Add an analyzer + fixer scenario to support converting type comparisons to use `TypeOf<>` constraint

[stevenaw]

Tests checking that an expected and actual are the same type may written in a way that compares the types directly using EqualTo() like the below:

// generic 'expected'
Assert.That(0.GetType(), Is.EqualTo(typeof(int)));

// non-generic 'expected'
Assert.That(0.GetType(), Is.EqualTo(1.GetType()));

It might be desirable to allow for these to be converted to use the TypeOf constraints instead as it would be a shorter yet clearer assertion with a potentially more descriptive failure messages.

// generic 'expected'
-Assert.That(0.GetType(), Is.EqualTo(typeof(int)));
+Assert.That(0, Is.TypeOf<int>());

// non-generic 'expected'
-Assert.That(0.GetType(), Is.EqualTo(1.GetType()));
+Assert.That(0, Is.TypeOf(1.GetType()));

[manfred-brands]

This relates to #765 which also converts type based tests. Maybe it can be added there.