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The F# compiler, F# core library, F# language service, and F# tooling integration for Visual Studio

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In the script files, the following code is analysed in the editor without any errors ```F# module A let x = 3 ``` but if you send this code to...

Bug
Area-Diagnostics

![image](https://github.com/dotnet/fsharp/assets/46543583/171c5566-5d49-4a87-8ae0-8b450201901c) Microsoft Visual Studio Enterprise 2022 Version 17.11.0 Preview 1.0 [34801.192.main] VisualStudio.17.**IntPreview**/17.11.0-pre.1.0+34801.192.main Visual F# Tools 17.10.0-**dev** Microsoft Visual F# Tools The screenshot above was done custom-built .vsix for the nullness...

Bug
Impact-Medium
Area-VS-Editor

Please provide a succinct description of the issue. Using the [transparent compiler in FSAC](https://github.com/ionide/FsAutoComplete/pull/1240), I've noticed large memory usage. After doing some investigation with dotnet-dump and dotmemory I've found two...

Impact-Medium
Area-FCS
Feature Improvement
Triage-Investigate

When a project has two types with the same name in the same namespace defined in two separate files, and the second of the two definitions is referenced in another...

Bug
Area-Compiler-Checking
Triage-Investigate

Hi, I am getting a strange `TypeLoadException` in my code when I am trying to create a delegate that contains a `voidptr`, but only when I return it. ```` System.TypeLoadException:...

Bug
Impact-Low
Area-Compiler-CodeGen

This one is a bit weird, and I don't know if this is the right place for it. If you define two interfaces that implement a common, third interface, the...

Bug
Impact-Low
Area-LangService-CodeFixes

An Attribute defined in a rec module can't be used in the same rec module. #### Repro steps ```fsharp module rec M type CustomAttribute () = inherit System.Attribute () type...

Bug
Impact-Medium
Area-Compiler-Checking
help wanted

```fsharp open System.Drawing let f() = use mutable font = new Font("Arial", 10.0f) font

Feature Improvement
Area-Compiler-Checking

![image](https://user-images.githubusercontent.com/873919/42083384-66382d68-7b93-11e8-9510-5a717a44e829.png) ```fsharp #nowarn "9" open System type TestCaseBuilder() = member __.Using(disposable: IDisposable, f) = try f disposable finally match disposable with | null -> () | disp -> disp.Dispose() member...

Feature Improvement
Area-Diagnostics

A private type extension `type private X with` inside a module will be in scope after the module is opened. #### Repro steps ```fsharp module Test module Inner = type...

Bug
Impact-Medium
Area-Compiler-Checking