Ionide-vscode-fsharp: fsi config object doesn't get Intellisense

[brettrowberry]

Describe the bug
The fsi configuration object in F# scripts is recognized in Visual Studio, but not in Ionide.

To Reproduce
Steps to reproduce the behaviour:

1. Create a new file, Script.fsx
2. Start typing fsi.ShowDeclarationValues <- false
3. No Intellisense appears

Expected behaviour
Intellisense appears on the fsi object.

Screenshots
Here's what is looks like in Visual Studio:

Here's Ionide:

Environment (please complete the following information):

• OS: Windows 10
• Ionide version: 4.17.0
• VSCode version: 1.51.1
• dotnet SDK version: 5.0.100

Additional context
There might be something I'm missing. I don't think the behavior needs to be identical to Visual Studio, but I couldn't figure it out.

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[baronfel]

We need to make sure that the f# interactive settings DLL is part of the generated reference set. It was at one point in the past, but it's entirely possible it's slipped out again.

[Krzysztof-Cieslak]

@baronfel I can confirm it's broken on the latest preview

[Krzysztof-Cieslak]

Correction:

• We don't have access to it in build.fsx/FAKE script
• I can see it on normal .fsx file just fine:

[Krzysztof-Cieslak]

Ok, this is working as described above in Ionide 5.0, and it's correct behaviour as far as I can tell.

[brettrowberry]

I was just about to close this. Yep, works great in v5.0.0. Thank you!