Confusing use of ticks in FS0064 warning.

See the real life situation here https://github.com/dotnet/fsharp/discussions/18808

One type argument is `'TRequest`, the other `'TRequest'`

The first impression is that the warning message adds it's own ticks without rhyme or reason:

`This construct causes code to be less generic than indicated by the type annotations. The type variable 'TRequest' has been constrained to be type ''TRequest'`

It's also not correct in the sense that the second part is not actual type but a type variable.