FSharpType.Format(displayContext) should take into account flexible types

There is an API (`FSharpType.Format(displayContext)`) that provides a common way to present F# types to show in the editor.
But for flexible types (where generic parameters with the constraint are just compiler/runtime implementation details), `Format` returns the name of the generic parameter, which can be confusing, since the code explicitly specifies the type written as `#IDisposable ( & ... & ... )`, so the name of the generic parameter appears out of nowhere and at the moment does not reflect the expected type information (especially suitable for the editor) in any way.

**Repro steps**

Enable inlay type hints in editor

```F#
open System

let f (disposables: #IDisposable list) =
for x in disposables do ()
```

**Expected behavior**

For `x` provided expected type as `#IDisposable`

**Actual behavior**

Rider

VS Code

Visual Studio

Example of FSharpType for `#IDisposable` 

I would expect that this API fully formats the flexible type, providing ready information for the editor