Support named argument syntax for property setters in VS

Inspired by [this PR](https://github.com/dotnet/docs/pull/38807) from @smoothdeveloper.

Basically, VS doesn't have any IntelliSense for any of [this](https://learn.microsoft.com/en-us/dotnet/fsharp/language-reference/parameters-and-arguments#named-arguments):

The right thing does pop up when one starts typing it, however it also includes a bunch of random irrelevant stuff:

Code for copypaste:
```fsharp
type Account() =

let mutable number = 0

member this.AccountNumber
with get() = number
and set(value) = number <- value

let account1 = new Account()
```