No analyzer/refactoring for throw expression?

I have code as shown below:
```
if (value is Student student)
{
return student;
}

throw new ArgumentException("value must be of type Student", nameof(value));
```

I would like to have an analyzer to replace it with below (when the `Student` is reference type):
```
return value as Student ?? throw new ArgumentException("value must be of type Student", nameof(value));
```

Use the two C# examples in the issue as the behavioral specification, then locate the analyzer/refactoring entry point in Roslynator. Confirm how existing analyzer tests are organized before implementing the transformation only when Student is a reference type. Done means the first form is offered as the requested throw-expression form and covered by a regression test.

Written by the indexing model from the issue text.