliSense (partially) not working for SG generated files

[Sergio0694]

Version Used: VS 16.10 Preview 1

Steps to Reproduce:

1. Clone ComputeSharp
2. Open the solution, build ComputeSharp.Sample.Local (or any other sample except the .NuGet one)
3. Expand Dependencies > Analyzers > ComputeSharp.SourceGenerators
4. Look at any of the generated files from any of the generators: IntelliSense is disabled for most types

Expected Behavior:
IntelliSense should work for all types as usual.

Actual Behavior:
IntelliSense is not running except for a few types from the BCL.
Most types are displayed in white, CTRL + click doesn't work, hover doesn't display info, etc.
Some methods are displayed in white too instead of yellow, and IntelliSense is off for them too.

Screenshot:

[huoyaoyuan]

The generated file is categorized as Misc file in IDE. It should be categorized under the project.

[jasonmalinowski]

Yep, dupe of #50676. (And I'm literally working on fixing this right now, so the fix is coming!)

[Sergio0694]

Oh, whoops, my bad - I did check for similar issues but I just missed that one! Glad to hear a fix is already in the works, that's great! I'll close this issue then since it's a duplicate, thanks! 😄

[jasonmalinowski]

@Sergio0694: not a problem! And my personal motto is I'm always happy to close duplicates rather than have somebody not file a bug because they thought it was a known one. I just feel bad for the time you had to waste writing up a good bug report... 😦

[sharwell]

Duplicate of #50676