Godot 4.3 Dev3 Mono cannot open C# script with Visual Studio

[J-Ponzo]

Tested versions

Reproduced with : v4.3.dev3.mono.official [36e943b]

NOT Reproduced with : v4.3.dev2.mono.official [3524346]

System information

Godot v4.3.dev3.mono - Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 2080 (NVIDIA; 31.0.15.3623) - Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (8 Threads)

Issue description

When the external editor is set to Visual Studio (Editor Settings => Dotnet => Editor => External Editor), double-clicking a C# script from the FileSystem Dock fails with this error :
/root/godot/modules/mono/editor/GodotTools/GodotTools/GodotSharpEditor.cs:279 - Error when trying to run code editor: VisualStudio. Exception message: 'An error occurred trying to start process 'D:/GodotEngines/Godot_v4.3-dev3_mono_win64/GodotSharp/Tools\GodotTools.OpenVisualStudio.exe' with working directory 'C:\Users\JPonzo\vs-open-issue'. The system cannot find the file specified.'

I checked the content of GodoSharp/Tool/ and there is no GodotTools.OpenVisualStudio.exe file indeed. In the Godot_v4.3-dev2_mono_win64 archive the file is there and the bug is not present

Steps to reproduce

• Launch Godot 4.3 Dev3 Mono and create a new project
• Make sure the External Editor is set to Visual Studio
• Create a new C# script
• Double click the new C# script
  => Visual Studio does not open and the outpout dispalys the error message

Minimal reproduction project (MRP)

vs-open-issue.zip

[raulsntos]

Likely a regression from #86454
cc @Repiteo

[cjohnson57]

There are actually files there, just none of them have the .exe extension

[cjohnson57]

FYI I tried placing the .exe and the .exe.config from 4.3-dev2 into the folder. After doing this, trying to open a script won't error but nothing will happen at all.