Mocking Events does not work with obfuscation.

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What steps will reproduce the problem?

In visual studio all tests succeeded just fine. On the build server there are 
serveral tests which failed. What they have in common is, that they use the 
"raise" method to throw an event. Our build server tests obfuscated what is 
good to find obfuscation errors. Every "normal" expectation like 
"Setup(something).Returns(something)" works. Only the raise event fails. the 
stacktrace looks like the following:

MESSAGE:
Test method 
Ade.Graphic.Presenter.Test.RoutingEngineTest.TestRouteOverLadderLinesWithFbd 
threw exception: 
System.ArgumentException: Could not locate event for attach or detach method 
Void ᜀ(ᦜ[ᢈ]).
+++++++++++++++++++
STACK TRACE:
    bei Moq.Extensions.GetEvent[TMock](Action`1 eventExpression, TMock mock)
   bei Moq.Mock`1.Raise(Action`1 eventExpression, EventArgs args)
   bei Ade.Graphic.Presenter.Test.RoutingEngineTest.TestRouteOverLadderLinesWithFbd()

The code for this is:

documentEventHandler.Raise(stub => stub.DocumentChanged += null,
                                                new DocumentChangeEventArgs(DocumentChangeTypes.ViewUpdate));

We have no idea what is the difference between the code above and this

eventHandler.SetupGet(stub => 
stub.DocumentChangeNotify).Returns(documentEventHandler.Object);

because this code works fine.

What version of the product are you using? On what operating system?

Moq version 4.0.10818.0

Original issue reported on code.google.com by tobias.w...@gmail.com on 22 May 2013 at 6:34