Why is the C# compiler emitting a callvirt instruction for a GetType() method call?

Question

I am curious to know why this is happening. Please read the code example below and the corresponding IL that was emitted in comments below each section:

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Answer 1

As a (perhaps-)interesting aside... GetType() is unusual in that it isn't virtual - this leads to some very, very odd things.

(marked as wiki as it is somewhat off-topic to the actual question)