Fix IFSharpFindDefinitionService MEF export

[vzarytovskii]

Fixes #14053, more info in dotnet/roslyn#50391, IFSharpFindDefinitionService will be replacing IFSharpGoToDefinitionService

@CyrusNajmabadi @333fred do we need to do anything else? When I remove the FSharpGoToDefinitionService, FSharpFindDefinitionService isn't getting called now in VS debug when I try to navigate to definition.

[333fred]

I wouldn't expect you to need to do anything else. It should be getting pulled in at https://github.com/dotnet/roslyn/blob/main/src/EditorFeatures/Core/GoToDefinition/GoToDefinitionHelpers.cs#L142.

[vzarytovskii]

I wouldn't expect you to need to do anything else. It should be getting pulled in at https://github.com/dotnet/roslyn/blob/main/src/EditorFeatures/Core/GoToDefinition/GoToDefinitionHelpers.cs#L142.

@333fred yeah, that's what I expected too, but when I'm remove the exports from the old service, breakpoints are not getting hit in the new service.

[333fred]

Have you tried setting breakpoints in the Roslyn locations and seeing what's happening? Are there any mef composition errors?

[vzarytovskii]

Have you tried setting breakpoints in the Roslyn locations and seeing what's happening? Are there any mef composition errors?

Haven't checked it yet, was my next step to see if it's getting imported and build and deploy roslyn part

[vzarytovskii]

I am going to merge this one to fix the MEF export issues, otherwise it will be stale.
I will investigate why Roslyn doesn't call it separately.