Add check to InstanceProducer constructor preventing incompatible Registration objects from being supplied

[dotnetjunkie]

This code compiles and runs:

// class Logger : ILogger
var registration = Lifestyle.Transient.CreateRegistration<ILogger, Logger>(container);
// Logger does not implement IPlugin
var producer = new InstanceProducer(typeof(IPlugin), registration);
object instance = producer.GetInstance();

The returned instance is of type Logger. But this is about the only case where this works. When a decorator is applied to IPlugin, an ugly exception will be thrown when the expression tree is built. Obviously, casting the GetInstance() result to an IPlugin will fail.

A pre-condition check needs to be added to prevent that the InstanceProducer can't be created.

This can actually be a bit tricky, because some parts of the system create Registration instances without or with incorrect ImplementationTypes. Especially the decorator subsystem for uncontrolled collections does this.